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Asus ZenFone 8 smartphone in review: Compact and powerful

Under 6 inches. Asus already shows on paper that a powerful configuration can also be packed into a small smartphone with the Zenfone 8. We will find out what it is capable of in the end in our review.
Mike Wobker, 👁 Daniel Schmidt, Brian Burriston (translated by DeepL / Ninh Duy), 🇩🇪 🇳🇱 ...
Asus ZenFone 8

The Asus smartphones Zenfone 6 and Zenfone 7 Pro scored with a high-quality build and very good performance in our tests. Asus' Zenfone 8 wants to continue this trend and therefore relies on a high-end SoC and fast storage.

For a price of approximately 800 Euros (~$800), it will have to compete with the rivals listed below in our test. More devices from our database can be added for comparison under each section.

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Asus ZenFone 8 (Zenfone Series)
Processor
Qualcomm Snapdragon 888 5G 8 x 1.8 - 2.8 GHz, Cortex-X1 / A78 / A55 (Kryo 680)
Graphics adapter
Memory
16384 MB 
, LPDDR5
Display
5.92 inch 20:9, 2400 x 1080 pixel 445 PPI, capacitive, AMOLED, glossy: yes, HDR, 120 Hz
Storage
256 GB UFS 3.1 Flash, 256 GB 
, 240 GB free
Connections
1 USB 2.0, USB-C Power Delivery (PD), Audio Connections: 3.5mm combined audio jack, usb-c, 1 Fingerprint Reader, NFC, Brightness Sensor, Sensors: acceleration, gyroskop, compass, gravity
Networking
802.11 a/b/g/n/ac/ax (a/b/g/n = Wi-Fi 4/ac = Wi-Fi 5/ax = Wi-Fi 6), Bluetooth 5.2, 2G GSM (850, 900, 1800, 1900), 3G UMTS (B1, B2, B3, B4, B5, B6, B8, B19), 4G LTE FDD/TDD (B1, B2, B3, B4, B5, B7, B8, B12, B17, B18, B19, B20, B26, B28, B34, B38, B39, B40, B41, B42), 5G (n1, n2, n3, n5, n7, n8, n12, n20, n28, n38, n77, n78), Dual SIM, LTE, 5G, GPS
Size
height x width x depth (in mm): 8.9 x 148 x 68.5 ( = 0.35 x 5.83 x 2.7 in)
Battery
4000 mAh Lithium-Polymer
Charging
fast charging / Quickcharge
Operating System
Android 11
Camera
Primary Camera: 64 MPix Sony IMX686 (f/1.8, 1/1.7", 0.8 µm, 78,3°), 12 MP ultrawide Sony IMX363 (f/2.2, 1,255", 1,4 µm), Camera2 API: Level 3
Secondary Camera: 12 MPix Sony IMX663 (1,22 µm)
Additional features
Speakers: Dual, Keyboard: onscreen, Keyboard Light: yes, power supply, usb-c cable, protector case, 24 Months Warranty, SAR value (head): 1,412 W/kg, SAR value (body): 1,582 W/kg, DRM Widevine L1, fanless, waterproof
Weight
169 g ( = 5.96 oz / 0.37 pounds), Power Supply: 110 g ( = 3.88 oz / 0.24 pounds)
Price
799 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Possible competitors in comparison

Rating
Date
Model
Weight
Drive
Size
Resolution
Best Price
85.6 %
06/2021
Asus ZenFone 8
SD 888 5G, Adreno 660
169 g256 GB UFS 3.1 Flash5.92"2400x1080
84.4 %
10/2020
Google Pixel 5
SD 765G, Adreno 620
151 g128 GB UFS 2.1 Flash6.00"2340x1080
87.1 %
04/2021
OnePlus 9
SD 888 5G, Adreno 660
192 g256 GB UFS 3.1 Flash6.55"2400x1080
89.4 %
02/2021
Samsung Galaxy S21
Exynos 2100 5G, Mali-G78 MP14
169 g128 GB UFS 3.1 Flash6.20"2400x1080
89.8 %
12/2020
Apple iPhone 12 mini
A14, A14 Bionic GPU
133 g128 GB NVMe5.40"2340x1080

Case - Small smartphone with IP certificate

Asus manufactures the Zenfone 8 with a metal frame and a back made of Corning Gorilla Glass 3. The display is protected by Corning Gorilla Glass Victus. There is also a choice of two colors, "Obsidian Black" and "Horizon Silver", and the casing is protected against submersion in water and dust according to IP68.

With a weight of 169 grams (~6 oz), it is not a very light device and despite the small screen size, it is not as small as the Apple iPhone 12 mini but rather resembles the Google Pixel 5.

Asus ZenFone 8
Asus ZenFone 8
Asus ZenFone 8
Asus ZenFone 8
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Size comparison

160 mm / 6.3 inch 74.2 mm / 2.92 inch 8.7 mm / 0.3425 inch 192 g0.4233 lbs151.7 mm / 5.97 inch 71.2 mm / 2.8 inch 7.9 mm / 0.311 inch 169 g0.3726 lbs148 mm / 5.83 inch 68.5 mm / 2.7 inch 8.9 mm / 0.3504 inch 169 g0.3726 lbs144.7 mm / 5.7 inch 70.4 mm / 2.77 inch 8 mm / 0.315 inch 151 g0.3329 lbs131.5 mm / 5.18 inch 64.2 mm / 2.53 inch 7.4 mm / 0.2913 inch 133 g0.2932 lbs

Features - Notification LED and jack connector

Asus does without a microSD card slot in the Zenfone 8. Instead, two SIM cards can be inserted that support VoLTE and VoWLAN. The USB-C port can transfer data with the USB 2.0 standard and a 3.5 mm jack is available for wired headsets. DRM Widevine L1 is also supported and the Camera2 API is available with Level 3.

A notification LED next to the charging port also informs about system events and shows the battery's state during charging.

Software - Pure Android on the Zenfone 8

Asus' Zenfone 8 runs a pure Android 11 with security patches as of April 5, 2021. However, Facebook, Instagram, Netflix, and Asus' Transfer app are some secondary or third-party apps, of which only the latter can be uninstalled.

Software Asus Zenfone 8
Software Asus Zenfone 8
Software Asus Zenfone 8
Software Asus Zenfone 8
Software Asus Zenfone 8
Software Asus Zenfone 8
Software Asus Zenfone 8
Software Asus Zenfone 8

Communications and GNSS - Fast WLAN meets 5G

Besides GSM, 3G and LTE, the Zenfone 8 can also establish mobile connections in 5G networks. Added to that are NFC, Bluetooth 5.2, and WiFi 6 for short-range communication.

High speeds are achieved with our reference router Netgear Nighthawk AX12, which is sufficient for the first place in our test field.

Networking
iperf3 Client (transmit) TCP 1 m 4M x10
Asus ZenFone 8
Adreno 660, SD 888 5G, 256 GB UFS 3.1 Flash
1261 (1192min - 1327max) MBit/s ∼100%
Apple iPhone 12 mini
A14 Bionic GPU, A14, 128 GB NVMe
792 (711min - 841max) MBit/s ∼63% -37%
Samsung Galaxy S21
Mali-G78 MP14, Exynos 2100 5G, 128 GB UFS 3.1 Flash
789 (613min - 870max) MBit/s ∼63% -37%
Samsung Galaxy S21
Mali-G78 MP14, Exynos 2100 5G, 128 GB UFS 3.1 Flash
500 (390min - 572max) MBit/s ∼40% -60%
OnePlus 9
Adreno 660, SD 888 5G, 256 GB UFS 3.1 Flash
685 (654min - 709max) MBit/s ∼54% -46%
Google Pixel 5
Adreno 620, SD 765G, 128 GB UFS 2.1 Flash
483 (479min - 493max) MBit/s ∼38% -62%
Average of class Smartphone
  (5.59 - 1599, n=286, last 2 years)
454 MBit/s ∼36% -64%
iperf3 Client (receive) TCP 1 m 4M x10
Asus ZenFone 8
Adreno 660, SD 888 5G, 256 GB UFS 3.1 Flash
903 (446min - 918max) MBit/s ∼100%
Samsung Galaxy S21
Mali-G78 MP14, Exynos 2100 5G, 128 GB UFS 3.1 Flash
778 (678min - 837max) MBit/s ∼86% -14%
Samsung Galaxy S21
Mali-G78 MP14, Exynos 2100 5G, 128 GB UFS 3.1 Flash
650 (249min - 792max) MBit/s ∼72% -28%
OnePlus 9
Adreno 660, SD 888 5G, 256 GB UFS 3.1 Flash
777 (623min - 829max) MBit/s ∼86% -14%
Google Pixel 5
Adreno 620, SD 765G, 128 GB UFS 2.1 Flash
625 (521min - 652max) MBit/s ∼69% -31%
Apple iPhone 12 mini
A14 Bionic GPU, A14, 128 GB NVMe
578 (496min - 596max) MBit/s ∼64% -36%
Average of class Smartphone
  (15.5 - 1414, n=286, last 2 years)
449 MBit/s ∼50% -50%
0701402102803504204905606307007708409109801050112011901260446918901884898894914914911910910902892907907908905908911907901901886905892890896892895897446918901884898894914914911910910902892907907908905908911907901901886905892890896892895897119212701272125812301279120912841274125212711263129812761260122712541209127613031291128412431236119412331283131012671327Tooltip
; iperf3 Client (receive) TCP 1 m 4M x10; iperf 3.1.3: Ø887 (446-918)
; iperf3 Client (transmit) TCP 1 m 4M x10; iperf 3.1.3: Ø1261 (1192-1327)
GPS test indoors
GPS test indoors
Outdoor GPS test
Outdoor GPS test

Asus' smartphone can use GPS, GLONASS, BeiDou, Galileo, QZSS and NavIC to determine the location. We achieved a positioning accuracy of up to three meters (~10 feet) outdoors with the app "GPS Test".

On our obligatory bike tour, the track recorded with the Asus Zenfone 8 shows a smaller deviation than our reference device Garmin Edge 500 on long straights and curves.

GNSS - Asus Zenfone 8
GNSS - Asus Zenfone 8
GNSS - Asus Zenfone 8
GNSS - Asus Zenfone 8
GNSS - Asus Zenfone 8
GNSS - Asus Zenfone 8

Phone features and voice quality - High volume during calls

The Zenfone 8's telephony app allows direct access to recent calls and a numeric keypad. Another tab displays saved contacts. A high volume is possible during calls and background noise is reliably filtered out. Participants can also be understood clearly on both sides.

The VoLTE and VoWLAN features are also available, but no eSIM can be used. In addition, only the preferred SIM card can use 5G.

Cameras - Solid image quality

Front camera recording
Front camera recording
LowLight recording with night mode
LowLight recording with night mode

Asus equips the Zenfone 8 with a 64 MP main camera that takes close-ups with many details in the focus area. Colors look natural and our test subject is evenly lit. Panoramic pictures also show many details, but might look a bit too dark depending on the ambient light. When objects in the picture are brought closer with the software zoom, the level of detail decreases a bit, but the subject is still easily recognizable. Pictures taken in low-light conditions only show blurry details and pale colors.

A slightly better result is achieved with the night mode. Besides the main camera, the 12 MP IMX363 sensor is available for ultra-wide-angle shots, which is used in the Pixel 5 for the main camera. Colors look more vivid, but a slight graininess can be noticed on the entire picture. Various picture settings can also be adjusted manually via a Pro mode.

The front-facing camera also records pictures with 12 MP and shows many details as well as natural colors. A beautification mode can be applied in the camera app and the shutter speed can be adjusted manually. Video recordings made with the main camera offer a similar quality as shown in our test photos. An image stabilizer ensures a smooth picture and the quality can also be influenced in a professional mode. Possible resolutions are HD, FullHD with 30 and 60 fps, 4K with 30 and 60 fps, and 8K.

Image Comparison

Choose a scene and navigate within the first image. One click changes the position on touchscreens. One click on the zoomed-in image opens the original in a new window. The first image shows the scaled photograph of the test device.

Close upPanoramaUltra wide angleZoom (5x)LowLight

Our test image of the ColorChecker Passport shows that the camera of the Asus Zenfone 8 captures colors a bit too brightly under controlled lighting conditions. The chart displays many details, but shows a contrast weakness in the lower corners.

ColorChecker
14.1 ∆E
9.8 ∆E
12.6 ∆E
15.5 ∆E
13.4 ∆E
10.5 ∆E
7.6 ∆E
11.3 ∆E
12.8 ∆E
6.4 ∆E
10.3 ∆E
7.6 ∆E
6.1 ∆E
13.1 ∆E
13.4 ∆E
2.6 ∆E
11.1 ∆E
10.6 ∆E
5.7 ∆E
1.7 ∆E
9.1 ∆E
6.7 ∆E
4.4 ∆E
0.7 ∆E
ColorChecker Asus ZenFone 8: 9.04 ∆E min: 0.7 - max: 15.53 ∆E
ColorChecker
29 ∆E
46.8 ∆E
37.2 ∆E
35.9 ∆E
40.3 ∆E
53.8 ∆E
46.4 ∆E
33.4 ∆E
32.8 ∆E
28 ∆E
56.3 ∆E
56.5 ∆E
30.3 ∆E
44.9 ∆E
28.3 ∆E
64 ∆E
35.2 ∆E
41.6 ∆E
63.5 ∆E
63.9 ∆E
47.9 ∆E
35.9 ∆E
23.9 ∆E
13.4 ∆E
ColorChecker Asus ZenFone 8: 41.21 ∆E min: 13.38 - max: 64 ∆E

Accessories and warranty - protective case for Zenfone 8 included

The Zenfone 8 comes with a USB power adapter with a matching USB-C cable, a SIM needle, and a protective case made of rigid plastic.

Asus grants a warranty period of 24 months for the Zenfone 8.

Input Devices & Operation - Reliable InScreen Fingerprint Sensor

Google's GBoard is available for text input on the Zenfone 8. The touchscreen responds very directly to inputs and is also well suited for longer drag-and-drop movements.

An optical in-screen fingerprint sensor is also available for unlocking the smartphone, which responded very well to stored prints in our test. Face recognition can also be set up and used reliably.

Asus Zenfone 8 - Keyboard
Asus Zenfone 8 - Keyboard
Asus Zenfone 8 - Keyboard
Asus Zenfone 8 - Keyboard

Display - Bright AMOLED screen

Subpixel
Subpixel

The screen of the Asus Zenfone 8 consists of a 5.92-inch AMOLED panel and offers a resolution of 2400 x 1080 pixels. The average brightness is a maximum of 759 cd/m² and reaches 1,007 cd/m² in the APL50 test. However, only 425 cd/m² are achieved without an enabled ambient light sensor.

For brightness levels below 45 percent we measure PWM in a frequency range between 160.8 and 459 Hz. From 27 to 64 percent, the frequency range narrows to 454.2 to 520.8 Hz. Above 64 percent, we only notice the refresh rate of 120 Hz. There is an entry "DC dimming" in the display menu, but it has no function.

PWM under 45 brightness
PWM under 45 brightness
PWM from 45 percent brightness
PWM from 45 percent brightness
PWM / refresh rate above 74 percent Brightness
PWM / refresh rate above 74 percent Brightness
753
cd/m²
757
cd/m²
761
cd/m²
755
cd/m²
758
cd/m²
759
cd/m²
757
cd/m²
760
cd/m²
768
cd/m²
Distribution of brightness
X-Rite i1Pro 3
Maximum: 768 cd/m² Average: 758.7 cd/m² Minimum: 2.38 cd/m²
Brightness Distribution: 98 %
Center on Battery: 758 cd/m²
Contrast: ∞:1 (Black: 0 cd/m²)
ΔE Color 3.5 | 0.59-29.43 Ø5.5
ΔE Greyscale 1.6 | 0.64-98 Ø5.7
99.9% sRGB (Calman 2D)
Gamma: 2.23
Asus ZenFone 8
AMOLED, 2400x1080, 5.92
Google Pixel 5
OLED, 2340x1080, 6.00
OnePlus 9
AMOLED, 2400x1080, 6.55
Samsung Galaxy S21
Dynamic AMOLED 2X, 2400x1080, 6.20
Apple iPhone 12 mini
OLED, 2340x1080, 5.40
Screen
8%
24%
9%
11%
Brightness middle
758
635
-16%
731
-4%
790
4%
623
-18%
Brightness
759
636
-16%
739
-3%
793
4%
623
-18%
Brightness Distribution
98
97
-1%
96
-2%
97
-1%
98
0%
Black Level *
Colorchecker DeltaE2000 *
3.5
0.8
77%
0.59
83%
2.2
37%
1
71%
Greyscale DeltaE2000 *
1.6
1.7
-6%
0.9
44%
1.6
-0%
1.3
19%
Gamma
2.23 99%
2.23 99%
2.243 98%
2.13 103%
2.21 100%
CCT
6527 100%
6492 100%
6573 99%
6497 100%
6258 104%
Colorchecker DeltaE2000 max. *
2.2
1.3
4.2
2.1

* ... smaller is better

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM detected 495 Hz ≤ 45 % brightness setting

The display backlight flickers at 495 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 45 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 495 Hz is relatively high, so most users sensitive to PWM should not notice any flickering. However, there are reports that some users are still sensitive to PWM at 500 Hz and above, so be aware.

In comparison: 52 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 17031 (minimum: 5 - maximum: 2500000) Hz was measured.

Besides the excellent contrast ratio of an OLED panel and the associated black value of 0 cd/m², the Zenfone 8 also displays colors with an extremely low deviation with the preloaded profile "Cinema".

In the settings menu, the color temperature can be adjusted manually with other pre-made profiles or a slider.

CalMAN - color fidelity (P3)
CalMAN - color fidelity (P3)
CalMAN - color space (P3)
CalMAN - color space (P3)
CalMAN - Grayscale (P3)
CalMAN - Grayscale (P3)
CalMAN - Saturation (P3)
CalMAN - Saturation (P3)

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
3.2 ms ... rise ↗ and fall ↘ combined↗ 1.6 ms rise
↘ 1.6 ms fall
The screen shows very fast response rates in our tests and should be very well suited for fast-paced gaming.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 3 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (23.8 ms).
       Response Time 50% Grey to 80% Grey
3.2 ms ... rise ↗ and fall ↘ combined↗ 2 ms rise
↘ 1.2 ms fall
The screen shows very fast response rates in our tests and should be very well suited for fast-paced gaming.
In comparison, all tested devices range from 0.8 (minimum) to 636 (maximum) ms. » 2 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (37.7 ms).

The brightness of the Asus Zenfone 8 is sufficient to display image content legibly outdoors even in direct sunlight.

Asus Zenfone 8 in outdoor use
Asus Zenfone 8 in outdoor use
Asus Zenfone 8 in outdoor use
Asus Zenfone 8 in outdoor use

The AMOLED panel of the Zenfone 8 is very viewing-angle stable and displays content even from flat angles without distorting them or distorting their colors.

Viewing angle stability
Viewing angle stability
Viewing angle stability
Viewing angle stability

Performance - Good performance and fast memory

The Asus Zenfone 8 shows a very good performance in our benchmarks. Results that affect the system performance are mostly slightly below the Samsung Galaxy S21 and slightly above the OnePlus 9. However, in graphics-heavy tests, the Apple iPhone 12 mini places itself ahead of our test device.

In the GFXBench, the achieved rates are lower than those of other smartphones with a Qualcomm Snapdragon 888 5G which can probably be attributed to cooling problems.

Geekbench 5.3
64 Bit Single-Core Score (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
1124 Points ∼70%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
598 Points ∼37% -47%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
1124 Points ∼70% 0%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
1003 Points ∼63% -11%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
1604 Points ∼100% +43%
Average Qualcomm Snapdragon 888 5G
  (989 - 1156, n=21)
1121 Points ∼70% 0%
Average of class Smartphone
  (58 - 1755, n=250, last 2 years)
601 Points ∼37% -47%
64 Bit Multi-Core Score (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
3385 Points ∼81%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
1635 Points ∼39% -52%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
3653 Points ∼87% +8%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
3228 Points ∼77% -5%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
4201 Points ∼100% +24%
Average Qualcomm Snapdragon 888 5G
  (3379 - 3810, n=21)
3599 Points ∼86% +6%
Average of class Smartphone
  (248 - 4914, n=250, last 2 years)
2039 Points ∼49% -40%
Vulkan Score 5.3 (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
5771 Points ∼88%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
923 Points ∼14% -84%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
3894 Points ∼60% -33%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
6524 Points ∼100% +13%
Average Qualcomm Snapdragon 888 5G
  (3894 - 6176, n=20)
4777 Points ∼73% -17%
Average of class Smartphone
  (72 - 6524, n=146, last 2 years)
2188 Points ∼34% -62%
OpenCL Score 5.3 (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
4676 Points ∼63%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
4566 Points ∼61% -2%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
7433 Points ∼100% +59%
Average Qualcomm Snapdragon 888 5G
  (3100 - 4764, n=20)
4582 Points ∼62% -2%
Average of class Smartphone
  (255 - 7514, n=148, last 2 years)
2273 Points ∼31% -51%
PCMark for Android - Work 3.0 (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
16428 Points ∼100%
Average Qualcomm Snapdragon 888 5G
  (11705 - 17085, n=15)
14724 Points ∼90% -10%
Average of class Smartphone
  (4436 - 17085, n=68, last 2 years)
9959 Points ∼61% -39%
3DMark
2560x1440 Sling Shot OpenGL ES 3.0 Unlimited (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
10379 Points ∼100%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
3915 Points ∼38% -62%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
7933 Points ∼76% -24%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
9134 Points ∼88% -12%
Average Qualcomm Snapdragon 888 5G
  (8257 - 11302, n=15)
10026 Points ∼97% -3%
Average of class Smartphone
  (149 - 11895, n=259, last 2 years)
4237 Points ∼41% -59%
2560x1440 Sling Shot OpenGL ES 3.0 Unlimited Graphics (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
15652 Points ∼75%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
4036 Points ∼19% -74%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
9889 Points ∼47% -37%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
20921 Points ∼100% +34%
Average Qualcomm Snapdragon 888 5G
  (10491 - 16863, n=15)
14739 Points ∼70% -6%
Average of class Smartphone
  (122 - 31940, n=259, last 2 years)
5444 Points ∼26% -65%
2560x1440 Sling Shot OpenGL ES 3.0 Unlimited Physics (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
4763 Points ∼99%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
3544 Points ∼74% -26%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
4688 Points ∼98% -2%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
3073 Points ∼64% -35%
Average Qualcomm Snapdragon 888 5G
  (3562 - 5344, n=15)
4792 Points ∼100% +1%
Average of class Smartphone
  (620 - 5784, n=257, last 2 years)
3019 Points ∼63% -37%
2560x1440 Sling Shot Extreme (ES 3.1) Unlimited (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
8779 Points ∼100%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
2964 Points ∼34% -66%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
0 Points ∼0% -100%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
6717 Points ∼77% -23%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
6462 Points ∼74% -26%
Average Qualcomm Snapdragon 888 5G
  (6110 - 9839, n=16)
8738 Points ∼100% 0%
Average of class Smartphone
  (91 - 9839, n=261, last 2 years)
3469 Points ∼40% -60%
2560x1440 Sling Shot Extreme (ES 3.1) Unlimited Graphics (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
11552 Points ∼99%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
2834 Points ∼24% -75%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
7680 Points ∼66% -34%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
9986 Points ∼85% -14%
Average Qualcomm Snapdragon 888 5G
  (7930 - 12914, n=16)
11691 Points ∼100% +1%
Average of class Smartphone
  (73 - 16221, n=261, last 2 years)
4031 Points ∼34% -65%
2560x1440 Sling Shot Extreme (ES 3.1) Unlimited Physics (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
4771 Points ∼100%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
3530 Points ∼74% -26%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
4668 Points ∼98% -2%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
2890 Points ∼61% -39%
Average Qualcomm Snapdragon 888 5G
  (2579 - 5366, n=16)
4723 Points ∼99% -1%
Average of class Smartphone
  (620 - 5793, n=261, last 2 years)
3051 Points ∼64% -36%
Wild Life Score (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
5767 Points ∼87%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
1015 Points ∼15% -82%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
5786 Points ∼87% 0%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
5815 Points ∼87% +1%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
6652 Points ∼100% +15%
Average Qualcomm Snapdragon 888 5G
  (3958 - 5942, n=20)
5653 Points ∼85% -2%
Average of class Smartphone
  (153 - 9680, n=114, last 2 years)
3027 Points ∼46% -48%
Wild Life Unlimited Score (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
5821 Points ∼75%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
1022 Points ∼13% -82%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
5751 Points ∼74% -1%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
5966 Points ∼76% +2%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
7806 Points ∼100% +34%
Average Qualcomm Snapdragon 888 5G
  (3959 - 5925, n=20)
5574 Points ∼71% -4%
Average of class Smartphone
  (174 - 11700, n=110, last 2 years)
3178 Points ∼41% -45%
Wild Life Extreme (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
1528 Points ∼67%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
448 Points ∼20% -71%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
2288 Points ∼100% +50%
Average Qualcomm Snapdragon 888 5G
  (1236 - 1559, n=15)
1503 Points ∼66% -2%
Average of class Smartphone
  (83 - 3080, n=62, last 2 years)
988 Points ∼43% -35%
Wild Life Extreme Unlimited (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
1512 Points ∼76%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
443 Points ∼22% -71%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
1982 Points ∼100% +31%
Average Qualcomm Snapdragon 888 5G
  (997 - 1555, n=15)
1417 Points ∼71% -6%
Average of class Smartphone
  (101 - 2864, n=59, last 2 years)
957 Points ∼48% -37%
GFXBench (DX / GLBenchmark) 2.7
T-Rex HD Onscreen C24Z16 (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
119 fps ∼100%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
45 fps ∼38% -62%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
61 fps ∼51% -49%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
110 fps ∼92% -8%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
60 fps ∼50% -50%
Average Qualcomm Snapdragon 888 5G
  (60 - 143, n=15)
103 fps ∼87% -13%
Average of class Smartphone
  (8.2 - 143, n=204, last 2 years)
61.7 fps ∼52% -48%
1920x1080 T-Rex HD Offscreen C24Z16 (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
238 fps ∼87%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
48 fps ∼17% -80%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
275 fps ∼100% +16%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
137 fps ∼50% -42%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
264 fps ∼96% +11%
Average Qualcomm Snapdragon 888 5G
  (173 - 290, n=15)
248 fps ∼90% +4%
Average of class Smartphone
  (4.3 - 417, n=204, last 2 years)
117 fps ∼43% -51%
GFXBench 3.0
on screen Manhattan Onscreen OGL (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
116 fps ∼97%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
30 fps ∼25% -74%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
60 fps ∼50% -48%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
119 fps ∼100% +3%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
60 fps ∼50% -48%
Average Qualcomm Snapdragon 888 5G
  (55 - 120, n=15)
92.3 fps ∼78% -20%
Average of class Smartphone
  (4.5 - 120, n=202, last 2 years)
49.3 fps ∼41% -57%
off screen Manhattan Offscreen OGL (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
152 fps ∼100%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
31 fps ∼20% -80%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
101 fps ∼66% -34%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
143 fps ∼94% -6%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
148 fps ∼97% -3%
Average Qualcomm Snapdragon 888 5G
  (101 - 177, n=15)
143 fps ∼94% -6%
Average of class Smartphone
  (1 - 229, n=203, last 2 years)
68.1 fps ∼45% -55%
GFXBench 3.1
on screen Manhattan ES 3.1 Onscreen (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
93 fps ∼88%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
21 fps ∼20% -77%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
57 fps ∼54% -39%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
106 fps ∼100% +14%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
60 fps ∼57% -35%
Average Qualcomm Snapdragon 888 5G
  (36 - 105, n=15)
70.9 fps ∼67% -24%
Average of class Smartphone
  (3.1 - 106, n=201, last 2 years)
38.4 fps ∼36% -59%
off screen Manhattan ES 3.1 Offscreen (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
105 fps ∼91%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
22 fps ∼19% -79%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
96 fps ∼83% -9%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
83 fps ∼72% -21%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
115 fps ∼100% +10%
Average Qualcomm Snapdragon 888 5G
  (69 - 121, n=15)
98.9 fps ∼86% -6%
Average of class Smartphone
  (1.4 - 151, n=201, last 2 years)
46.8 fps ∼41% -55%
GFXBench
on screen Car Chase Onscreen (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
53 fps ∼91%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
13 fps ∼22% -75%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
48 fps ∼83% -9%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
58 fps ∼100% +9%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
52 fps ∼90% -2%
Average Qualcomm Snapdragon 888 5G
  (26 - 61, n=15)
45 fps ∼78% -15%
Average of class Smartphone
  (3.3 - 61, n=200, last 2 years)
24.1 fps ∼42% -55%
off screen Car Chase Offscreen (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
61 fps ∼92%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
12 fps ∼18% -80%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
42 fps ∼64% -31%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
42 fps ∼64% -31%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
66 fps ∼100% +8%
Average Qualcomm Snapdragon 888 5G
  (42 - 72, n=15)
59.5 fps ∼90% -2%
Average of class Smartphone
  (1.8 - 96.6, n=200, last 2 years)
28.2 fps ∼43% -54%
Aztec Ruins Normal Tier Onscreen (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
57 fps ∼95%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
13 fps ∼22% -77%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
58 fps ∼97% +2%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
46 fps ∼77% -19%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
60 fps ∼100% +5%
Average Qualcomm Snapdragon 888 5G
  (32 - 73, n=20)
55.1 fps ∼92% -3%
Average of class Smartphone
  (1.5 - 73, n=267, last 2 years)
24.1 fps ∼40% -58%
1920x1080 Aztec Ruins Normal Tier Offscreen (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
64 fps ∼81%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
13 fps ∼16% -80%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
57 fps ∼72% -11%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
49 fps ∼62% -23%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
79 fps ∼100% +23%
Average Qualcomm Snapdragon 888 5G
  (46 - 87, n=21)
71 fps ∼90% +11%
Average of class Smartphone
  (0.95 - 257, n=267, last 2 years)
28.4 fps ∼36% -56%
Aztec Ruins High Tier Onscreen (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
41 fps ∼77%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
8.8 fps ∼17% -79%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
41 fps ∼77% 0%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
45 fps ∼85% +10%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
53 fps ∼100% +29%
Average Qualcomm Snapdragon 888 5G
  (25 - 46, n=20)
37.4 fps ∼71% -9%
Average of class Smartphone
  (1.2 - 60, n=268, last 2 years)
16.2 fps ∼31% -60%
2560x1440 Aztec Ruins High Tier Offscreen (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
26 fps ∼90%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
5.3 fps ∼18% -80%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
28 fps ∼97% +8%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
25 fps ∼86% -4%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
29 fps ∼100% +12%
Average Qualcomm Snapdragon 888 5G
  (19 - 32, n=20)
27.7 fps ∼96% +7%
Average of class Smartphone
  (0.35 - 101, n=268, last 2 years)
11 fps ∼38% -58%
Antutu v9 - Total Score (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
795730 Points ∼100%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
708280 Points ∼89% -11%
Average Qualcomm Snapdragon 888 5G
  (636471 - 815441, n=12)
774425 Points ∼97% -3%
Average of class Smartphone
  (121238 - 815441, n=59, last 2 years)
507660 Points ∼64% -36%
BaseMark OS II
Overall (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
6043 Points ∼92%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
3290 Points ∼50% -46%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
6537 Points ∼100% +8%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
6030 Points ∼92% 0%
Apple iPhone 12 mini
Apple A14 Bionic, A14 Bionic GPU, 4096
Points ∼0% -100%
Average Qualcomm Snapdragon 888 5G
  (5908 - 6959, n=15)
6507 Points ∼100% +8%
Average of class Smartphone
  (615 - 8124, n=190, last 2 years)
3829 Points ∼59% -37%
System (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
9973 Points ∼86%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
5960 Points ∼51% -40%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
11627 Points ∼100% +17%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
10530 Points ∼91% +6%
Average Qualcomm Snapdragon 888 5G
  (9696 - 11774, n=15)
10888 Points ∼94% +9%
Average of class Smartphone
  (1160 - 19657, n=190, last 2 years)
6951 Points ∼60% -30%
Memory (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
6300 Points ∼84%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
5381 Points ∼71% -15%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
7526 Points ∼100% +19%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
5924 Points ∼79% -6%
Average Qualcomm Snapdragon 888 5G
  (5352 - 9044, n=15)
7341 Points ∼98% +17%
Average of class Smartphone
  (522 - 9044, n=190, last 2 years)
4522 Points ∼60% -28%
Graphics (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
13167 Points ∼90%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
2560 Points ∼17% -81%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
12938 Points ∼88% -2%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
14636 Points ∼100% +11%
Average Qualcomm Snapdragon 888 5G
  (9399 - 15739, n=15)
13581 Points ∼93% +3%
Average of class Smartphone
  (349 - 25642, n=190, last 2 years)
6049 Points ∼41% -54%
Web (sort by value)
Asus ZenFone 8
Qualcomm Snapdragon 888 5G, Adreno 660, 16384
1612 Points ∼95%
Google Pixel 5
Qualcomm Snapdragon 765G, Adreno 620, 8192
1428 Points ∼84% -11%
OnePlus 9
Qualcomm Snapdragon 888 5G, Adreno 660, 12288
1627 Points ∼96% +1%
Samsung Galaxy S21
Samsung Exynos 2100 5G, Mali-G78 MP14, 8192
1448 Points ∼85% -10%
Average Qualcomm Snapdragon 888 5G
  (1434 - 1983, n=15)
1699 Points ∼100% +5%
Average of class Smartphone
  (10 - 2392, n=190, last 2 years)
1308 Points ∼77% -19%

In the browser benchmarks, the Zenfone 8 is only beaten by the Apple iPhone 12 mini in our test field. The achieved rates are nevertheless very good and can be seen by smoothly scrolling websites and fast availability of media content in everyday use.

JetStream 1.1 - Total Score
Apple iPhone 12 mini (Safari Mobile 14)
367.5 Points ∼100% +99%
Asus ZenFone 8 (Chrome 90)
184.49 Points ∼50%
Average Qualcomm Snapdragon 888 5G (119 - 210, n=14)
167 Points ∼45% -9%
OnePlus 9 (MS Edge)
119.23 Points ∼32% -35%
Samsung Galaxy S21 (Chrome 88.0.4324.152)
98.787 Points ∼27% -46%
Average of class Smartphone (10.8 - 414, n=188, last 2 years)
97.2 Points ∼26% -47%
Google Pixel 5 (Chrome 86.0.4240.110)
88.938 Points ∼24% -52%
WebXPRT 3 - ---
Apple iPhone 12 mini (Safari Mobile 14)
191 Points ∼100% +28%
Asus ZenFone 8 (Chrome 90)
149 Points ∼78%
Average Qualcomm Snapdragon 888 5G (103 - 166, n=13)
140 Points ∼73% -6%
OnePlus 9 (MS Edge)
119 Points ∼62% -20%
Samsung Galaxy S21 (Chrome 88.0.4324.152)
114 Points ∼60% -23%
Average of class Smartphone (20 - 252, n=194, last 2 years)
81.8 Points ∼43% -45%
Google Pixel 5 (Chrome 86.0.4240.110)
77 Points ∼40% -48%
Octane V2 - Total Score
Apple iPhone 12 mini (Safari Mobile 14)
57431 Points ∼100% +51%
Asus ZenFone 8 (Chrome 90)
37926 Points ∼66%
Average Qualcomm Snapdragon 888 5G (23491 - 46075, n=15)
34811 Points ∼61% -8%
Samsung Galaxy S21 (Chrome 88.0.4324.152)
25656 Points ∼45% -32%
OnePlus 9 (Chrome89)
23843 Points ∼42% -37%
Average of class Smartphone (1986 - 64222, n=202, last 2 years)
18944 Points ∼33% -50%
Google Pixel 5 (Chrome 86.0.4240.110)
18629 Points ∼32% -51%
Mozilla Kraken 1.1 - Total Score
Average of class Smartphone (414 - 29635, n=204, last 2 years)
3748 ms * ∼100% -168%
Google Pixel 5 (Chrome 86.0.4240.110)
2469.8 ms * ∼66% -77%
Samsung Galaxy S21 (Chrome 88.0.4324.152)
1809.6 ms * ∼48% -30%
OnePlus 9 (Chrome89)
1692.34 ms * ∼45% -21%
Asus ZenFone 8 (Chrome 90)
1397.2 ms * ∼37%
Average Qualcomm Snapdragon 888 5G (919 - 1841, n=15)
1368 ms * ∼36% +2%
Apple iPhone 12 mini (Safari Mobile 14)
459.6 ms * ∼12% +67%

* ... smaller is better

The UFS 3.1 storage installed in the Zenfone 8 offers 256 GB and achieves very good results in the storage benchmark. Thus, Asus' smartphone can lead our test field.

Asus ZenFone 8Google Pixel 5OnePlus 9Samsung Galaxy S21Average 256 GB UFS 3.1 FlashAverage of class Smartphone
AndroBench 3-5
-56%
-10%
11%
-3%
-53%
Sequential Read 256KB
1781.44
851.37
-52%
1872.3
5%
1647.8
-8%
1768 ?(1330 - 2037, n=24)
-1%
807 ?(41.9 - 2037, n=273, last 2 years)
-55%
Sequential Write 256KB
767.3
189.99
-75%
739.39
-4%
1095.35
43%
827 ?(552 - 1559, n=24)
8%
365 ?(11.9 - 1321, n=273, last 2 years)
-52%
Random Read 4KB
292.27
138.93
-52%
225.38
-23%
309.71
6%
252 ?(181 - 325, n=24)
-14%
142 ?(13.5 - 325, n=273, last 2 years)
-51%
Random Write 4KB
272.92
155.87
-43%
221.45
-19%
282.64
4%
258 ?(180 - 370, n=24)
-5%
132 ?(5.5 - 330, n=273, last 2 years)
-52%

Games - Smooth gaming possible without problems

The graphics unit Qualcomm Adreno 660 of the Zenfone 8 is well suited to run current games on smartphones with high detail levels. The titles we tested ran smoothly at all times and did not show any micro-stutters or the like.

Asphalt 9: Legends
Asphalt 9: Legends
Armajet
Armajet

Emissions - loud speakers in the Asus Zenfone 8

Temperature

According to our measurements, the Zenfone 8 heats up to 40.2 °C (104.36 °F) under load. The performance remains relatively stable even over a long period, which means that restrictions due to high temperatures are not to be expected.

3DMark
Wild Life Stress Test Stability
Asus ZenFone 8
Adreno 660, SD 888 5G, 256 GB UFS 3.1 Flash
92.3 (4802min - 5205max) % ∼100%
Wild Life Extreme Stress Test
Asus ZenFone 8
Adreno 660, SD 888 5G, 256 GB UFS 3.1 Flash
85.5 (1272min - 1488max) % ∼100%
Max. Load
 40.2 °C
104 F
39.2 °C
103 F
36.1 °C
97 F
 
 40.1 °C
104 F
39.7 °C
103 F
36 °C
97 F
 
 39.1 °C
102 F
39.2 °C
103 F
35.3 °C
96 F
 
Maximum: 40.2 °C = 104 F
Average: 38.3 °C = 101 F
34.6 °C
94 F
37.8 °C
100 F
38.5 °C
101 F
34.3 °C
94 F
37 °C
99 F
38.7 °C
102 F
32.6 °C
91 F
35.3 °C
96 F
37.9 °C
100 F
Maximum: 38.7 °C = 102 F
Average: 36.3 °C = 97 F
Power Supply (max.)  29.6 °C = 85 F | Room Temperature 22 °C = 72 F | Fluke t3000FC (calibrated) & Voltcraft IR-260
(-) The average temperature for the upper side under maximal load is 38.3 °C / 101 F, compared to the average of 32.9 °C / 91 F for the devices in the class Smartphone.
(±) The maximum temperature on the upper side is 40.2 °C / 104 F, compared to the average of 35.2 °C / 95 F, ranging from 22.4 to 52.9 °C for the class Smartphone.
(+) The bottom heats up to a maximum of 38.7 °C / 102 F, compared to the average of 33.8 °C / 93 F
(+) In idle usage, the average temperature for the upper side is 29.2 °C / 85 F, compared to the device average of 32.9 °C / 91 F.
Thermal image - top side
Thermal image - top side
Thermal image - bottom side
Thermal image - bottom side

Speaker

The dual speakers of Asus' smartphone achieve a relatively high volume and offer quite a wide sound spectrum. Thus, they are also suitable for consuming media content. However, headphones or external speakers are still recommended for music and in loud environments.

Asus also installs a 3.5 mm jack, which is very high-quality with an SNR value (signal-to-noise ratio) of 103.48 dBFS.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2028.330.72523.329.53120.324.3401919.95029.832.46317.220.78012.924.310019.437.312512.143.81601152.72009.547.725012.656.231513.661.540010.563.45001170.86309.774.180011.175.6100011.575.3125012.774.6160013.476.2200012.776.9250013.676.4315014.176.840001374.7500013.274630013.970.9800013.467.11000013.767.61250014.468.81600016.767.7SPL25.186.7N0.668.8median 13median 70.8Delta0.97.74346.236.838.436.82830.630.23435.52931.725.523.129.322.423.927.114.237.411.344.511.752.29.755.49.357.511.860.413.760.717.364.716.271.411.172.410.373.210.470.611.672.812.674.713.973.515.265.115.663.716.369.716.571.116.460.717.15368.865.971.426.48322.219.226.50.853.5median 13.9median 63.72.410.6hearing rangehide median Pink NoiseAsus ZenFone 8OnePlus 9
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Asus ZenFone 8 audio analysis

(+) | speakers can play relatively loud (86.7 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 20.9% lower than median
(±) | linearity of bass is average (13.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.4% away from median
(+) | mids are linear (3.8% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.7% away from median
(+) | highs are linear (2.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (14.4% difference to median)
Compared to same class
» 1% of all tested devices in this class were better, 1% similar, 98% worse
» The best had a delta of 12%, average was 24%, worst was 65%
Compared to all devices tested
» 15% of all tested devices were better, 4% similar, 81% worse
» The best had a delta of 3%, average was 20%, worst was 65%

OnePlus 9 audio analysis

(+) | speakers can play relatively loud (83 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 23.9% lower than median
(±) | linearity of bass is average (11.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.8% higher than median
(+) | mids are linear (5.1% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 6.3% higher than median
(+) | highs are linear (6.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (21.6% difference to median)
Compared to same class
» 33% of all tested devices in this class were better, 11% similar, 55% worse
» The best had a delta of 12%, average was 24%, worst was 65%
Compared to all devices tested
» 58% of all tested devices were better, 8% similar, 34% worse
» The best had a delta of 3%, average was 20%, worst was 65%

Battery life - 120 Hz display lowers endurance

Energy consumption

According to our measurements, the power consumption of the Asus Zenfone 8 is in the middle of our chosen test devices. Nevertheless, it is a frugal smartphone and shows a lower power requirement than other comparable smartphones.

The included charger offers an output power of 30 watts.

Power Consumption
Off / Standbydarklight 0.01 / 0.21 Watt
Idledarkmidlight 0.82 / 1.1 / 1.16 Watt
Load midlight 4.24 / 6.83 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Currently we use the Metrahit Energy, a professional single phase power quality and energy measurement digital multimeter, for our measurements. Find out more about it here. All of our test methods can be found here.
Asus ZenFone 8
4000 mAh
Google Pixel 5
4080 mAh
OnePlus 9
4500 mAh
Samsung Galaxy S21
4000 mAh
Apple iPhone 12 mini
2226 mAh
Average Qualcomm Snapdragon 888 5G
 
Average of class Smartphone
 
Power Consumption
28%
-58%
-47%
16%
-38%
-34%
Idle Minimum *
0.82
0.69
16%
0.9
-10%
1.1
-34%
0.62
24%
1.055 ?(0.46 - 1.8, n=18)
-29%
0.951 ?(0.37 - 2.5, n=218, last 2 years)
-16%
Idle Average *
1.1
0.82
25%
1.7
-55%
1.61
-46%
1.18
-7%
1.531 ?(0.74 - 2.6, n=18)
-39%
1.804 ?(0.65 - 3.94, n=218, last 2 years)
-64%
Idle Maximum *
1.16
0.85
27%
2.7
-133%
1.78
-53%
1.21
-4%
1.706 ?(0.78 - 3.1, n=18)
-47%
2.04 ?(0.69 - 4.2, n=218, last 2 years)
-76%
Load Average *
4.24
2.73
36%
5.4
-27%
6.47
-53%
2.1
50%
5.5 ?(4.21 - 6.44, n=18)
-30%
4.48 ?(2.1 - 8.4, n=218, last 2 years)
-6%
Load Maximum *
6.83
4.4
36%
11.1
-63%
10.12
-48%
5.71
16%
9.84 ?(5.89 - 11.7, n=18)
-44%
7.31 ?(3.56 - 12.3, n=218, last 2 years)
-7%

* ... smaller is better

Battery life

Asus' smartphone achieves a runtime of 7 hours and 22 minutes in our practical Wi-Fi test. Thus, it does not last as long as the rest of our test field despite a 4,000 mAh battery. However, a better runtime can be achieved with a dynamic setting of the refresh rate by the system or a fixed value of 90 or 60 instead of 120 Hz.

The smartphone is fully recharged after about one and a half hours with the included charger.

Battery Runtime
NBC WiFi Websurfing Battery Test 1.3
7h 22min
Asus ZenFone 8
4000 mAh
Google Pixel 5
4080 mAh
OnePlus 9
4500 mAh
Samsung Galaxy S21
4000 mAh
Apple iPhone 12 mini
2226 mAh
Battery Runtime
WiFi v1.3
442
808
83%
854
93%
544
23%
655
48%

Pros

+ robust housing with IP68 certification
+ bright 120 Hz display
+ good performance
+ compact design
+ fast WLAN

Cons

- short battery life
- no DC dimming

Verdict - A lot of performance in a compact format

In review: Asus Zenfone 8. Test device provided by: Asus Germany
In review: Asus Zenfone 8. Test device provided by: Asus Germany

Asus delivers a very compact and high-quality smartphone with the Zenfone 8. The system performance is very good, which is also reflected in a very smooth operation in everyday use. Besides very fast Wi-Fi and a bright AMOLED display, the new 5G mobile standard is also supported.

The 256 GB storage in our test configuration can also leave the competition behind, whereas the OnePlus 9 and the Google Pixel 5 are also well positioned. If you want an even smaller device with similar performance, it is also worthwhile to go for the Apple iPhone 12 mini.

The Asus Zenfone 8 offers a lot of performance in a high-quality and compact casing.

Even in the 128 GB version of the Zenfone 8, the missing microSD card reader should not be a big annoyance. However, the missing DC dimming button in the settings menu will definitely be a criterion for exclusion for sensitive users. The battery runtime is also quite low with an activated 120 Hz refresh rate. However, a significant improvement can still be achieved here with a dynamic setting.

Price and availability

The Asus Zenfone 8 is available now, for example, on Amazon with 8 GB RAM and 128 GB storage for 669 Euro, 8 GB RAM and 256 GB storage for 729 Euro and 16 GB RAM and 256 GB storage for 799 Euros (~$813, $887 and $972 respectively).

Asus ZenFone 8 - 06/02/2021 v7
Mike Wobker

Chassis
89%
Keyboard
65 / 75 → 87%
Pointing Device
96%
Connectivity
53 / 70 → 76%
Weight
91%
Battery
76%
Display
88%
Games Performance
66 / 64 → 100%
Application Performance
84 / 86 → 98%
Temperature
90%
Noise
100%
Audio
82 / 90 → 91%
Camera
70%
Average
81%
86%
Smartphone - Weighted Average

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Mike Wobker
Editor of the original article: Mike Wobker - Senior Tech Writer - 433 articles published on Notebookcheck since 2017
I carried out my first IT experiments with a 386-based system and a whole 4 MB RAM. This was followed by work on various PCs and laptops that I maintained and repaired for friends and acquaintances. After training to become a Telecommunications Systems Technician and gaining a few years of experience, I graduated with a Bachelor’s degree in Industrial Engineering. Currently, I pursue my fascination for IT, technology, and mobile devices by writing reviews and articles for Notebookcheck. I have also worked for Gamestar, Netzwelt, and Golem, among others.
contact me via: @mornoc_mw, Xing
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> Notebook / Laptop Reviews and News > Reviews > Asus ZenFone 8 smartphone in review: Compact and powerful
Mike Wobker, 2021-06- 7 (Update: 2021-06- 7)