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Coolpad Porto S Smartphone Review

Marcus Herbrich (translated by Liala Stieglitz), 05/08/2016

Low-reflection. The new entry-level Porto S handset by the Chinese company Coolpad proves to be a serious opponent for the popular smartphones of its price range. In addition to the good total package, Coolpad's Porto S convinces with its bright, low-reflection IPS LC display in our tests.

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For the original German review, see here.

Following Coolpad's Modena, we now have another handset by the Chinese manufacturer Coolpad in review in the form of the Porto S. The LTE smartphone introduced in January this year has a 5-inch IPS HD screen with a resolution of 1280x720 pixels. A 64-bit quad-core processor by Mediatek, supported by an ARM Mali-T720 GPU and 1 GB working memory, powers Coolpad's Porto S. The Porto S is also configured with an 8 GB internal storage besides the non-removable 2000 mAh battery. The storage can be expanded by up to 64 GB via micro-SDXC card when required. In addition to the storage expansion, the hybrid slot serves as a slot for a second nano-SIM card.

The entry-level smartphone is available in dark-gray and white at a recommended price of 129 Euros (~$146) on the German market. The list of potential rivals is long in this price range. We use the rates of ZTE's Blade A452, Oukitel's K4000 Pro, LG's G4c and Microsoft's latest Lumia 550 entry-level handset for comparison in this test.

Coolpad Porto S
Processor
Mediatek MT6735 1.5 GHz
Graphics adapter
Memory
1024 MB 
Display
5 inch 16:9, 1280x720 pixel 294 PPI, multi-touch, LCD, IPS, glossy: yes
Storage
8 GB eMMC Flash, 8 GB 
, 4.2 GB free
Connections
1 USB 2.0, Audio Connections: 3.5 mm jack, Card Reader: micro-SD (max. 64GB), Brightness Sensor, Sensors: ambient light sensor, accelerometer
Networking
802.11 b/g/n (b/g/n), Bluetooth 4.0, LTE Band 20(800), 3(1800), 1(2100), 7(2600), 3G: 900/2100 MHz, 2G: 900/1800/1900 MHz, Dual SIM, LTE, GPS
Size
height x width x depth (in mm): 7.6 x 143 x 72 ( = 0.3 x 5.63 x 2.83 in)
Battery
2000 mAh Lithium-Polymer, Talk time 2G (according to manufacturer): 8 h, Talk time 3G (according to manufacturer): 7 h, Standby 2G (according to manufacturer): 200 h, Standby 3G (according to manufacturer): 150 h
Operating System
Android 5.1 Lollipop
Camera
Primary Camera: 8 MPix auto-focus, BSI sensor, f/2.4, release time: 0,5s, 720p HD photos
Secondary Camera: 2 MPix BSI sensor, f/2.4, 720p HD photos
Additional features
Speakers: mono, Keyboard: on-screen, headset, USB cable, modular power supply, user's guide, warranty card, COOLUI, 24 Months Warranty, SAR rate unkn., fanless
Weight
125 g ( = 4.41 oz / 0.28 pounds), Power Supply: 49 g ( = 1.73 oz / 0.11 pounds)
Price
129 Euro

 

Case

At 143 x 72 millimeters, Coolpad's 5-inch Porto S is relatively compact. Its weight of just 125 grams and its height of 7.6 millimeters contribute to decent handling. The screen is installed flush in the plastic casing. The materials selected for the Porto S make an overall good impression for this price range.

The edges around the screen are fairly wide in the entry-level handset - the black bars between the screen and display bezel are noticed unfavorably particularly in the white model. This is also reflected in the comparatively bad screen-surface ratio of 66.9% - that is only on par with an iPhone 6s.

The back cover cannot be removed. The slots for both cards are on the right under the power button. The latter and the two buttons for volume control on the left have a decent pressure point but wobble a bit. The casing's stiffness does not give reason for complaint. The handset defies both pressure and warping attempts.

Connectivity

As common in this price range, the internal eMMC storage (ROM) has a capacity of only 8 GB. The user only has about 4.2 GB of that available in delivery state. Although it can be expanded by up to 64 GB via micro-SDXC card, applications cannot be moved to the external storage (APP2SD). Coolpad has disabled this feature in the Porto S. The micro-USB 2.0 port on the lower edge only serves for recharging; it does not support OTG.

Software

The now over one-year-old Android 5.1 Lollipop operating system is preloaded on the Porto S. Its looks have been modified with the proprietary Cool UI launcher. Coolpad has not yet named a time frame for updating to the latest Android version 6 Marshmallow.

Cool UI version 8.0 is clearly based on Google's stock Android Interface - at least in the setting menus. Like other Chinese manufacturers, Coolpad does not use an app drawer. However, it is possible to create folders. In addition to proprietary applications, such as calendar or gallery, no bloatware is preloaded. Only Google's services are additionally installed. Some software features known from Coolpad's Modena (e.g. gesture control), are not present in the Porto S.

Communication & GPS

GPS signal outdoors
GPS signal indoors

Coolpad incorporates two slots for two SIM cards (micro and nano-SIM) in the Porto S. The handset connects to mobile Internet via LTE Cat. 4, which theoretically enables a maximum speed of 150 MBit/s (download) and 50 MBit/s (upload). Consequently, all relevant German frequency bands are covered. Transferring data via the nano-SIM is limited to GSM networks. The reception quality in a big city was good.

The entry-level handset connects to Wi-Fi via the 802.11 b/g/n standards. The reception is still satisfactory even at larger distances to the Wi-Fi router. The somewhat outdated Bluetooth version 4.0 is present for wireless connections with end devices. An NFC chip and Wi-Fi Direct are not part of the configuration.

The Porto S can be located via A-GPS and the global satellite navigation system GLONASS. We tested the GPS module's satellite connection performance via the GPS Test app. Outdoor tracking was quite fast with an accuracy of up to 8 feet (approx. 2.5 meters). The accuracy dropped to 25 feet (approx. 8.5 meters) indoors. We also tested the entry-level smartphone on an almost 11.6-kilometer route and compared the outcomes with Garmin's Edge 500 navigation device. The smartphone's performance is overall good for the price range. The devices only present a difference of 150 meters over the total route. Thus, our review sample is on par with current premium-range devices, such as Huawei's P9.


Coolpad Porto S
Coolpad Porto S
Coolpad Porto S
GPS Garmin Edge 500
GPS Garmin Edge 500
GPS Garmin Edge 500

Telephone & Call Quality

The voice quality during calls and video chats via the front camera is compelling. The contacts are well-intelligible; static noise or interruptions were not noticed in our review sample. Coolpad uses Google's application in Android 5.1 style for the phone app. The layout of the application's user interface is clearly arranged and tidy.

Phone app
Phone app

Cameras

In addition to HDR and Live Photo mode, the camera app of Coolpad's Porto S offers some settings options, such as Beauty and Smile mode or a picture-in-picture feature.

The BSI sensor of the rear-facing camera has a resolution of 8 megapixels (3264x2448 pixels). The aperture of f/2.4 leads to bright pictures that, however, suffer under visible image noise in our review sample. The quality is nevertheless still very good for an entry-level smartphone. The sharpness (test chart) and color reproduction are decent. High-detail and high-contrast photos are made in good light conditions (scene 1, surroundings). The auto-focus finds its limits in low light, and the photos display visible blurriness (scene 2, indoors). The release times in the test were comparatively slow in our opinion.

The front-facing camera is also furnished with a BSI sensor and f/2.4 aperture. The quality of the 2 MP camera lacking auto-focus is good, but the photos show weaknesses in sharpness reproduction. Videos can be recorded in 720p at 30 FPS with both the front and primary cameras.

Photo: front camera
Camera app
Camera app

Image Comparison

Choose a scene and navigate within the first image. One click changes the zoom step. 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.

Scene 1Scene 2Scene 3

Accessories & Warranty

The included accessories are made up of a headset, USB cable and modular power supply. Beyond that, the Porto S comes with an instruction manual and warranty card.

Coolpad includes a 24-month warranty on its product.

Input Devices & Handling

The capacitive touchscreen in the entry-level handset identifies up to 5 fingers simultaneously and offers good gliding traits. Inputs were implemented quickly and accurately. Google's stock virtual keyboard is preloaded ex-factory. The key layout is quite basic and clearly arranged. When preferred, other keyboard layouts are available via third-party suppliers in the Play Store.

Onscreen keyboard (portrait mode)
Onscreen keyboard (landscape mode)

Display

Subpixel grid

The 5-inch LC display in Coolpad's Porto S has a resolution of 1280x720 pixels, which equals a pixel density of 294 PPI. It is thus on par with the comparison handsets that also feature an HD resolution. The pixel density of the Porto S is theoretically below the "magic" mark of 300 PPI, but small fonts in text content still look sharp.

Although the measured maximum brightness of 418 cd/m² is average, it proves sufficient in routine use. An identical maximum brightness of 410 cd/m² in the image center (black level 0.5 cd/m²) results in the realistic APL50 test (average picture level) where dark and bright areas are distributed evenly. The screen in the Porto S achieves a rate of 401 cd/m² when the adaptive ambient light sensor for controlling the screen's brightness is enabled. The illumination of 92% is very homogeneous.

418
cd/m²
389
cd/m²
386
cd/m²
413
cd/m²
407
cd/m²
390
cd/m²
418
cd/m²
407
cd/m²
398
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 418 cd/m² Average: 402.9 cd/m² Minimum: 7.83 cd/m²
Brightness Distribution: 92 %
Center on Battery: 407 cd/m²
Contrast: 814:1 (Black: 0.5 cd/m²)
ΔE Color 7.9 | - Ø
ΔE Greyscale 8.9 | - Ø
Gamma: 2.46
Coolpad Porto S
Mali-T720, MT6735, 8 GB eMMC Flash
Oukitel K4000 Pro
, MT6735, 16 GB eMMC Flash
ZTE Blade A452
Mali-T720, MT6735, 8 GB eMMC Flash
LG G4c
Adreno 306, 410 MSM8916, 8 GB eMMC Flash
Microsoft Lumia 550
Adreno 304, 210 MSM8909, 8 GB eMMC Flash
Samsung Galaxy S7
Mali-T880 MP12, 8890 Octa, 32 GB UFS 2.0 Flash
Screen
5%
1%
10%
10%
38%
Brightness
403
367
-9%
411
2%
464
15%
535
33%
351
-13%
Brightness Distribution
92
89
-3%
83
-10%
92
0%
95
3%
98
7%
Black Level *
0.5
0.36
28%
0.65
-30%
0.49
2%
0.62
-24%
Contrast
814
1000
23%
686
-16%
980
20%
865
6%
Colorchecker DeltaE2000 *
7.9
9.01
-14%
6.29
20%
8.13
-3%
5.81
26%
2.04
74%
Greyscale DeltaE2000 *
8.9
8.67
3%
5.58
37%
6.73
24%
7.72
13%
1.63
82%
Gamma
2.46 98%
2.66 90%
2.04 118%
2.69 89%
2.18 110%
2.07 116%
CCT
8332 78%
7641 85%
7636 85%
7727 84%
8701 75%
6391 102%
Color Space (Percent of sRGB)
70.038
99.35
Color Space (Percent of AdobeRGB 1998)
86.86

* ... smaller is better

The black level of 0.5 cd/m² and determined contrast of 814:1 places the IPS panel on a good level. However, the Porto S presents weaknesses in color reproduction. The DeltaE shift of 7.9 (mixed colors) and 8.9 (grayscale levels) is above average. The gamma rate of 2.46 is also slightly increased (target rage: >2.2). Although the black level benefits from this, the visible shading decreases. Subjectively, the LC display's color reproduction slightly resembles an AMOLED panel, such as in Samsung's devices. The color temperature of 8332 K is clearly higher than the standard rate (6500 K), making colors look colder than in the original. The very visible bluish tint in the grayscale levels of the screen was not annoying in routine use.

CalMAN Colorspace (target color space: sRGB)
CalMAN Colorspace (target color space: sRGB)
CalMAN ColorChecker (target color space: sRGB)
CalMAN Saturation Sweeps (target color space: sRGB)
CalMAN Grayscale (target color space: sRGB)

Thanks to the IPS panel, the liquid crystal display presents very stable viewing angles. Colors do not deviate even in extreme viewing angles, but the screen darkens a bit. The smartphone is very impressive outdoors in bright ambient light and always remains sufficiently legible. The low-reflection screen can even cope with direct sunlight without creating significant reflections.

Screen legibility in sunny conditions
Screen legibility in overcast conditions
Viewing angles

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
46 ms ... rise ↗ and fall ↘ combined↗ 26 ms rise
↘ 20 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 97 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (26.9 ms).
       Response Time 50% Grey to 80% Grey
42 ms ... rise ↗ and fall ↘ combined↗ 18 ms rise
↘ 24 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 50 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (43.4 ms).

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 not detected

In comparison: 58 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 5083 (minimum: 43 - maximum: 142900) Hz was measured.

Performance

Unlike its other smartphones, Coolpad does not rely on CPUs by Qualcomm, but rather a Mediatek processor for the Porto S. The MT6735 is a mid-range ARM SoC (system on a chip) from 2014. It is built in 28 nanometers and has four 64-bit capable Cortex A53 CPU cores.

The quad-core processor can fall back on 1 GB of working memory, which results in a relatively smooth system performance in practice. System lags and stutters are primarily noticed during multitasking. As expected, the benchmarks present a similar performance as comparison devices based on the same SoC (MT6735). Only LG's G4c with Qualcomm's Snapdragon 410 is a bit stronger. The browser performance of the Porto S using the preloaded Google Chrome browser is not the fastest, but it is still satisfactory. Website content is loaded with a bit of delay.

The flash memory's speed is fast for the price range. Only Oukitel's K4000 Pro can keep up in the comparison field. However, massive differences are seen when comparing the access times of our review sample with those of our benchmark reference Samsung Galaxy S7, which is particularly evident when opening and closing apps.

AnTuTu Benchmark v6 - Total Score (sort by value)
Coolpad Porto S
25415 Points ∼11%
Oukitel K4000 Pro
24028 Points ∼11% -5%
ZTE Blade A452
25381 Points ∼11% 0%
Microsoft Lumia 550
25825 Points ∼11% +2%
Samsung Galaxy S7
127902 Points ∼56% +403%
Geekbench 3
32 Bit Multi-Core Score (sort by value)
Coolpad Porto S
1343 Points ∼4%
Oukitel K4000 Pro
1346 Points ∼4% 0%
LG G4c
1419 Points ∼5% +6%
32 Bit Single-Core Score (sort by value)
Coolpad Porto S
470 Points ∼10%
Oukitel K4000 Pro
481 Points ∼10% +2%
LG G4c
462 Points ∼10% -2%
64 Bit Multi-Core Score (sort by value)
ZTE Blade A452
1358 Points ∼4%
Samsung Galaxy S7
6401 Points ∼17%
64 Bit Single-Core Score (sort by value)
ZTE Blade A452
485 Points ∼10%
Samsung Galaxy S7
2199 Points ∼46%
3DMark
2560x1440 Sling Shot OpenGL ES 3.0 Physics (sort by value)
Oukitel K4000 Pro
604 Points ∼21%
ZTE Blade A452
0 Points ∼0%
Samsung Galaxy S7
2010 Points ∼69%
2560x1440 Sling Shot OpenGL ES 3.0 Graphics (sort by value)
Oukitel K4000 Pro
100 Points ∼1%
ZTE Blade A452
0 Points ∼0%
Samsung Galaxy S7
3018 Points ∼39%
2560x1440 Sling Shot OpenGL ES 3.0 (sort by value)
Oukitel K4000 Pro
123 Points ∼2%
ZTE Blade A452
0 Points ∼0%
LG G4c
53 Points ∼1%
Samsung Galaxy S7
2715 Points ∼55%
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
Coolpad Porto S
7413 Points ∼11%
Oukitel K4000 Pro
7370 Points ∼11% -1%
ZTE Blade A452
7568 Points ∼11% +2%
LG G4c
9195 Points ∼13% +24%
Samsung Galaxy S7
19944 Points ∼29% +169%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
Coolpad Porto S
2590 Points ∼1%
Oukitel K4000 Pro
2609 Points ∼1% +1%
ZTE Blade A452
2605 Points ∼1% +1%
LG G4c
3827 Points ∼1% +48%
Samsung Galaxy S7
33348 Points ∼7% +1188%
1280x720 offscreen Ice Storm Unlimited Score (sort by value)
Coolpad Porto S
3028 Points ∼2%
Oukitel K4000 Pro
3046 Points ∼2% +1%
ZTE Blade A452
3049 Points ∼2% +1%
LG G4c
4397 Points ∼2% +45%
Samsung Galaxy S7
29015 Points ∼15% +858%
GFXBench (DX / GLBenchmark) 2.7
1920x1080 T-Rex HD Offscreen C24Z16 (sort by value)
Coolpad Porto S
8.6 fps ∼1%
ZTE Blade A452
4.9 fps ∼0% -43%
LG G4c
5.2 fps ∼0% -40%
Microsoft Lumia 550
3 fps ∼0% -65%
Samsung Galaxy S7
84 fps ∼6% +877%
T-Rex HD Onscreen C24Z16 (sort by value)
Coolpad Porto S
4.8 fps ∼1%
Oukitel K4000 Pro
8.5 fps ∼2% +77%
ZTE Blade A452
8.4 fps ∼2% +75%
LG G4c
9.8 fps ∼2% +104%
Microsoft Lumia 550
5.24 fps ∼1% +9%
Samsung Galaxy S7
53 fps ∼12% +1004%
GFXBench 3.0
off screen Manhattan Offscreen OGL (sort by value)
Coolpad Porto S
3.6 fps ∼1%
Oukitel K4000 Pro
1.7 fps ∼0% -53%
ZTE Blade A452
1.6 fps ∼0% -56%
LG G4c
1.7 fps ∼0% -53%
Samsung Galaxy S7
40 fps ∼7% +1011%
on screen Manhattan Onscreen OGL (sort by value)
Coolpad Porto S
1.6 fps ∼1%
Oukitel K4000 Pro
3.5 fps ∼2% +119%
ZTE Blade A452
3.4 fps ∼1% +113%
LG G4c
4 fps ∼2% +150%
Samsung Galaxy S7
27 fps ∼12% +1588%
PCMark for Android - Work performance score (sort by value)
Coolpad Porto S
2893 Points ∼35%
Oukitel K4000 Pro
2757 Points ∼33% -5%
LG G4c
3199 Points ∼39% +11%
Samsung Galaxy S7
4826 Points ∼58% +67%
BaseMark OS II
Web (sort by value)
Coolpad Porto S
599 Points ∼39%
Oukitel K4000 Pro
563 Points ∼37% -6%
ZTE Blade A452
642 Points ∼42% +7%
LG G4c
571 Points ∼37% -5%
Microsoft Lumia 550
72 Points ∼5% -88%
Samsung Galaxy S7
957 Points ∼62% +60%
Graphics (sort by value)
Coolpad Porto S
173 Points ∼2%
Oukitel K4000 Pro
173 Points ∼2% 0%
ZTE Blade A452
174 Points ∼2% +1%
LG G4c
318 Points ∼4% +84%
Microsoft Lumia 550
190 Points ∼2% +10%
Samsung Galaxy S7
1723 Points ∼20% +896%
Memory (sort by value)
Coolpad Porto S
467 Points ∼11%
Oukitel K4000 Pro
409 Points ∼10% -12%
ZTE Blade A452
262 Points ∼6% -44%
LG G4c
373 Points ∼9% -20%
Microsoft Lumia 550
685 Points ∼16% +47%
Samsung Galaxy S7
2244 Points ∼52% +381%
System (sort by value)
Coolpad Porto S
905 Points ∼14%
Oukitel K4000 Pro
840 Points ∼13% -7%
ZTE Blade A452
916 Points ∼14% +1%
LG G4c
1054 Points ∼16% +16%
Microsoft Lumia 550
529 Points ∼8% -42%
Samsung Galaxy S7
4217 Points ∼64% +366%
Overall (sort by value)
Coolpad Porto S
458 Points ∼12%
Oukitel K4000 Pro
428 Points ∼12% -7%
ZTE Blade A452
405 Points ∼11% -12%
LG G4c
517 Points ∼14% +13%
Microsoft Lumia 550
265 Points ∼7% -42%
Samsung Galaxy S7
1987 Points ∼54% +334%
Mozilla Kraken 1.1 - Total Score (sort by value)
Coolpad Porto S
32901.1 ms * ∼55%
Oukitel K4000 Pro
18250.5 ms * ∼31% +45%
ZTE Blade A452
17651.6 ms * ∼30% +46%
LG G4c
14663.8 ms * ∼25% +55%
Microsoft Lumia 550
21884 ms * ∼37% +33%
Samsung Galaxy S7
2561.5 ms * ∼4% +92%
Octane V2 - Total Score (sort by value)
Coolpad Porto S
2088 Points ∼4%
Oukitel K4000 Pro
2200 Points ∼4% +5%
ZTE Blade A452
2348 Points ∼5% +12%
LG G4c
3085 Points ∼6% +48%
Microsoft Lumia 550
2170 Points ∼4% +4%
Samsung Galaxy S7
13161 Points ∼27% +530%
JetStream 1.1 - 1.1 Total Score (sort by value)
Coolpad Porto S
14.168 Points ∼4%
Oukitel K4000 Pro
13.445 Points ∼4% -5%
ZTE Blade A452
15.3 Points ∼5% +8%
Microsoft Lumia 550
13.006 Points ∼4% -8%
Samsung Galaxy S7
74 Points ∼22% +422%
AndroBench 3-5
Random Write 4KB (sort by value)
Coolpad Porto S
13.95 MB/s ∼9%
Oukitel K4000 Pro
7.5 MB/s ∼5% -46%
ZTE Blade A452
4.76 MB/s ∼3% -66%
LG G4c
1.3 MB/s ∼1% -91%
Samsung Galaxy S7
16.01 MB/s ∼11% +15%
Random Read 4KB (sort by value)
Coolpad Porto S
22.52 MB/s ∼13%
Oukitel K4000 Pro
13.79 MB/s ∼8% -39%
ZTE Blade A452
16.1 MB/s ∼9% -29%
LG G4c
10.49 MB/s ∼6% -53%
Samsung Galaxy S7
85.9 MB/s ∼50% +281%
Sequential Write 256KB (sort by value)
Coolpad Porto S
39.99 MB/s ∼19%
Oukitel K4000 Pro
39.82 MB/s ∼19% 0%
ZTE Blade A452
8.53 MB/s ∼4% -79%
LG G4c
7.49 MB/s ∼4% -81%
Samsung Galaxy S7
145.72 MB/s ∼71% +264%
Sequential Read 256KB (sort by value)
Coolpad Porto S
168.23 MB/s ∼21%
Oukitel K4000 Pro
191.29 MB/s ∼24% +14%
ZTE Blade A452
125.68 MB/s ∼16% -25%
LG G4c
112.94 MB/s ∼14% -33%
Samsung Galaxy S7
483.82 MB/s ∼61% +188%

Legend

 
Coolpad Porto S Mediatek MT6735, ARM Mali-T720, 8 GB eMMC Flash
 
Oukitel K4000 Pro Mediatek MT6735, , 16 GB eMMC Flash
 
ZTE Blade A452 Mediatek MT6735, ARM Mali-T720, 8 GB eMMC Flash
 
LG G4c Qualcomm Snapdragon 410 MSM8916, Qualcomm Adreno 306, 8 GB eMMC Flash
 
Microsoft Lumia 550 Qualcomm Snapdragon 210 MSM8909, Qualcomm Adreno 304, 8 GB eMMC Flash
 
Samsung Galaxy S7 Samsung Exynos 8890 Octa, ARM Mali-T880 MP12, 32 GB UFS 2.0 Flash

* ... smaller is better

Games

The ARM Mali-T720 GPU integrated in the Mediatek SoC is situated in the entry level. The graphics unit nevertheless allows playing current Android games, such as Real Racing 3 and Modern Combat 5, smoothly using reduced graphics settings.

Real Racing 3
Modern Combat 5

Emissions

Temperature

The idle temperatures on the surfaces increase to a maximum of 37 °C. The rates even climb up to 40.1 °C during load that we simulate using the Stability Test app (>1 hour). By comparison: The Lumia 550 is even warmer at 45.7 °C.

The increasing surface temperatures during load are palpable in routine use. However, the Porto S never gets unpleasantly hot.

Max. Load
 36.8 °C34.6 °C38.5 °C 
 39.5 °C35.9 °C39.4 °C 
 39.9 °C34.4 °C35.7 °C 
Maximum: 39.9 °C
Average: 37.2 °C
34 °C34.7 °C39.6 °C
34.3 °C38.6 °C40.1 °C
30.8 °C32.1 °C39.6 °C
Maximum: 40.1 °C
Average: 36 °C
Power Supply (max.)  36.3 °C | Room Temperature 21.8 °C | Voltcraft IR-260

Speaker

The rear-sided mono speaker in the Porto S offers a decent sound. It is also sufficiently loud at a maximum 84.9 dB(A). Mids to trebles are rendered well, but basses are hardly audible as is common for smartphones. The audio output sounds a bit tinny at maximum volume.

Pink Noise diagram

Energy Management

Power Consumption

In relation with the comparison field, the power consumption of the Porto S is low. It consumes considerably less energy than the ZTE Blade A452 and Oukitel K4000 Pro Android rivals in both load and idle states.

Power Consumption
Off / Standbydarklight 0 / 0.06 Watt
Idledarkmidlight 1.16 / 2.21 / 2.24 Watt
Load midlight 3.34 / 3.95 Watt
 color bar
Key: min: dark, med: mid, max: light        Gossen Metrahit Energy

Battery Runtime

The good power management is also reflected in the runtimes. The 2800 mAh battery lasted 8 hours and 24 minutes in our Wi-Fi test using a screen brightness set to 150 cd/m². Only ZTE's Blade A452 and Oukitel's K4000 Pro outclass this rate with considerably higher nominal outputs of >4000 mAh. The included 5-volt power supply needs approximately 2 hours to fully recharge the depleted battery (2 hours and 13 minutes).

Battery Runtime
WiFi Surfing v1.3
8h 24min
Coolpad Porto S
Mali-T720, MT6735, 8 GB eMMC Flash
Oukitel K4000 Pro
, MT6735, 16 GB eMMC Flash
ZTE Blade A452
Mali-T720, MT6735, 8 GB eMMC Flash
LG G4c
Adreno 306, 410 MSM8916, 8 GB eMMC Flash
Microsoft Lumia 550
Adreno 304, 210 MSM8909, 8 GB eMMC Flash
Samsung Galaxy S7
Mali-T880 MP12, 8890 Octa, 32 GB UFS 2.0 Flash
Battery Runtime
WiFi v1.3
504
711
41%
816
62%
457
-9%
445
-12%
456
-10%

Pros

+ bright, low-reflection panel
+ decent build
+ good entry-level camera
+ hybrid slot for 2nd SIM or SD card

Cons

- screen's grayscale and color reproduction
- price-range typical performance
- 8 GB ROM without APP2SD support
- 1 GB RAM
- Android 5.1 only

Verdict

In review: Coolpad Porto S. Review sample courtesy of Coolpad Germany.

In contrast to the recently tested Modena model, Coolpad has done many things right and only a few things wrong in its newest entry-level smartphone. The IPS panel's high aberrations in color and grayscale reproduction, the tight internal storage and the middling performance could be criticized. However, most if not all handsets from this price range have these shortcomings.

In return, the Porto S offers a bright, very low-reflection screen that remains legible even in direct sunlight. The build and battery life are on a good level and do not give much reason for complaint. The hybrid slot for a second nano-SIM or micro-SD card has to be noted favorably. Furthermore, the photos of the 8 MP camera are very appealing for a device from this price range.

However, the latest Android 6.0 operating system version would have been desirable in a model from 2016 - especially since an update seems uncertain.

Buyers looking for an affordable entry-level handset will not do much wrong with Coolpad's Porto S. The handset convinces with a decent price-performance ratio and balanced total package in the test.

Coolpad Porto S - 05/04/2016 v5.1
Marcus Herbrich

Chassis
76%
Keyboard
67 / 75 → 90%
Pointing Device
87%
Connectivity
37 / 60 → 62%
Weight
94%
Battery
91%
Display
81%
Games Performance
8 / 63 → 13%
Application Performance
27 / 70 → 39%
Temperature
88%
Noise
100%
Audio
63 / 91 → 69%
Camera
61%
Average
68%
81%
Smartphone - Weighted Average

Pricecompare

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> Notebook / Laptop Reviews and News > Reviews > Coolpad Porto S Smartphone Review
Marcus Herbrich, 2016-05- 8 (Update: 2016-05-10)