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Verykool s5511 Juno Quatro Smartphone Review

A Veryhot deal? San Diego-based company offers a small range of affordable smartphones that should satisfy casual users on the go. The s5511 is a good alternative to mainstream brands and even offers one of the brightest displays on the market.

While there are now numerous inexpensive alternatives to the more popular smartphone brands, most of these alternatives are Chinese in origin including Xiaomi, ZTE, THL, and many others. As a result, customer service, compatibility with US networks, and sometimes quality can be hit or miss.

Verykool looks to fill in the gap with exceptional customer service and satisfaction as the brand is based right here in California. This essentially guarantees US buyers more reliable support and shipping as opposed to purchasing off of overseas online retailers.

Our first model from Verykool is the budget s5511 Juno Quatro, which carries an expansive 5.5-inch IPS display, 540 x 960 pixel resolution, MediaTek MT6582 SoC, 1 GB RAM, 4 GB ROM, dual SIM slots, and a microSD reader. The smartphone is also inexpensive at only $165 off-contract and competes directly against more commonly found Chinese brands. We take the s5511 for a quick spin to see if it is worth the price of admission.

Case

In terms of design, the s5511 is quite thin given the large form factor. The face is almost entirely screen space with just small portions of the bezel reserved for the earpiece and the dedicated Android keys. The corners and edges are curved and rounded off for a more comfortable grip and the back case is removable with different colors available. Compared to other 5.5-inch devices like the iPhone 6 Plus and LG G3, the Verykool lies right in between the two popular models in terms of size and thickness.

Case quality is plastic all-around as one would expect from a smartphone in this price category. There is no aluminum casing or glass protection as the phone arrives with a screen protector already on. Unfortunately, residual and very noticeable air bubbles remain underneath the screen protector, especially around the earpiece and camera. This makes an otherwise attractive front look cheap and "slapped on" at the last minute. Otherwise, the device feels surprisingly firm with no major depressions, twists, or creaking. It doesn't feel thick enough to survive a hard fall, however, so a protective case would still be a good idea for slippery hands.

Very thin chassis for a 5.5-inch smartphone
Very thin chassis for a 5.5-inch smartphone
Back cover is removable with green and black options
Back cover is removable with green and black options
A little over 1 mm thicker than the iPhone 6
A little over 1 mm thicker than the iPhone 6
158.1 mm / 6.22 inch 77.8 mm / 3.06 inch 7.1 mm / 0.2795 inch 172 g0.3792 lbs154 mm / 6.06 inch 78.7 mm / 3.1 inch 9.45 mm / 0.372 inch 199 g0.4387 lbs153.5 mm / 6.04 inch 78.6 mm / 3.09 inch 8.5 mm / 0.3346 inch 176 g0.388 lbs153.5 mm / 6.04 inch 77.3 mm / 3.04 inch 7.6 mm / 0.2992 inch 165 g0.3638 lbs150.4 mm / 5.92 inch 77.2 mm / 3.04 inch 8.5 mm / 0.3346 inch 157 g0.3461 lbs146.3 mm / 5.76 inch 74.6 mm / 2.94 inch 8.95 mm / 0.3524 inch 149 g0.3285 lbs
Benchmark Comparison Plugin: ERROR, Layout "0" not supported!

Connectivity

Interfaces include the standard micro-USB 2.0 port for charging and data transfers and 3.5 mm audio. The microSD reader supports up to 32 GB, but requires removal of the back cover in addition to the battery for physical access.

The s5511 supports external mice and keyboards as well as expected from the KitKat software.

Bottom: Microphone, micro-USB 2.0
Bottom: Microphone, micro-USB 2.0
Right: Power button, Volume rocker
Right: Power button, Volume rocker
Top: 3.5 mm audio
Top: 3.5 mm audio
Left: No connectivity
Left: No connectivity

Communication & GPS

Wireless connectivity includes 802.11 b/g/n with integrated Bluetooth and Miracast. We experienced no issues when connected to a standard home network, but range is a little shorter when compared to the LG G2. Connection becomes spotty after about 20 meters while our LG G2 was at least able to maintain a connection reliably, however weak it may be.

On the other hand, GPS on the Verykool is quick and is able to establish a fix quite rapidly without network assistance. In comparison, the LG G2 takes about a minute or so longer according to GPS Test.

LG G2 (5 m from WLAN source)
LG G2 (5 m from WLAN source)
LG G2 (~20 m from WLAN source)
LG G2 (~20 m from WLAN source)
Verykool s5511 (5 m from WLAN source)
Verykool s5511 (5 m from WLAN source)
Verykool s5511 (~20 m from WLAN source)
Verykool s5511 (~20 m from WLAN source)
LG G2 GPS Test
LG G2 GPS Test
Verykool s5511 GPS Test
Verykool s5511 GPS Test

Telephone & Speech Quality

Dual SIM slots and MicroSD
Dual SIM slots and MicroSD

The s5511 officially supports 2G Quad-band (850/900/1800/1900), 3G Dual-band (850/1900), and 4G HSPA+ through GSM networks, most notably AT&T, T-Mobile, Cellular One, Airfire, and H2O Wireless. 4G support is the takeaway message as many Chinese alternatives are not compatible with 4G bands in the US. Verykool also pride themselves with dual SIM support on all their smartphones, so the s5511 accepts both 2FF (mini-SIM) and 3FF (micro-SIM) cards. Unfortunately, there is no Wi-Fi calling as opposed to the similarly priced Sharp Aquos Crystal.

Call quality is good as we are able to hear the other end without any breaks or other major issues. Voices sound a bit more hollow and with moderate static, however, so the earpiece is not perfect. Unfortunately, the LG G2 caller on the other end experienced recurring stutters that made it hard to understand exactly what we were saying through the s5511. Our reception with AT&T was at maximum during these tests.

Cameras

The front (2 MP) and rear (8 MP) cameras take decent pictures with minimal purple fringing and blurring that are all too common on budget or low MP cameraphones. At the same time, however, colors are inaccurate and lacking in detail. Images look a little overexposed as well, though other cameraphones like the flagship LG G2 suffer from the same issues to a lesser degree. Otherwise, the s5511 includes anti-flicker, face detection, HDR, and ISO (100 to 1600) features.

Video will record up to 720p at 18 frames per second and files are saved as .3gp. Quality is acceptable outdoors with little motion, but there is moderate blurring and static when panning or under low ambient lighting. Processing feels quick, so there is little delay before movement appears onscreen.

LG G2 (13 MP)
LG G2 (13 MP)
Verykool s5511 (8 MP)
Verykool s5511 (8 MP)
Canon EOS Rebel XSi
Canon EOS Rebel XSi

Input Devices

Touchscreen

The 5-point capacitive touchscreen should work great in theory due to the relatively low screen resolution and large 5.5-inch display, but it falls flat on the s5511. The problem is that the screen is not particularly sensitive, so the user must press down somewhat slowly and firmly to register inputs reliably. Thus, keys that are near the edges of the display like "q", "a", and "p" are easily missed by quick typists. We find it much easier to text on the more accurate touchscreens of the iPhone 6 or LG G2 for this very reason despite these models having smaller displays.

Standard Android keyboard
Standard Android keyboard
Swype automatically enabled
Swype automatically enabled

Display

Though marketed as a qHD smartphone, the 5.5-inch screen here is a sub HD 540 x 960 resolution display for a pixel density of 200 PPI. This is compared to the 534 PPI of the LG G3, but to be fair this is also much more expensive than the s5511. The 5.5-inch Huawei Ascend G7 uses a more standard 720p resolution for a roughly 30 percent increase in pixel density compared to our Verykool model. In other words, icons and texts will appear larger and generally softer than on competing smartphones.

Perhaps the most surprising aspect of the s5511 is the bright backlight. At maximum brightness, the display reaches an average of about 640 nits, which is brighter than most popular and high-end smartphones. The Nexus 6, for example, barely reaches half of what the backlight of the s5511 is capable of. Contrast is also very impressive at over 1000:1. We double-checked our readings with a separate Gossen Mavo-Monitor in order to confirm our surprising results.

623
cd/m²
637.6
cd/m²
632.6
cd/m²
637.6
cd/m²
639.5
cd/m²
631.8
cd/m²
656.9
cd/m²
652.5
cd/m²
639.1
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 656.9 cd/m² Average: 639 cd/m²
Brightness Distribution: 95 %
Center on Battery: 639.5 cd/m²
Contrast: 1200:1 (Black: 0.533 cd/m²)
ΔE Color 9.6 | 0.6-29.43 Ø6
ΔE Greyscale 7.53 | 0.64-98 Ø6.2
Gamma: 1.83
verykool s5511
Mali-400 MP, MT6582, 4 GB Flash
Xiaomi Redmi Note 4G
Adreno 305, 400 MSM8928, 8 GB eMMC Flash
Apple iPhone 6 Plus
PowerVR GX6450, A8, 64 GB eMMC Flash
LG G3
Adreno 330, 801 MSM8974AC, 16 GB eMMC Flash
Sony Xperia Z3
Adreno 330, 801 MSM8974AC, 16 GB eMMC Flash
Screen
-2%
3%
-22%
-9%
Brightness middle
639.5
446
-30%
519
-19%
417
-35%
702
10%
Brightness
639
418
-35%
496
-22%
395
-38%
671
5%
Brightness Distribution
95
87
-8%
90
-5%
89
-6%
90
-5%
Black Level *
0.533
0.47
12%
0.62
-16%
0.96
-80%
0.72
-35%
Contrast
1200
949
-21%
837
-30%
434
-64%
975
-19%
Colorchecker DeltaE2000 *
9.6
5.1
47%
3.67
62%
5.67
41%
8.92
7%
Greyscale DeltaE2000 *
7.53
5.93
21%
3.78
50%
5.66
25%
9.59
-27%
Gamma
1.83 120%
3.46 64%
2.42 91%
2.53 87%
2.75 80%
CCT
8355 78%
7350 88%
7327 89%
7741 84%
9408 69%
Color Space (Percent of AdobeRGB 1998)
59

* ... smaller is better

Color analyses with an X-Rite spectrophotometer reveal generally poor grayscale and color reproduction. Colors do improve at higher saturation levels, but only slightly. Even subjectively the colors do not appear as deep or detailed as on more mainstream smartphones. But for the average user, this shouldn't be an issue for day-to-day use.

Grayscale
Grayscale
Saturation Sweeps
Saturation Sweeps
ColorChecker
ColorChecker

Due to the unusually bright display, the s5511 performs very well outdoors and under direct sunlight where most smartphone screens tend to become washed out. The glossy screen is not too much of an issue assuming maximum backlight brightness.

Bright display great for use outdoors
Bright display great for use outdoors
Viewing angles Verykool s5511
Viewing angles Verykool s5511

Viewing angles are excellent as expected from an IPS display. Colors do not significantly degrade or invert if viewing from extreme angles and when combined with the large display, the s5511 is easy to share with adjacent viewers for photos or video playback.

Performance

The quad-core MediaTek MT6582 SoC is common on many budget devices, especially those from Chinese manufacturers like the Vphone I6, Huawei Ascend G730, and THL 4000. All four cores are capable of running at the rated 1300 MHz speed, but can independently idle or underclock to 600 MHz to save power. In general, users can expect raw CPU and GPU performance to be on par with the 3 to 4 year old Nvidia Tegra 3. For more information and benchmarks on the MediaTek MT6582 SoC, see our dedicated page here.

CPU benchmarks place the s5511 alongside the THL 4000 as both share the same SoC, and just slightly below the Xiaomi Redmi Note 4G with its entry-level Snapdragon 400 SoC. SmartBench and Quadrant show similar results to the HTC One X+ and its Tegra 3 APU, though raw performance favors the s5511 in LinPack. For the sake of comparison, the high-end Snapdragon 805 and Apple A8 are at least 2x or even 6x faster in raw power than the MediaTek core in the s5511.

3DMark for Android
3DMark for Android
PCMark for Android
PCMark for Android
PassMark
PassMark
System information verykool s5511
Geekbench 3
32 Bit Multi-Core Score (sort by value)
verykool s5511
1152 Points ∼1%
Xiaomi Redmi Note 4G
1451 Points ∼2% +26%
Samsung Galaxy Note 4
3239 Points ∼4% +181%
Huawei Ascend G750
2454 Points ∼3% +113%
Apple iPhone 6 Plus
2874 Points ∼4% +149%
32 Bit Single-Core Score (sort by value)
verykool s5511
350 Points ∼7%
Xiaomi Redmi Note 4G
438 Points ∼9% +25%
Samsung Galaxy Note 4
1112 Points ∼23% +218%
Huawei Ascend G750
445 Points ∼9% +27%
Apple iPhone 6 Plus
1609 Points ∼33% +360%
Linpack Android / IOS
Multi Thread (sort by value)
verykool s5511
289.805 MFLOPS ∼10%
Samsung Galaxy Note 4
696.97 MFLOPS ∼24% +140%
Huawei Ascend G750
320.051 MFLOPS ∼11% +10%
Apple iPhone 6 Plus
1440.81 MFLOPS ∼49% +397%
HTC One X+
166.667 MFLOPS ∼6% -42%
Single Thread (sort by value)
verykool s5511
115.952 MFLOPS ∼11%
Samsung Galaxy Note 4
319.975 MFLOPS ∼31% +176%
Huawei Ascend G750
147.854 MFLOPS ∼14% +28%
Apple iPhone 6 Plus
766.2 MFLOPS ∼75% +561%
HTC One X+
56.759 MFLOPS ∼6% -51%
Smartbench 2012
Gaming Index (sort by value)
verykool s5511
2905 points ∼63%
Samsung Galaxy Note 4
4332 points ∼94% +49%
HTC One X+
2494 points ∼54% -14%
Productivity Index (sort by value)
verykool s5511
4324 points ∼23%
Samsung Galaxy Note 4
9732 points ∼52% +125%
HTC One X+
4907 points ∼26% +13%
AnTuTu v5 - Total Score (sort by value)
verykool s5511
19023 Points ∼19%
Samsung Galaxy Note 4
47172 Points ∼48% +148%
Apple iPhone 6 Plus
50360 Points ∼51% +165%
AndEBench
Java (sort by value)
verykool s5511
299 Iter./s ∼9%
Samsung Galaxy Note 4
862 Iter./s ∼26% +188%
Native (sort by value)
verykool s5511
6523 Iter./s ∼21%
Samsung Galaxy Note 4
19580 Iter./s ∼64% +200%
Quadrant Standard Edition 2.0 - --- (sort by value)
verykool s5511
7123 points ∼16%
Samsung Galaxy Note 4
22601 points ∼52% +217%
HTC One X+
7249 points ∼17% +2%
PassMark PerformanceTest Mobile V1
3D Graphics Tests (sort by value)
verykool s5511
722 Points ∼11%
Samsung Galaxy Note 4
1979 Points ∼31% +174%
Apple iPhone 6 Plus
1984 Points ∼31% +175%
2D Graphics Tests (sort by value)
verykool s5511
2546 Points ∼12%
Samsung Galaxy Note 4
3554 Points ∼17% +40%
Apple iPhone 6 Plus
2609 Points ∼12% +2%
Memory Tests (sort by value)
verykool s5511
1966 Points ∼0%
Samsung Galaxy Note 4
5263 Points ∼0% +168%
Apple iPhone 6 Plus
5147 Points ∼0% +162%
Disk Tests (sort by value)
verykool s5511
5362 Points ∼3%
Samsung Galaxy Note 4
34250 Points ∼17% +539%
Apple iPhone 6 Plus
23184 Points ∼12% +332%
CPU Tests (sort by value)
verykool s5511
10129 Points ∼1%
Samsung Galaxy Note 4
20164 Points ∼3% +99%
Apple iPhone 6 Plus
43696 Points ∼6% +331%
System (sort by value)
verykool s5511
2436 Points ∼11%
Samsung Galaxy Note 4
5857 Points ∼26% +140%
Huawei Ascend G750
0 Points ∼0% -100%
Apple iPhone 6 Plus
5622 Points ∼25% +131%
Vellamo 3.x
Metal (sort by value)
verykool s5511
733 Points ∼20%
Samsung Galaxy Note 4
1817 Points ∼49% +148%
Huawei Ascend G750
853 Points ∼23% +16%
Multicore Beta (sort by value)
verykool s5511
1216 Points ∼27%
Samsung Galaxy Note 4
1924 Points ∼43% +58%
Huawei Ascend G750
1562 Points ∼35% +28%
Browser (sort by value)
verykool s5511
1778 Points ∼23%
Samsung Galaxy Note 4
3472 Points ∼46% +95%
Huawei Ascend G750
1780 Points ∼24% 0%

Legend

 
verykool s5511 Mediatek MT6582, ARM Mali-400 MP, 4 GB Flash
 
Xiaomi Redmi Note 4G Qualcomm Snapdragon 400 MSM8928, Qualcomm Adreno 305, 8 GB eMMC Flash
 
Samsung Galaxy Note 4 Qualcomm Snapdragon 805 APQ8084, Qualcomm Adreno 420, 32 GB eMMC Flash
 
Huawei Ascend G750 Mediatek MT6592, ARM Mali-450 MP4, 8 GB SSD
 
Apple iPhone 6 Plus Apple A8, PowerVR GX6450, 64 GB eMMC Flash
 
HTC One X+ NVIDIA Tegra 3, NVIDIA GeForce ULP (Tegra 3), 64 GB SSD

System Performance

General system performance is moderately slow. Scrolling and zooming gestures are generally smooth, but there is a slight input delay before seeing the appropriate onscreen responses. For example, pressing the Home or Back button will almost always be met with a longer-than-usual delay, which makes us second guess ourselves if the button was even pressed at all. This is where high-end models take the crown as the s5511 simply takes longer to jump between applications with more frequent delays and frame skips. The browser-based benchmarks below show the Verykool smartphone falling behind more mainstream devices.

Our video playback tests on YouTube is smooth with no frame skip or audio delay issues. The drawbacks of the low screen resolution become very apparent here as videos appear blurry and are essentially limited to 360p or 480p. If loading the phone with videos, we recommend 480p or 720p .mov files for compatibility.

Sunspider
1.0 Total Score (sort by value)
verykool s5511
1586.5 ms * ∼17%
Xiaomi Redmi Note 4G
1207 ms * ∼13% +24%
Samsung Galaxy Note 4
955.6 ms * ∼10% +40%
Huawei Ascend G750
1490.3 ms * ∼16% +6%
Apple iPhone 6 Plus
347.4 ms * ∼4% +78%
0.9.1 Total Score (sort by value)
verykool s5511
1606.2 ms * ∼15%
Samsung Galaxy Note 4
900.8 ms * ∼9% +44%
Apple iPhone 6 Plus
361.8 ms * ∼3% +77%
HTC One X+
1028.2 ms * ∼10% +36%
WebXPRT 2013
Offline Notes (sort by value)
verykool s5511
2552 ms * ∼53%
Samsung Galaxy Note 4
1253.2 ms * ∼26% +51%
Apple iPhone 6 Plus
499 ms * ∼10% +80%
Stocks Dashboard (sort by value)
verykool s5511
2357.7 ms * ∼63%
Samsung Galaxy Note 4
1268.7 ms * ∼34% +46%
Apple iPhone 6 Plus
338 ms * ∼9% +86%
Face Detection (sort by value)
verykool s5511
2920 ms * ∼24%
Samsung Galaxy Note 4
1713.8 ms * ∼14% +41%
Apple iPhone 6 Plus
1463.2 ms * ∼12% +50%
Photo Effects (sort by value)
verykool s5511
1578.7 ms * ∼18%
Samsung Galaxy Note 4
980.7 ms * ∼11% +38%
Apple iPhone 6 Plus
904.7 ms * ∼10% +43%
Overall Score (sort by value)
verykool s5511
181 Points ∼8%
Samsung Galaxy Note 4
326 Points ∼14% +80%
Apple iPhone 6 Plus
604 Points ∼27% +234%
Mozilla Kraken 1.1 - Total Score (sort by value)
verykool s5511
15772.2 ms * ∼27%
Xiaomi Redmi Note 4G
12714 ms * ∼21% +19%
Samsung Galaxy Note 4
6127.4 ms * ∼10% +61%
Apple iPhone 6 Plus
4469.8 ms * ∼8% +72%
Google V8 Ver. 7 - Google V8 Ver. 7 Score (sort by value)
verykool s5511
2063 Points ∼11%
Samsung Galaxy Note 4
6442 Points ∼33% +212%
Apple iPhone 6 Plus
8604 Points ∼44% +317%
HTC One X+
2136 Points ∼11% +4%
Peacekeeper - --- (sort by value)
verykool s5511
588 Points ∼9%
Samsung Galaxy Note 4
852 Points ∼14% +45%
Huawei Ascend G750
698 Points ∼11% +19%
Apple iPhone 6 Plus
2613 Points ∼42% +344%
HTC One X+
667 Points ∼11% +13%
Browsermark
2.1 (sort by value)
verykool s5511
1063 points ∼3%
Samsung Galaxy Note 4
1478 points ∼5% +39%
Huawei Ascend G750
441 points ∼1% -59%
--- (sort by value)
HTC One X+
1723 points ∼24%
PCMark for Android - Work performance score (sort by value)
verykool s5511
1910 Points ∼10%
Samsung Galaxy Note 4
3914 Points ∼20% +105%

Legend

 
verykool s5511 Mediatek MT6582, ARM Mali-400 MP, 4 GB Flash
 
Xiaomi Redmi Note 4G Qualcomm Snapdragon 400 MSM8928, Qualcomm Adreno 305, 8 GB eMMC Flash
 
Samsung Galaxy Note 4 Qualcomm Snapdragon 805 APQ8084, Qualcomm Adreno 420, 32 GB eMMC Flash
 
Huawei Ascend G750 Mediatek MT6592, ARM Mali-450 MP4, 8 GB SSD
 
Apple iPhone 6 Plus Apple A8, PowerVR GX6450, 64 GB eMMC Flash
 
HTC One X+ NVIDIA Tegra 3, NVIDIA GeForce ULP (Tegra 3), 64 GB SSD

* ... smaller is better

Storage Devices

The internal 4 GB of storage space is very small as only about 2.45 GB is immediately available to the user for music, movies, apps, and other files. Luckily, the aforementioned microSD slot accepts cards up to 32 GB for much needed additional storage. Nonetheless, AndroBench reports respectable speeds for the internal SSD as read and write speeds are similar to more well-known models.

AndroBench 3-5
Random Write 4KB (sort by value)
verykool s5511
0.97 MB/s ∼0%
Xiaomi Redmi Note 4G
1.1 MB/s ∼0% +13%
Samsung Galaxy Note 4
3.14 MB/s ∼1% +224%
Huawei Ascend G750
0.9 MB/s ∼0% -7%
HTC One X+
0.62 MB/s ∼0% -36%
Random Read 4KB (sort by value)
verykool s5511
15.72 MB/s ∼7%
Xiaomi Redmi Note 4G
8 MB/s ∼4% -49%
Samsung Galaxy Note 4
19.87 MB/s ∼9% +26%
Huawei Ascend G750
12.06 MB/s ∼5% -23%
HTC One X+
9.99 MB/s ∼4% -36%
Sequential Write 256KB (sort by value)
verykool s5511
13.48 MB/s ∼2%
Xiaomi Redmi Note 4G
17 MB/s ∼3% +26%
Samsung Galaxy Note 4
38.91 MB/s ∼7% +189%
Huawei Ascend G750
15.29 MB/s ∼3% +13%
HTC One X+
13.45 MB/s ∼2% 0%
Sequential Read 256KB (sort by value)
verykool s5511
117.42 MB/s ∼7%
Xiaomi Redmi Note 4G
110 MB/s ∼6% -6%
Samsung Galaxy Note 4
178.77 MB/s ∼10% +52%
Huawei Ascend G750
58.28 MB/s ∼3% -50%
HTC One X+
36.88 MB/s ∼2% -69%

Legend

 
verykool s5511 Mediatek MT6582, ARM Mali-400 MP, 4 GB Flash
 
Xiaomi Redmi Note 4G Qualcomm Snapdragon 400 MSM8928, Qualcomm Adreno 305, 8 GB eMMC Flash
 
Samsung Galaxy Note 4 Qualcomm Snapdragon 805 APQ8084, Qualcomm Adreno 420, 32 GB eMMC Flash
 
Huawei Ascend G750 Mediatek MT6592, ARM Mali-450 MP4, 8 GB SSD
 
HTC One X+ NVIDIA Tegra 3, NVIDIA GeForce ULP (Tegra 3), 64 GB SSD

Gaming Performance

The low display resolution scales well to the old integrated ARM Mali-400 MP GPU. 3D titles off the Play Market run well at acceptable frame rates including N.O.V.A. 3. 3DMark places this smartphone alongside the budget LG L Bello and Lenovo IdeaPad A10 tablet. Generally speaking, any title playable on the old Tegra 3 will be playable here on the s5511. 2D games in particular work well with the large display size.

Epic Citadel
Epic Citadel
PCMark Ice Storm
PCMark Ice Storm
3DMark Ice Storm Standard Score
3244 points
Help

Emissions

Temperature

Idling surface temperatures are flat across the board on both sides of the device. Maximum load via the Stability Test app does raise temperatures by a noticeable margin, but this is unrealistic of everyday tasks. However, this does show that users may feel the left side of the smartphone (nearest the earpiece) become warmer than the right side after extended use or gameplay. Fortunately, the change in temperature is not enough to cause discomfort or stability issues.

Max. Load
 37.4 °C
99 F
34.2 °C
94 F
33 °C
91 F
 
 36.6 °C
98 F
34.2 °C
94 F
33.6 °C
92 F
 
 34.6 °C
94 F
33.8 °C
93 F
32.8 °C
91 F
 
Maximum: 37.4 °C = 99 F
Average: 34.5 °C = 94 F
33.2 °C
92 F
32.8 °C
91 F
35.2 °C
95 F
32.6 °C
91 F
33 °C
91 F
35.8 °C
96 F
32 °C
90 F
32.8 °C
91 F
34.6 °C
94 F
Maximum: 35.8 °C = 96 F
Average: 33.6 °C = 92 F
Room Temperature 21 °C = 70 F | Fluke 62 Mini IR Thermometer
(±) The average temperature for the upper side under maximal load is 34.5 °C / 94 F, compared to the average of 33.1 °C / 92 F for the devices in the class Smartphone.
(+) The maximum temperature on the upper side is 37.4 °C / 99 F, compared to the average of 35.5 °C / 96 F, ranging from 22.4 to 51.7 °C for the class Smartphone.
(+) The bottom heats up to a maximum of 35.8 °C / 96 F, compared to the average of 34 °C / 93 F
(+) In idle usage, the average temperature for the upper side is 26.7 °C / 80 F, compared to the device average of 33.1 °C / 92 F.

Speakers

Speaker avoids the "tin can" quality common on cheap devices
Speaker avoids the "tin can" quality common on cheap devices

The single speaker on the back of the s5511 produces good sound considering the price. Volume is loud with acceptable bass and little vibration for a smartphone. However, the maximum volume setting (or near maximum) can produce some residual and audible static, so it may be best to play at lower volumes or use earphones altogether.

Battery Life

Battery power is provided by a removable 2300 mAh Li-ion module. This is at least 600 mAh less than other 5.5-inch devices like the Huawei Ascend G750 (3000 mAh), iPhone 6 Plus (2915 mAh), LG G3 (3000 mAh), and the Xiaomi Redmi Note (3100 mAh). As a result, runtimes on the s5511 are notably shorter than these competing devices despite having less power-hungry internals. Nonetheless, 7 hours of constant WLAN use (at a brightness of 150 nits) should be sufficient for even the most arduous of workdays.

Battery Runtime
Idle (without WLAN, min brightness)
13h 42min
WiFi Surfing
6h 58min
Load (maximum brightness)
3h 22min
verykool s5511
Mali-400 MP, MT6582, 4 GB Flash
Xiaomi Redmi Note 4G
Adreno 305, 400 MSM8928, 8 GB eMMC Flash
Samsung Galaxy Note 4
Adreno 420, 805 APQ8084, 32 GB eMMC Flash
Huawei Ascend G750
Mali-450 MP4, MT6592, 8 GB SSD
Apple iPhone 6 Plus
PowerVR GX6450, A8, 64 GB eMMC Flash
Battery Runtime
18%
80%
53%
53%
Reader / Idle
822
985
20%
1668
103%
1436
75%
WiFi
418
662
58%
744
78%
638
53%
777
86%
Load
202
152
-25%
323
60%
199
-1%

Verdict

Verykool s551 Juno Quatro
Verykool s551 Juno Quatro

The Verykool s5511 is your standard budget smartphone with a couple of surprises. Firstly, we have to mention the extraordinarily bright display that bests nearly all mainstream smartphones and rivals even the flagship Sony Xperia Z3. This must have the brightest display of any budget smartphone currently available, which makes the s5511 ideal for use outdoors and under sunlight.

On the flip side, display quality is merely average despite the high brightness and contrast due to poor color reproduction and a low native resolution. Videos and icons are not very sharp compared to more standard 1080p or even 720p devices. Furthermore, the touchscreen itself could be more reliable; We find it easier and more accurate texting on the smaller LG G2 or iPhone 6 than on the larger s5511. If the touchscreen and resolution can be improved in the next iteration with added Wi-Fi calling, then this would automatically be an excellent bang for the buck.

GSM users looking for a large, inexpensive, and 4G-capable dual SIM solution for outdoor use will find the Verykool s5511 to be worth a look as it is quite thin and well-made considering the low $165 price point. 

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In Review: Verykool s5511. Test device provided by Verykool.
In Review: Verykool s5511. Test device provided by Verykool.

Specifications

verykool s5511
Graphics adapter
Memory
1024 MB 
Display
5.5 inch 9:16, 540 x 960 pixel, 5-point capacitive, IPS, glossy: yes
Storage
4 GB Flash, 4 GB 
, , 2.45 GB free
Connections
1 USB 2.0, Audio Connections: 3.5 mm, Card Reader: MicroSD, Sensors: Accelerometer, Ambient light sensor, Gyroscope, Magnetometer
Networking
802.11 b/g/n (b/g/n = Wi-Fi 4), Bluetooth 4.0
Size
height x width x depth (in mm): 8.5 x 150.4 x 77.2 ( = 0.33 x 5.92 x 3.04 in)
Battery
Lithium-Polymer, 2300 mAh, 3.7 V
Operating System
Android 4.4 KitKat
Camera
Webcam: Rear: 8 MP, Front: 2 MP
Additional features
Speakers: Monaural, Screen protector, warranty card, User's Guide, earphones, microUSB cable, AC adapter, cloth, additional back cover, verycool, 12 Months Warranty, 4G HSPA+ (21Mbps DL, 5.76 Mbps UL), 3G (850/1900) and 2G (850/900/1800/1900)
Weight
157 g ( = 5.54 oz / 0.35 pounds) ( = 0 oz / 0 pounds)
Price
145 Euro

 

5-point capacitive touchscreen
5-point capacitive touchscreen

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Links

  • Manufacturer's information

Compare Prices

Pros

+Large 5.5-inch IPS display
+Very bright backlight
+Dual SIM slots
+MicroSD up to 32 GB
+Removable battery
+Pre-rooted Android KitKat
+4G HSPA+ support
+Inexpensive
 

Cons

-Sub HD 540 x 960 resolution
-Relatively small battery capacity
-Low internal 4 GB ROM
-Touchscreen could be more responsive
-No CDMA support
-No Wi-Fi calling
-Low quality cameras
-Mixed voice quality

Shortcut

What we like

Inexpensive with 4G HSPA+ support and dual SIM

What we'd like to see

More accurate touchscreen and higher resolution with Wi-Fi calling. A faster processor for improved system performance

What surprises us

The bright display and good build quality

The competition

Apple iPhone 6 Plus

Huawei Ascend G7

LG G3

Samsung Galaxy Note 4

Xiaomi Redmi Note 4G

Rating

verykool s5511 - 02/11/2015 v4(old)
Allen Ngo

Chassis
72%
Keyboard
70 / 75 → 93%
Pointing Device
75%
Connectivity
35 / 60 → 58%
Weight
90%
Battery
90%
Display
75%
Games Performance
50 / 63 → 79%
Application Performance
20 / 70 → 29%
Temperature
90%
Noise
100%
Audio
75 / 91 → 82%
Camera
70%
Average
70%
77%
Smartphone - Weighted Average
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> Notebook / Laptop Reviews and News > Reviews > Archive of our own reviews > Verykool s5511 Juno Quatro Smartphone Review
Allen Ngo, 2015-02-11 (Update: 2015-02-11)
Allen Ngo
Allen Ngo - US Editor in Chief
After graduating with a B.S. in environmental hydrodynamics from the University of California, I studied reactor physics to become licensed by the U.S. NRC to operate nuclear reactors. There's a striking level of appreciation you gain for everyday consumer electronics after working with modern nuclear reactivity systems astonishingly powered by computers from the 80s. When I'm not managing day-to-day activities and US review articles on Notebookcheck, you can catch me following the eSports scene and the latest gaming news.