[Device Reviews and Information] Alberto96:
Review (part 1)

Introduction

NOTE: This review has been almost completely unified with the K6 review since, basically, they are exactly the same device just with a different body and battery. Hardware-wise, everything is identical.

This is the OUKITEL K10.

Hardware

Just a little white after the K6 release, this big brother K10 can be defined as the K6's big brother, just with a massive 11000mAh battery, a 5V/5A ultra-fast charger (similar to OnePlus Dash Charge technology) and packed in a plastic body, probably to save on weight. Other specs are identical to the K6.

Unboxing

Following the K6 package, this K10 features a similar set of accessories: 1x Type-C USB 3.0 Cable, 1x 5V/5A USB Charger (new gen of Pump Express?), 1x Type-C to Headphone Jack Dongle, 1x User Manual, 1x SIM Card Removal Tool, 1x Warranty Certificate, 1x Plastic Screen Protector, 1x OTG Cable, 1x TPU Cover and the Smartphone (of course). A screen protector is already applied.

As mentioned before, this K10 features a full-plastic body that, of course, doesn't provide the same solid feeling that a Metal chassis does, but it is well-made, no imperfections noticed and it is curved-enough for ergonomics. Something worth to be reported is the fact that it is really easy to leave some marks on the plastic, so i highly recommend to keep the TPU case even though it makes it even more bulky.

Unfortunately, the same design flaw about the USB connector is present on this K10 too, thus you need to use the included USB cable only to charge it properly, otherwise most other cables would not work. If interested, you need a pretty long USB-C connector in order to get a stable connection.

Well it is useless to discuss about its size and weight, a device with such a massive battery can't be slim neither light. It is 16.7x7.841x1.43cm with a weight of 290g. Hard to judge, this is the compromise to accept in order to get such a big battery.

On the upper front side there is pretty much everything you would need: Light/Proximity Sensors, Flashlight, Notification LED (RGB), Earpiece and Camera.

Also the Notification LED is exactly the same as on the K6, here is one of the colors it supports, but it is RGB.

On the lower front side there isn't anything at all.

As regards the back side, there is the plastic non-removable cover featuring a "leather" (doesn't feel real leather to me) pattern that adds some grip if used without any cover. I really like the shape used for the camera/fingerprint frame, even though it looks a bit not proper for such a stylish design. Odd.

The upper rear side of the device features the Camera Sensor with a Dual-LED - Single-Tone Flashlight on the left, and a Fingerprint Scanner just below.

An iconic OUKITEL logo on the lower back side ends the unboxing ^^.

Device (taken from the K6)

Screen

Compared to the MIX 2 5.99" 18:9 screen, the one used on the K6 is, in my opinion, not as good as i would have expected. Colors look slightly washed out even after some calibration using MiraVision, and i can notice a minor smearing effect while scrolling menus. It seems to be a common issue for this kind of rounded screens, since i found a similar issue on another device reviewed some weeks ago, so it might be a software issue or just a limit of this first gen of panels. Hopefully in the future this will only get better.

Nothing to complain about the light sensor, and the screen brightness is high enough for a sufficient visibility under direct sunlight.

The rounded corners do not seem to affect viewing angles at all, as good as they should be on a IPS panel.

Camera (taken from the K6)

Identical to the MIX 2, this K6/K10 features a Samsung 16MP rear camera sensor that, together with the new Helio P23 ISP (Image Signal Processor), does seem to provide some great shots. HDR works decently, and the amount of image noise is not too high, as long as the available light is high enough of course. An overall good result.

Also the Flashlight seems to work properly, no out-of-sync issues neither lack of light. Powerful enough, maybe a dual-tone variant would have been better.

Excellent results as regards the Camcorder. Videos are recorded in 1080p30 with a really stable framerate, no stuttering and high image quality. Currently the best Mediatek device ever tested in this area.

The front-camera sensor is, unfortunately, unknown (was not able to obtain the codename) but it should be an 8MP camera sensor interpolated to 13MP. Thanks to the Flashlight, it is possible to obtain some pretty decent shots even in low-light conditions. Pretty average quality.

Audio (taken from the K6)

It is pretty common for most smartphone to not feature a really powerful speaker, especially with latest models where, due to the bezels reduction, the space for a big chamber is slowly decreasing. This K6 is not exception. It doesn't feature a really loud speaker unit, but the sound is clean and there is a minor amount of low frequencies.

Unfortunately though, just like on the MIX 2, the Earpiece seem to produce a slightly distorted sound at highest volume. This is where the lack of a proper sound chamber is noticeable. Anyway, it is loud enough.

Nothing to complain about the Microphone, it is properly calibrated, and the lack of a secondary microphone does not seem to affect much the quality. Perfectly usable for calls and video recording.

GPS (taken from the K6)

Excellent results for the GPS. An high amount of satellites gets locked, even indoors.

Indoors on the left, outdoors on the right.

Telephony, Mobile Network & WiFi (taken from the K6)

The device is meant to be used with European Networks (Band 20 included), just like most Chinese devices that are sold with EU Plug chargers. As regards the signal, i was not able to find any issue or lack of network connection, and the speed test run on 4G confirms it. Not a bad result.

For some reason, Mediatek keeps providing a WiFi N-only card even for last-gen mid-range chipsets, thus there is no WiFi AC support on this device. Still, 5GHz WiFi N networks are perfectly working. Connected to my home network, the device is able to use my internet bandwidth completely.

Battery Life

Due to its battery design, it is kinda messy to measure the real capacity, so i am cycling the battery before measuring it with my USB Tester. Meanwhile, i disassembled the device in order to provide you some info about its battery cells. Technically it should contain 2 x 5050mAh cells in parallel, but i can't confirm it yet. Cells made by BAK, Serial Number shown in photo.

Considering the result obtained on the K6 (22 hours), 38 hours and 7 minutes based on the PCMark Battery Test might confirm the 11000mAh battery capacity. Test run at minimum brightness, Sync On, WiFi On.

Just like on the K6, this K10 features the same charging technology, but with an higher amperage to compensate the extra battery capacity, using a 5V/5A Charger. Still, based on my measurements, the device doesn't use more than ~4.2A, probably the cable is not able to handle so much current.

Software (mostly taken from the K6)

Different from previous devices reviewed in the past, this is the first one that comes with Android 7.1 instead of 7.0, probably due to the newer BSP provided by Mediatek for the Helio P23. Unfortunately it isn't Android 8.0 Oreo, but i guess it will be updated really soon.

The OS is clean, there is no bloatware pre-installed excluding a third-party keyboard that can be disabled, and it runs pretty smooth with no lags neither slow-downs.

Both K6 and K10 feature an NFC antenna, but again i can't test Android Pay here in Italy so...i need your user feedback about its compatibility. On the K6 it wasn't working at the time of the release but it has been fixed after a while, the same may happen for this K10.

All Mediatek Goodies such as MiraVision, Gestures (double-tap to unlock included) and others are included.

An extra feature has been included with this model: Face ID/Face Unlock. How does it work? It just uses the front facing camera to recognize your face, do not rely on it if you care about your device's security. Period (also clearly written in the warning).

Both Gyroscope and Magnetometer/Compass are present.

No malwares detected with Malware-Bytes Anti-Malware using latest definitions.

As regards the Fingerprint Scanner, it is really accurate, but slightly slow. Personally, i prefer accuracy more than speed, but if an OTA Update will be able to speed-up the reading process, it would be even better.

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