[Oukitel (All phone models)] Alberto96:
Review (part 1)

Introduction

This is the OUKITEL K6.

Hardware

Coming as the first Helio P23 device ever released on the market (correct me if i am wrong), this new K6 should be the successor to the K6000 Plus. It could be easily considered as the second flagship, together with the MIX 2, from OUKITEL since the specs are not bad at all. It comes with 6GB of RAM, 64GB of ROM an

d an huge 6300mAh battery.

Unboxing

Unlike the K8000 reviewed before, this K6 comes with a whole new packaging that also looks more premium, even inside. The amount of included accessories is still the same: 1x Type-C USB Cable, 1x 5V/3A USB Charger (not sure whether this is a Pump Express charger or not), 1x User Manual, 1x SIM Card Removal Tool, 1x Warranty Certificate, 1x OTG Cable, 1x TPU Cover and the Smartphone (of course). A screen protector is already applied.

The K6 doesn't feature anymore a full-metal chassis found on the K6000, but they choose to go with a plastic back cover (not-removable) instead. That's a pity because it is something that makes a device more premium. Anyway, the plastic cover doesn't seem to affects its solidity too much, even though i can notice some minor imperfections where the plastic touches the metal body. Also, i will never understand the need to remove the 3.5mm Headphone Jack on thick devices. There are just no valid reasons that would justify this, and i am not the only one to think the same.

As a battery phone with a 5.99" 18:9 screen and 6300mAh of battery, it is almost obvious to not expect a compact device. It is 15.8x7.61x1.08cm with a weight of 263g, really heavy considering the size. I don't understand why it is so heavy considering the plastic back cover.

This is probably one of the most complete devices i have ever reviewed, since it includes both Front Flashlight and Notification LED (RGB) on the upper front side while still keeping the reasonably thin bezel. Of course there is also a Front Camera, the Earpiece and Light/Proximity sensors.

Nothing to complain about the Notification LED, it is really bright and RGB.

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

As regards the back side, it features, as already said, a plastic non-removable cover with a nice-looking light effect. Still, it is plastic so expect to scratch it easily. I may recommend to use a screen protector also on the back in order to not ruin the effect.

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.

Just like most latest devices, there isn't anything important except the OUKITEL logo on the lower back side.

Device

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

Identical to the MIX 2, this K6 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

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

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

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

Starting from the Battery Capacity, i was not able to confirm the 6300mAh battery capacity declared by OUKITEL, instead i get a result of ~6090mAh. They declare a minimum of 6000mAh, but a typical of 6300mAh is definitely unrealistic considering it (it is usually ~100mAh higher from the min, not that much).

Battery Life is just outstanding compared to the previous gen Helio P20/25. The PCMark Battery Life test provided a result of 22 hours and 5 minutes, able to last at least two days of heavy usage (or one if you don't sleep...just kidding). Test run at minimum brightness, with WiFi on and Sync on.

OUKITEL seem to be really proud of the choice to use a 5V/3A charger (Pump Express 3?) for this device. They are not alone, OnePlus also uses a 5V charger with even higher current. Based on some testing made by external websites, this reduces the device temperature while keeping the charging speed high. Is it really making a difference compared to a standard up to 12V quick charger? Well, i was not able to notice that much difference as regards the charging speed, but the device felt noticeable cooler to the touch.

Software

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.

Something even more interesting about this K6 is the NFC Antenna. As far as i know, this is the first time OUKITEL implements this feature, so well done for this choice. Unfortunately i can't test Android Pay here in Italy so...i need your user feedback about its compatibility.

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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