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

Introduction

This is the OUKITEL K5000.

Hardware

Part of the K-series, that is the battery phone series of OUKITEL, this K5000 features a 5.7" HD+ (720x1440 18:9 aspect ratio) IPS screen that helps to reduce, even if only slightly, the size of the device, with a mid-range Mediatek MT6750T SOC, 4GB of RAM and 64GB of Storage. Everything is powered by a massive 5000mAh battery.

Unfortunately some weird choices have been made with this device for various parts of it, follow the next paragraphs to know more.

Unboxing

There are no many accessories included in the package unfortauntely: 1x Type-C USB Cable, 1x 5V/2A USB Charger, 1x Quick Guide, 1x Warranty Certificate, 1x SIM Card Tray Removal Tool, 1x Type-C to 3.5mm Headphone Jack, 1x TPU Case and the Smartphone (of course). A screen protector is already applied.

As you can clearly notice, the whole frame is made of Metal and feels solid, with a Plastic back cover (non-removable). Thanks to the rounded-corners, it is ergonomically more comfortable, but you can't expect miracles since it is still a bit thick and heavy, as you can read below.

Something i don't understand is the removal of the headphone jack, there is lots of wasted space. The device is thick enough to contain it. The same applies for the Speaker, it has been placed on the back when they could have fitted it on the lower side of the chassis with no issues at all. Pretty disappointing.

Thanks to the 18:9 aspect ratio and limited bezels, it is one of the most compact (excluding the thickness) battery phones i have ever reviewed, but due to its limited size, the weight isn't well-distributed thus it is really noticeable, at least for me that i don't have big hands: 15.21x7.28x1.10cm/220g.

Starting from the front side, there the so-declared 2.5D Asahi Glass that covers the IPS panel while the upper front side of the device features a Front-Facing camera supported by a small Flashlight, an Earpiece and the Sensors hole that includes Light and Proximity Sensors. No Notification LED is here.

On the lower front side there isn't anything at all. On-screen navigation keys are used instead of hardware buttons.

The back side features a glossy plastic surface that produces some nice light effects, something becoming almost a standard in the last few months, all devices i reviewed featured it. Fashion reasons? I don't know.

The upper rear side of the device features the Camera Sensor with a Dual-LED - Dual-Tone Flashlight, plus a Fingerprint Scanner just below it.

On the lower rear side there is the OUKITEL logo and the pretty-large Speaker hole.

Device

Screen

Something i really enjoy about this device is the screen. Even though its resolution isn't really high, only HD+ for a 5.7" surface, it is really sharp and the color accuracy is excellent. No color temperature issues neither high response-time. Definetely a thumbs-up for OUKITEL, great choice.

Also the light sensor works perfectly and the screen's maximum brightness is high-enough, ~396lux, sufficient for outdoor usage.

Viewing Angles are as good as you would expect from an high-quality IPS panel.

Camera

Unfortunately there are some problems with the camera. First of all, OUKITEL choose to use an outdated (but not bad to be honest) camera sensor (Sony IMX135) while for the Front Camera they choose a better, and newer, sensor from Samsung (ISOCELL S5K3P3SX). I don't understand this choice, it is logical to prefer the opposite :confused:

Anyway, the rear camera works as good/bad as on all other devices i tested with the same sensor, there isn't a really high amount of details even with lots of light available, and HDR helps a lot to get better photos. Color reproduction is just fine though, and if you decrease the ISO to its minimum (100), it is possible to get some better photos.

Some photos taken in different light conditions.

Macros look slightly blurry, but perfectly acceptable.

Thanks to the Dual-LED - Dual-Tone Flashlight, it is normal to except some great results, here is an example. It is powerful and doesn't mess with colors, just perfect. It's a pity to see such high-quality flashlight with this camera sensor.

Videos are recorded at 1080p30 with an overall stable frame-rate and acceptable quality, not the best neither the worst. You can't get anything better from this camera sensor.

I don't know if my front-camera sensor is faulty or if there is an issue with the software that probably handles the auto-focus mechanism, but as you can clearly notice, photos taken using the front-facing camera look almost 100% blurry.

Here is a focus-test pattern printed on a A4 paper and then used as example, the right side is completely messed up.

Audio

Sometimes placing the speaker on the rear provides some benefits since it is possible to use a bigger one without having to use any weird hack to fit it in the chassis. As a result, it is really powerful with some low-frequencies, neither it distorts too much at maximum volume. Still, it is not the ideal position.

Nothing to report about the Microphone and Earpiece, the quality is just fine. No issues noticed while in-call neither in recorded videos.

GPS

GPS Accuracy require some improvements, while the signal is high-enough and stable.

Indoors on the left, outdoors on the right.

Telephony, Mobile Network & WiFi

Provides full european 4G bands support (including Band 20), the device was able to stay connected to my mobile operator's 4G network almost everywhere, everytime, with a reasonably high signal but slightly lower than average connection speed.

The device supports 5.0GHz WiFi network, and the signal is excellent with no connection speed issues.

Battery Life

Believe it or not, but the battery capacity test is just impressive. OUKITEL declares a 5000mAh battery for the device, but, based on my test, it is way higher, reaching almost 5450mAh! Unbelievable. Before you ask me, yes this time has been done multiple times to be 100% sure. Well done OUKITEL!

Confirming the battery capacity, with my usual PCMark Battery Test it was able to obtain an excellent result: 16 hours & 8 minutes (minimum brightness, WiFi on, Sync on)

There must be a Mediatek Pump Express chargers cost-increase in the last few weeks, since all devices i tested with big batteries weren't including one. Odd. The included 5V/2A charger takes more than 3 hours to recharge the device completely, some patience required xD.

Software

I always enjoy to review devices that provide an almost-stock Android experience, and this one is no exception. OUKITEL is known to not customize the OS (except for some models released in the past), and this one comes with the Mediatek distribution of Android 7.0 Nougat featuring October's Security Patches. No bloatware is preinstalled, and the device runs pretty smooth with no noticeable lags or stuttering.

Most Mediatek "Goodies" such as MiraVision are there, but i wasn't able to find any gesture such as Double tap-to-wake and similar.

Thankfully all sensors have been included, Gyroscope and Magnetometer/Compass are there!

No malwares detected with Kaspersky Anti-Virus using latest definitions.

Excellent Fingerprint Scanner accuracy and acceptable unlock time. Also, it's shape is perfect, hard to place the finger in the incorrect position. Thumbs up for this implementation.

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