GT-888 is 4G capable smartphone powered by a 1.0 Ghz quad core MTK MT6735P SOC, which paired with the Mali-T720 GPU. It is the flagship product of GT Mobile, which this company is based in Singapore.

GT Mobile GT-888
GT Mobile GT-888

Before I go into the details of this phone, lets watch my video below, where I unbox this phone at a cafe.

There 2 variants of GT-888 available, the Silk White ones with 1GB RAM, and the Metal Grey with 2GB RAM.
Below is the tech spec provided at the GT Mobile website.

GT-888 Tech Specs
GT-888 Tech Specs

Chipset: SOC & GPU
As mentioned above, this phone is powered by a 1.0Ghz quad core MTK MT6735P SOC(a.k.a CPU), and it is paired with Mali-T720 GPU which clocked at 600MHz. According to MTK, MT6735P SOC are supposedly pairing with Mali-T720 GPU clocked on 400MHz, while Mali-T720 GPU clocked on 600MHz are suppose to pair with MT6735 instead.
However, this GT-888 look an approach to clock the Mali-T720 GPU clocking at 600MHz to work with its 5.5″ IPS OGS screen in order to support 720×1280 resolution at 320dpi, instead of 540×960 if clocking at 400MHz.
This SOC support full-mode base bands such as FDD/TDD/TD-SCDMA/WCDMA/CDMA2000 and GSM, therefore it enable the GT-888 to supports 3G,HSPDA,4G/LTE.

Connectivity: WiFI, Bluetooth, GPS, Hotknots, Mobile Bands
As stated at above, it does supports 3G,HSPDA,4G/LTE. Well, it also supports EDGE and GPRS of course. Please check on the table above for the exact band numbers it supports.
It supports dual SIM, 1 Micro SIM and 1 Nano SIM. Whichever SIM which you select as the primary SIM, you may set it to use 4g/LTE and the second SIM will automatically runs on GPRS, which is on GSM.
For wireless connectivity, it does supports 802.11 a/b/g/n, on both 2.4GHz and 5GHz. I am surprise that this phone still supports 802.11a, although its been a long time I never see any 802.11a access point exist anymore.
For Bluetooth, it is on 4.0. Which is pretty standards for smartphones nowadays.
For positioning, it is pretty standard, GPS, A-GPS, GLONAS, and Digital Compass.
One thing interesting about this phone is, the Hotknots. It is quite common on phones using MTK chipsets, which means you can use it to transfer data like how you use NFC, even with other brands of phones that powered by MTK chipsets. You may see the video clip below on my demonstration on how to use the Hotknots feature, which extracted from my wife’s gadget review video of this phone.

Graphics: Display, Cameras, Imaging Formats
For its display, I’ve mentioned above that it is using 5.5″ IPS OGS, protected with Corning Gorilla Glass 3.
Screen resolution of this phone is 720×1280 at 320dpi, powered by the Mali-T720 600Mhz GPU.
Although the official tech specs stated that the rear camera is 8mp, but in the camera software, I am able to set it to capture pictures with 13mp. I believe it is due to the lens and its software able to do pixel rearrangement, which is pretty much common on China made smartphones nowadays. IN other words, it is a 8mp lens that able to produce 13mp picture, but only noticeable on the slight broken pixels when you zoom in the pictures to maximum. Below are the links to 2 pictures I’ve taken using the phone on 13mp settings. You may inspect these 2 JPEG pictures quality and its EXIF data if you wish to.
Its front camera is 5mp, which it is sufficient to do selfie with beautify mode on.
Both rear and front camera equipped with LED flash.
Video recording using this phone’s default camera app, the format that it produced is 3gp, instead of MP4, AVI or MOV. It is quite a strange choice for a modern smartphone to have video output with this format, although its video stream codec is MPEG-4, 10-20 frames per second, 256 kbps bitrate and audio stream codec of the videos is MPEG-4 AAC, 48000 Hz sample rate, 12 kbps bitrate.
While the maximum resolution of the videos, can only goes up to 720p, instead of whats stated in the website saying 1080p, 2k and 4K. You may checkout the sample video recording below, which I had already maxed out the video recording setting on its default camera app.

Capacities: RAM, Storage, Battery Capacity+Charging
The RAM for this phone, there are 2 variants. The Silk White ones have 1GB RAM, while the Metal Grey ones have 2GB RAM. The one I get is the 2GB ones.
While the internal storage of this phone, both variants comes with 16GB internal flash. Usable storage size is 11.60GB, while the rest 4.4GB were partitioned to use by the Android OS.
As you can see below, /system has taken 2GB, / has taken 964.4M and /cache has taken 387.4M.

GT-888 Partitions
GT-888 Partitions

The battery that comes in the box, is 2550mAh/9.69Wh, and it is a 3.8v Lithium ion polymer battery.
I’ve been told that this phone is a fast charging phone, although I’m not sure which fast charging technology it is using. However, at my first charge, it took me more than 8 hours to have a full charge. Then from someone, I heard that I have to update the firmware first, then the fast charging will work. I have no idea why fast charging have to do with the firmware, but then again, I just try it out. I’m not sure if there are any difference or not, but after that, its charging speed is almost equivalent to my other phones, where all my phones are charged with a very high amperence charger. Perhaps at the beginning, the battery was totally blanked out, that’s why it took so long to charge at the first time.

Functionalities : Operating System, Features, Sensors
This phone is running on Android 5.1 Lollipop(64-bit), Android SDK version 22.
It is using a pretty new Linux kernel compare to a lot other phones on the market, which is Linux 3.10.65 kernel.
When access into the phone’s shell via adb, instead of a restricted user, you will be logged in as a root user. I would say this phone is pre-rooted, the only thing it lacks for obtaining root access for apps, is the “su” binary, which we can conveniently just remount the /system partition to read+write(“rw”) and push the “su” binary into /system/xbin/.

adb shell into GT-888
adb shell into GT-888

Feature wise, it is basically having most of the Android Lollipop features. A plus would be its gesture sensing feature, and double tap or slide up for activate the screen.
For the sensors that available on this phone, actually it has most of the essential sensors, like basic light sensor, proximity sensor, accelerometer, magnetic field sensor and orientation sensor.
Below screenshots are all the sensors detected using Antutu Benchmark, as well as other related information about the phone’s hardwares.
GT-888 Antutu System InfoGT-888 Antutu System InfoGT-888 Antutu System InfoGT-888 Antutu System InfoGT-888 Antutu System InfoGT-888 Antutu System InfoGT-888 Antutu System Info

Benchmark: Antutu Benchmark Score
As I am usually quite concern about the benchmark scoring, I had did the Antutu Benchmark test.
The total score I am able to get from this phone is 23822.
You may see the breakdown of each test scoring in the screenshots below.