Teclast T20 Review
- erictung1999
- Dec 29, 2018
- 5 min read

The market Android tablet it has almost lost all its vigor, although some major brands continue to produce new models. Over the years there has been a growing lack of interest, also due to the ever larger size of the displays mounted on smartphones. In fact, this factor has satisfied many people wishing to have a good experience with the multimedia sector, inevitably losing points in ergonomics. There are still several oriental companies, however, who believe in the sector and, with great commitment, try to carve out a slice of the market. Among these we find Teclast, which some time ago presented its new tablet low-cost, Teclast T20. The product has a good technical data and a design that, at least on paper, should not make you regret much more expensive devices: let's find out better in our review.
Specs:
Dimensions: 239 x 166.9 x 7.5 mm
Weight: 550g
Build: Aluminium alloy
Chipset: Media Tek Helia X27 (MT6797X)
CPU: 2600 MHz Single-core 0
GPU: ARM Mali-T880 MP4 875 MHz
Operating System: Android 7.1 Nougat
Memory: 4GB RAM
Storage: 64GB ROM
Expandable storage: Supported, microSD , microSDHC , microSDXC up to 256GB
Display type: IPS
Display size: 10.1 In , 256.54 mm , 25.65 cm (74.39% Screen To Body Ratio)
Screen resolution: 2560 x 1600 pixels
Wi-Fi support: 802.11a/b/g/n/ac, Wi-Fi Direct
Bluetooth support: A2DP
GPS support: GPS , A-GPS , GLONASS , BeiDou
USB: Type-C
Rear camera: 12.98MP Samsung
Front camera: 12.98MP
Battery: Li-Polymer 8100 mAh
Color: Silver
The packaging of this tablet is exactly the same as the Teclast Master T10, no changes here. Inside the box we have a SIM eject needle, a user manual, a USB Type-C cable and a power brick which is rated 9V 2A.

At the front of the tablet, we do have an IPS fully laminated panel, which has 2560 by 1600 resolution with an aspect ratio of 16:10. We also have a front facing camera at the top of the screen, that's 13MP sensor. Beside the camera we have an ambient light sensor. At the back you'll see there's a 13MP rear camera, an upgrade from previous Master T10 that's using 8MP camera. We do also have a very awkwardly located fingerprint reader at the back. The microphone is located at the bottom and there's two side firing speakers. This tablet can take two nano SIMs or one nano SIM with another microSD card (hybrid design). At the top we can see there's a power button, volume buttons, a 3.5mm jack and a Type-C port.




This 16:10 IPS panel, has a maximum brightness of 410 lux and that is good, considering it is a fully laminated display panel. There's a little bit of screen bleed at the side, but it is hardly to notice it. And then gamma of the panel checks out it's almost 2.2, which is not bad at all. The touch accuracy and responsiveness is also good. But the brightness adjustment is not good, even I set the brightness to the lowest setting, it is still way too bright for night use. Luckily it does have eye comfort and reading mode options, and since it's MediaTek powered tablet, it does have the MiraVision app that allows you to tweak the color settings.


Upon checking out the launcher, we can see that there's almost no bloatware inside the tablet at all, this is really good, but it doesn't have FM tuner app, which is weird compared to other MediaTek devices. The UI is smooth and the performance is good. One thing i don't understand is this tablet is shipped with Android 7.1.1 and the Android security patch level is still on July 5, 2017, although now is 2018.


Since we do have MediaTek Helio X27 with this tablet, so we are getting GPS feature in this tablet, and the accuracy is okay. It did take quite some time to get the first lock like around 1 minute or so. The 4G performance of this tablet is good, downloads are just okay but the uploads is quite fast. The wireless AC performance is also good. Excellent range and good throughput for this type of tablet.


As for the Antutu score for this tablet, it can reach around 110000 of score with this particular chipset. The internal storage speeds are also quite good considering the price of this tablet. It is using eMMC 4.5.1 spec and we do get around 230 MB/s of sequential reads and 100 MB/s of sequential writes. The fingerprint unlock performance is okay, not the fastest I've seen because it takes around 1 second or more to unlock your device.


The eBook performance of this tablet look good considering it has 299 pixel per inch, so the text on those files look pretty nice sharp. But when you skip through pages on PDF files very fast, it takes some time to catch up with the speed, and it never beats the performance of iPad. Typing on this tablet is great with the Google keyboard built in.

The YouTube playback performance on this tablet is good and it can run up to 1440p videos. It can also plays Amazon Prime and Netflix videos, just that Netflix will only run at standard definition because of the Widevine Level 3. For browsing, yes the performance is smooth and it can load up everything pretty quick, but not the smoothest compared to other better tablets out there. Depends on the app you are using, it actually supports split screen so maybe you can watch YouTube video and do some web browsing at the same time.


The audio quality seems okay, not the high quality speakers, and it seems that they've tweaked up the loudness of the speaker a little bit, and they've solved the problems of audio distortion during maximum volume on the previous Master T10. I did some voice calls and the quality is not really that great, but having calls with a headphone do improve the call quality.
For the battery life, you're looking for about 10 hours of light use with the 8100mAh battery built in. So if you just use it to watch YouTube videos or some web browsing, it would be okay. I tested it using 40% percent of brightness to watch videos and the battery percentage drops around 11% per hour, which is great, and you may able to extend the battery life too by lowering the screen brightness. To fully charge the battery, it just takes around 3 hours to fully charge it.

I'm pleased to say that PUBG is finally smooth and playable on a MediaTek Helio chipset device. The Helio X27 used on this device, performing much better than the previous chipsets. The frame rate is keeping up, it's a lot more fluid, a lot more smoother than the X20 or the X23.

The video recording quality in low-light with the front facing camera is so bad, it keeps dropping frames when recording. With the rear camera, it is also not really good. Some of the places in the video looks like over exposure a little bit, and it looks a little bit blurry. Your smartphones will definitely take a video that is better quality than this one.

Pros:
a. Great build quality
b. Now with 4G and voice call support
c. Thin build at 7.9mm and metal unibody
d. Very nice OGS Sharp IPS screen
e. Good touch response and accuracy
f. 4GB of RAM and fast eMMC for the spec
g. Very good wireless range and speeds
h. Stock bloat free ROM
i. Good battery life (7-10 hours)
j. Decent multitasking and performance overall
Cons:
a. Android 7.1.1 with dated security patch level
b. No HDMI out or via Type-C
c. Limited LTE bands, eg no LTE band 20
d. Speakers could be a little bit louder
e. Not the fastest fingerprint reader with an odd location
f. Screen should be darker on lowest setting, minor IPS bleed
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