Teclast M20 4G Review

Buy Now

The Teclast M20 4G is a tablet very similar to the Chuwi Hi9 Air I reviewed, almost identical specs. Expect this one has an ever so slightly faster SoC, the MediaTek Helio X23 ten-core CPU vs the Helio X20 in the Hi9 Air. The Helio X23 has a slightly faster CPU clocked to 2.3Ghz and it’s Mali-T880 GPU is clocked to 780Mhz. As for RAM and storage, we get 4GB of LPDDR3, a 64GB eMMC 4.5.1 spec drive with reads of over 140MB/s and write of over 100 MB/s.

Video index: 01:06 – Unboxing 02:16 – Design & build 04:18 – Weight & thickness 05:14 – Android 06:24 – Screen 08:19 – eBooks & PDFs 08:43 – X23 & benchmarks 11:34 – Performance 12:37 – Audio & speaker test 13:23 – Battery & charge times 13:59 – Gaming 15:29 – Camera samples 16:15 – Final words 17:25 – Pros & Cons listed

The build of the M20 is decent for the price, solid with no chassis flex or creaking noises. The cover for the two micro SIM and MicroSD slots is hard to get off at first. Just push down from the MicroUSB slot. Yes, sadly there is no Type-C port here which it should have. The tablet comes with a 5 volt 2.5A charger and micro USB cable. It also has a pre-applied screen protector which I ended up removing completely as it had dust under it.

The Teclast M20 can clock a modest 100,000 score in Antutu, but like all Helio X chipsets, the Mali-T880 GPU is the weakness.

Feature wise the M20 4G offers a lot for the $160 launch price. Dual micro SIM LTE, with 4G bands B1/B3/B34/B38/B39/B40. MicroSD support and you don’t have to give up a SIM card for it either. The tablet can also make calls, just remember to put it into speakerphone if you don’t have a headset plugged in. It has an FM Radio tuner and even GPS. The screen is a vibrant IPS panel which can be customised with Miravision which allows you to tweak the saturation, colours and white balance. The resolution is 2560 x 1600 and the screen is covered with soda lime glass. Not scratch resistant and not fully laminated, there is a gap between the IPS and digitizer glass of approximately 2.5mm.

This means the screen is more reflective and its max output of only 205 lux means the screen is only good indoors and not in direct sunlight.

The ROM is stock Android 8.0 with no bloatware which is great. Even the security patch level is dated from August 2018 so it is recent. But like most sub $200 tablets, It might receive bugfixes via OTA, but I doubt this will ever get Android 9.0. As it stands after 3 days of use I’ve encountered no bugs on with the ROM. ROM speed is decent, once you multitask very heavily you’ll notice some slow down. Mostly when in split screen mode. But overall for the price, the performance is fine. Much better than the Chuwi Hi9 Pro with only 3GB of RAM.

DRM info reports as expected no level 1 support. So Netflix at a level 3 cert level will not run in HD, you’re limit to standard definition. There is also no HDMI on this tablet so you can’t connect it up to a TV. But Amazon Prime Video and YouTube at 1440p work flawlessly. Project treble support reports a negative, no access to system partitions A & B for seamless updates.

The 4G bands are limited but here in Spain, I’m lucky as my networks Yoigo & Orange use LTE band B1 & B3 so I can get on LTE without an issue. 4G Speeds are okay, but wireless AC speeds seem to be outstanding for a tablet at this price range. Normally they struggle to get over 100mbps, but I was able to get over 240 Mbps wireless AC router to tablet speeds.

GPS test and in the car shows the GPS works, but not amazing performance. It will see plenty of satellites but not use any of them and accuracy hovers around 4-5m. Due to the screens, 200 lux max and a non-laminated screen isn’t ideal for car GPS but could be used in a pinch.

GPS test Teclast M20 4G

GPS test Teclast M20 4G


Factoring the price as always the M20 4G offers a lot, a decent build, okay battery life of up to 7 hours, LTE dual SIM, phone calls, FM Radio and GPS. The screen is sharp and colorful but at the same time a little bit of a let down in terms of brightness and being non-laminated. The real weakness of this tablet is the gaming performance, like all the Helio X20, X23 and X27 tablets the Mali T880 GPU struggles rendering demanding games at 2560 x 1600, this GPU spec is better suited to 1920 x 1200 screens so games like PUBG and Lineage II will stutter and lag at times. But are at least still playable. Oh and the rear camera is downright terrible, but who would be recording video on it anyway?


Buy this Product$159.99 at Banggood



  • Great spec for the price
  • Solid build no body flex
  • Faster Helio X23 Vs X20
  • Decent eMMC 4.5.1 speeds
  • Great looking screen
  • Android 8.0 with no bloatware
  • August 2018 security update
  • Fast wireless AC
  • FM Radio & GPS
  • Can even make voice calls, send SMS


  • Screen isn't OGS, should be brighter
  • No HDMI output
  • Limited LTE band support
  • No ambient light sensor
  • Speakers should be louder
  • MicroUSB 2.0
  • Lags with demanding games
  • Very poor rear camera


Performance - 7.5
Build & Design - 8
Screen - 7.5
Sound - 6.5
Battery Life - 7.5

Lost Password