Overall it feels much more expensive than the price dictates.
| Size: 6.3-inch|
Resolution: 2340 x 1080
Type: LTPS (low-temperature polysilicon)
| S-T-B-R: 92.7% claimed (83.7% measured)|
Colour depth: 16M
Brightness: 420 (claimed) tested 330
Contrast: 1500:1 (claimed) – tested under 1200:1
Colour gamut: Not specified but close to full sRGB if you use calibration software and MiraVision
Notch: top middle teardrop|
Screen protection: pre-fitted plastic film. Called scratch resistant
Reflectivity: It is quite reflective so limited for daylight use
The screen is clear and reasonably bright although favouring warmer colour tones.
LTPS allows higher pixel densities, higher refresh rates and lower power use over standard LCD screens. The minor drawback over an IPS screen is a lesser viewing angle and loss of saturation when viewed off-angle.
It has MiraVision (from MediaTek) that allows users to select Standard or Vivid modes or user adjustable. The latter allows control of contrast, saturation, brightness, sharpness, colour temperature, contrast, and reduce BluLight. I don’t mind that, but without professional calibration tools, you can make an awful hash of colours etc. Luckily there is a reset button!
It uses PWM (pulse width modulation) to adjust brightness. Given that you are going to use it a 100% brightness most of the time, there no perceptible flicker. You can use the BluLight reduction that makes colours even warmer.
In tests it did not reach 420nits, topping out at 330 nits. We suggest turning Auto brightness off because it is too aggressive towards battery saving.
Screen summary: The screen is well above what you expect for this price.
Mediatek MT6771V Helio P60, 12nm|
4×2.0 GHz Cortex-A73 & 4×2.0 GHz Cortex-A53
GeekBench 4 single/multi-core 1502/5206
Type: Mali-G72 MP3|
Video formats H.263/4/5 (decode), AVI, MKV, MP4, Xvid, WMV and more
RAM: 4GB LPDDR4X-1800 dual channel|
Storage: 128GB eMMC 5.1 (free 107GB)
OTG Support: Yes
Micro-SD card slot to 256GB VFAT (hybrid with sim 1)
The MediaTek Helio P60 is a mid-range competitor to the Qualcomm SD660.
In a mass-market phone, you would normally see a Qualcomm SD4XX competitor.
The idle speed brings all cores down to 793Mhz and as load ramps up four will jump up (Big.Little) style. Typical ARM
If there is a weakness, it is video performance – it is about 30% of the SD660 Adreno GPU. It should support most mobile games to 30fps.
Storage is eMMC 5.1, but it is slower than UFS 2.1 storage. Again it’s a price issue.
Summary: This is a good chip, and it is unusual to see it in a mass-market $279 device.
Wi-Fi AC, dual band 2.4 and 5GHz, 1×1 MIMO|
Wi-D Miracast, Hotspot
Bluetooth: 4.1 SBC
Wi-Fi N is a fact of life in the mass-market. Enter the UMIDIGI F1 with dual band Wi-Fi AC although it performs more like N due to a 1×1 antenna stream.
Signal strength at 2m from our D-Link reference router was 86Mbps (low) and -61dBm (strong). It held that to 10 metres and then swapped to 2.4GHz to about 30 metres. Overall its acceptable performance given its antenna design.
However, to put that in perspective, a Wi-Fi AC device like the Samsung Note9 will achieve 866Mbps (and up to 1.2Gbps) and signal strength of -35dBm.
NFC works well, e.g. Google Pay and is a rarity at this price.