- Edited
Recent phone tests:
Honor X7B - backlight felt harsh and uncomfortable, especially at lower brightness levels. Web text slightly difficult to read & stay focused/comprehend. The eye shifting/eye swimming sensation appears. However, no pwm symptoms noticed. Honor customer service have also confirmed the X7B uses DC dimming and is apparently "flicker free".
Redmi 12 5G - Same issue as the X7B. Backlight feels strange and odd, and not very eye friendly. Also difficult to stay focused when reading text. I can read a whole paragraph of an online web article, and not absorb any of it, and in some cases, completely forget what I've only just read moments ago. The display is very reflective, and this caused me to skim over webtext as opposed to actually read it. However, again, no pwm symptoms noticed. (Note: there is an anti flicker mode within the developer settings that can be activated).
Redmi 13c - Brief test in store - display felt nice and quite soft. However max brightness was low, and the performance was absolutely horrendously awful. Lags and stutters during general scrolling through the ui. Very bad ram management. Opened a few system apps, and all were immediately closed after opening another app, and they had to be reloaded. Baffled as to why an incapable processor such as the helio G85 is still being used in 2023/2024.
Nokia G42 5G - Very cold display, and no effective option to adjust color temperature. The G42 also suffers from the same harsh backlight issue. Uncomfortable. But no pwm type symptoms were noticed. The touch response of the display is hideous and often frustrating. Avoid.
Quick sum up:
Nxtpaper 40 4G - Uncomfortable and uses PWM
Nxtpaper 40 5G - Uncomfortable and uses PWM
Nokia G42 - Uncomfortable
Nord CE3 Lite 5G - Uncomfortable + eye strain
Moto G73 - Uncomfortable + eye strain
Moto G54 - Uncomfortable/Harsh
Honor X7B - Uncomfortable
Redmi 12 5G - Uncomfortable
Redmi 13C - Comfortable but TRASH performance
Safest phone in 2023, in my opinion, goes to the Honor 70 Lite. By far the most comfortable, yet has a basic 720p tft display. Performance leaves a lot to be desired, is often slow with the odd lag here and there, but the screen doesn't present any pwm or uncomfortable eye strain type of issue.
I'm keen to try the upcoming TLC Nxtpaper 50xl, as this will use the updated papermode 3.0, and it incorporates a circularly polarized light display.
Also both the Redmi 13c 5G & Poco M6 5G have received TUV Rheinland flicker free certification (not that that really means anything). Regardless, these could be worth trying if they're available in your country.
There is also the new blackview shark 8 (Oscal tiger 12), that uses an LCD panel, and is extremely cheap. From some feedback that I've read online, the display has a strong blue cast.
Overall, it's currently a sad state of affairs as it seems a new type of backlight/backlight calibration method is being used in these newer LCD phones which is not proving to be very eye friendly. This new type of harsh backlight was seen across many LCD handsets released in 2023 and its use is expected to go into 2024.
I can't pinpoint what the exact issue is, except the backlighting being used just feels off, and harsh. It's also worth mentioning that a lot of these handsets have received "low blue light" certification, so that may have something to do with it, whether they are now using a method or some type of additional embedded hardware layer, to reduce blue light, or whether the led's being used in the backlight are a newer "energy efficient" type (to help increase battery endurance/prolong display life), which is having a negative effect on the overall backlight and its temperature/calibration. Either way, it's proving to be problematic for those that are deeply sensitive to and with eye strain issues.