francerex

Yes. I'm currently using it as a daily driver.

I haven't noticed any PWM. Haven't had a proper chance to test it for temporal dithering yet.

I have a celicious anti glare matte screen protector applied (I prefer celicious ones as they are more thicker/anti glare more effective).

Honestly, I can't recommend the A77 5G. The screen is bright, but it's only 720p, and it only has a 90hz touch sample rate (along with a 90hz refresh rate). Operating the device feels quite sluggish, as the screen isn't responsive to the touch. Maybe I'm used to the other LCD displays that usually provide 180hz touch sample rates, and even 240hz (Realme 9 pro, Oneplus nord ce2 lite, Moto G62 5G etc).

Also the model I have is capped at 4GB ram (so this isn't very future proof).

I've noticed the on screen text is uncomfortable to read when the eye comfort is activated (full strength). However adjusting the color temp to "natural" and with a cooler hue, I'm finding it more comfortable.

The only major redeeming quality is the sound and call quality via headphones. Pretty loud and clear for a very budget device. Also the battery life is very good, especially during standby. Charges quite fast too.

I don't think it's worth the retail price. However if you can get it discounted (like I did), then could be a consideration, although you can also get a used/nearly new realme 9 pro, nord ce2 lite, nokia G60, Realme 8 5G, Poco M4 Pro 5g etc for the around the same price, and maybe even cheaper. All better specced and faster.

    The A77 5G is basically the same handset as the Oneplus N300, Realme Narzo 50 5G, Realme 10s, Vivo Y77e etc - all just rebranded differently/region dependent. You may notice ram differentiations based on regions, but apart from that, they're all identical in looks/style/main specs.

    But the 90hz touch sample rate/720p display is by far the worst aspect. Not sure what they're thinking, considering even their cheaper handets (Oppo A54 5g, A74 5g, Realme 8 5g etc etc) all have 1080p full HD displays, with 180hz touch sample rates.

    720p displays/90hz touch sample rates are an embarrassment in 2022/2023.

    I think I prefer the Realme 9 pro & Realme 8 5g the most.

    A decent balance of mid range specs/ok performance - and decent PWM/Temporal dithering free displays.

    Not sure why I continue to buy and test other LCD based budget handsets. I'm eager to try the Poco M5s (amoled - apparently flicker free) & the new Realme 10 Pro 5G.

    I think I may have developed an addiction of some sort!!! 🤣😂😩😩😩😩😩

      OK, I think I might end up getting mentally hospitalized pretty soon, lol.

      I just got my Samsung Galaxy Note 5 from the repair shop. It was an N920c model. Since the HDD had failed, the repair guy had to change the mainboard completely, and now it shows N920i in the device information.

      And I can not believe it, but it is frying my eyes !!! 🙁(( The worst PWM I have felt in a while. I don't know if it was really this horrible before repair.

      After experiencing this, I went to have my eyes checked for the 3rd time this year. I explained PWM to the doctor and had her do any examination there was, on my eyes, and yet again my eyes were absolutely perfect. She said there is absolutely nothing wrong with your eyes.

      I'm just going crazy, I don't know what else to do. I can only use my mom's disgustingly old Galaxy Grand 2 now.

      Here's a current video of the Note 5's flicker compared to my mom's Galaxy A80 and of course the flicker-free, temporal dithering-free Galaxy Grand 2. I think the A80 doesn't hurt my eyes, though I have never used for very long periods.

      https://youtu.be/jucGCKYC4vY

      I wish I had recorded my Note 5 before, so I could compare the PWM, but it never really hurt my eyes, so I never bothered. Could it really be that once you see the flicker in video, your mind just keeps focusing on it more and more, and you cannot unsee it?? Could the N920i board be dithering? Honestly, at this point, I think I can tell dithering pain from PWM pain, and this is definitely PWM pain.

        dawidd6 I tried an A23 too, thinking the LCD might work - no dice, eyestrain and headaches pretty quickly. Christmas gift for my daughter now.

          I just received my ohsp-350f today. I've been looking at devices I have for blue light and flicker. Also have been checking light bulbs and Christmas lights. LG G8X which is my daily driver has <240hz flicker with massive depth of 80%. iPhone SE 2022 which seems to have no flicker. Will do some more testing on the rest of the devices I have.

          Hello everyone, we are discussing the same topic on the 4pda.to forum, there have been a lot of people with the problem of intolerance to modern smartphone displays, and it doesn’t matter what display type IPS or Amoled, we came to the conclusion that manufacturers began to artificially (hardware or software) add saturation to screen colors using the same FRC or TD, which kills our sensitive eyes worse than any PWM, we have already tested the MI 12T PRO - it also causes headaches and eyestrain despite the rather high PWM frequency, my Mi 10T PRO cause a headache , although there is an IPS, we also had a version that eye-killing settings come with new firmware, which kills even good old smartphones.

          In general, the problem is serious, although not yet very common, yet most people do not have problems with their eyes when using new phones.

            BloodyHell619

            Wow. That is some pretty severe PWM in that video!!! That would fry my eye's too.

            Regardless, I don't believe what you're experiencing is psychosomatic. If you're feeling symptoms manifest whilst using particular devices and not others, then it's likely to be a reaction of some sort to the display tech/software.

            I think some of the recent dithering issues that are circulating may be due to android itself (v12/v13).

            I've updated my realme 9 pro recently to android 13. The text contrast/sharpness has increased, as well as the color saturation. I've immediately noticed a difference compared to before.

            I'll definitely NOT be updating any of my other devices when prompted to.

              Vividblu99 some people tried Oled Saver or PWMfree (outdated), someone use reducing blue light and protonomaly.

              me and some people complain about the "Flashlight in the Eyes" effect, after which photosensitivity appears, it is also difficult to read text on some screens, it is difficult to focus, nausea appears, we think it is due to pixel shaking (dithering).

                  Vividblu99 hi. Have you found any budget phone that has zero pwm and zero td? (In your own testing with a microscope and slo mo cam)? I am open for older models too.

                      logixoul

                      Personally - I've found no PWM or temporal dithering in the oneplus nord ce 2 lite 5G, Realme 8 5G, Realme 9 Pro 5G, Realme X50 5G, Nokia G60, Realme 7 5G, and recently, the Oppo A77 5G.

                      However, another member on here mentioned they felt temporal dithering on the Realme 7 5G, but from my own tests, I couldn't detect it.

                      These were all tested on Android versions 10/11/12. Not Android 13.

                      I've had other phones, like the Redmi Note 9T, Poco M3 Pro, Poco M4 Pro 5g, Moto G62 etc, but at the time, I only tested for PWM, and not dithering. So can't confirm if they were TD free.

                      The Realme 9 pro recently updated to a beta version of Android 13 - and I've noticed an increased text sharpness and saturation. I'm planning on testing it again to see if temporal dithering is now being used. (I hope not).

                      To make these phones comfortable, I've done some tweaking, as in, all had anti glare matte protectors applied, and some required me to shift the color balance to natural/cooler, and others Saturated/warmer etc. Text & display size was also adjusted, and the display brightness is usually kept at the lower end, as the higher the brightness, the more the text becomes sharper, making reading uncomfortable. I sometimes also use external apps like Twilight and Color Calibrator, to reduce contrast, increase the redness tint etc.

                      But none were perfect right out the box. They ALL required some sort of adjustment.

                      I've been lucky (thank god!!!!) That these have so far, worked for me without causing eye strain/eye fatigue.

                      I can't use any amoled/oled phone at all - as my symptoms immediately appear. I'm interested in trying the poco m5s as its amoled without PWM (allegedly).

                      I just hope this android 13/dithering issue isn't true - because this means if I update them, the screen dynamics might change and the eye strain might appear (as recently noticed on the realme 9 pro).

                          Vividblu99 I use the Realme 9 Pro with the Android 13 Update now for over 2 Weeks. Also with matte screen protector. I feel no difference compared to Android 12.

                          I also currently have no luck with OLED display at all. I hope that this could change next year with the new OLED Display like E6 with high pwm frequency. The Vivo X90 Pro+ seems to work with 1440 Hz on low brightness and 720 Hz on high brightness. Xiaomi 13 Pro 1920 Hz and 360 Hz. Source Digital Chat Station over Weibo.

                              Vividblu99 Thanks! Could you post an example video that you shot, capturing TD on a phone? A single one will do. Just to make sure we're all "on the same page".

                                  BloodyHell619 I believe the vast majority of past Samsung AMOLED mobile displays used around a ~240Hz PWM frequency, and what could be different between them is the "duty cycle" of the waveform, often expressed as flicker coefficient by some light meters.

                                      Conclusion: we don't have a 100% tight causality between Pwm/TD and our complaints? I have tested the Nokia G60 and same bad feelings arise….

                                        logixoul

                                        Sure.

                                        Here is an example of the TD I captured using a slow mo bust of 960 fps on my sony camera for the Oppo A74 5G - magnified through a cheap usb microscope at the highest setting.

                                        https://ufile.io/iuyuro8n

                                        This is definitely temporal dithering right?

                                            RulerofNothing

                                            For some reason, I'm noticing a sharpness increase after the update 😩

                                            I'm on a Beta version though. I haven't received the stable update yet.

                                              dev