Related
Below is a link to a write up I did testing Color vs Grayscale screen. I tried to do it pretty scientifically. I hope some people find it useful. Please let us know the results if you do this test yourself, or any other tests using Samsung AMOLED.
http://seperohacker.blogspot.com/2014/09/samsung-galaxy-s5-grayscale-test.html
The result summary:
The test revealed that Grayscale measured very slightly better than Color. After 90 minutes of testing each at 100% brightness- Color showed a battery decrease of 9%, and Grayscale showed a battery decrease of 8%.
Black works better for amoled screens. I've seen lots of write-ups on this topic since my sgs3 days
By setting up the pubg with maximum graphics the device is warming up to almost 70 degrees celsius, it gets very hot on top of the rear cameras, even more on the right side of the headphone jack in the case and on the screen glass if you touch the lips on the screen glass realize that it is very hot.
Miui 11.0.1
Gabriel Martins said:
By setting up the pubg with maximum graphics the device is warming up to almost 70 degrees celsius, it gets very hot on top of the rear cameras, even more on the right side of the headphone jack in the case and on the screen glass if you touch the lips on the screen glass realize that it is very hot.
Miui 11.0.1
Click to expand...
Click to collapse
Device is not heating up to 70°C, CPU does. Device is heating to temperature just a little bit higher than battery temperature which is on your screenshot 42°C. Those temperatures are normal when you put powerful chipset like sd855 on high stress for longer period of time.
MnMchill said:
Device is not heating up to 70°C, CPU does. Device is heating to temperature just a little bit higher than battery temperature which is on your screenshot 42°C. Those temperatures are normal when you put powerful chipset like sd855 on high stress for longer period of time.
Click to expand...
Click to collapse
Just over 1 minute the device reaches this temperature leaving the screen very hot, I have Mi 9 and is no more than 60 Celsius, this device is not normal.
Gabriel Martins said:
Just over 1 minute the device reaches this temperature leaving the screen very hot, I have Mi 9 and is no more than 60 Celsius, this device is not normal.
Click to expand...
Click to collapse
Return it to seller.
Can anyone with the device take a test?
CPU does touch 65+ in HDR+60fps for me but as long as battery temps are <44 everything is good!
Do remember to take off any case/cover while gaming & not playing while charging too.
nakulp said:
CPU does touch 65+ in HDR+60fps for me but as long as battery temps are <44 everything is good!
Do remember to take off any case/cover while gaming & not playing while charging too.
Click to expand...
Click to collapse
The point is that the CPU is over 70C °, the rear camera, housing and screen next to the headset are very hot, I feel it in my hand and fingers, it bothers you a lot, high temperatures can burn the screen.
My Mi 9 is no more than 60C °.
Gabriel Martins said:
The point is that the CPU is over 70C °, the rear camera, housing and screen next to the headset are very hot, I feel it in my hand and fingers, it bothers you a lot, high temperatures can burn the screen.
My Mi 9 is no more than 60C °.
Click to expand...
Click to collapse
I told you that heating so fast is not normal. You have faulty device and return it to seller. You can use google or youtube and you'll see that no one get that temperatures so fast like you do. Here is example: https://youtu.be/C9jSZ4JR0qo?t=1
MnMchill said:
I told you that heating so fast is not normal. You have faulty device and return it to seller. You can use google or youtube and you'll see that no one get that temperatures so fast like you do. Here is example: https://youtu.be/C9jSZ4JR0qo?t=1
Click to expand...
Click to collapse
First of all he is measuring wrong with inexpensive and inaccurate equipment that is not even for checking the temperature of a human being. There is a right place to measure the temperature and not the way it is doing, I did the correct tests and this device has a low quality screen and a poorly positioned graphite heatsink.
Gabriel Martins said:
First of all he is measuring wrong with inexpensive and inaccurate equipment that is not even for checking the temperature of a human being. There is a right place to measure the temperature and not the way it is doing, I did the correct tests and this device has a low quality screen and a poorly positioned graphite heatsink.
Click to expand...
Click to collapse
I just choose that youtube video randomly, you can ignore it if you don't trust it but you have 1000 other Mi 9T Pro/K20 Pro reviews and youtube videos where you can see that this devise doesn't overheat fast like you say. You wrote: "Just over 1 minute the device reaches this temperature leaving the screen very hot" and I'm telling you that this is not normal and that your device is faulty and for the third time I'm writing you to return it to seller. This is the end of this stupid discussion for me and I won't comment on it anymore. You could use google in the first place to see how this device reacts under stress and you could see that this device doesn't have the best cooling but it also doesn't have the worst. Bye.
guys ... if you can`t keep it civil then you better stop here if you don`t want to have one more problem apart from the one with your device
thread cleaned
Hello. I bought this device and is too hot in idle or social networks Use.... Not on gaming (saint seiya awakening) or full charge situations. I think I should change the unit.
In this moment, the cpu is 42°C. And I am not using nothing. Just posting this vía Chrome.
No overheating for me
I don't know how hot it is in your countries, but at idle, my phone is always on 39°C/40°C (ambient temperature at 27°C-32°C), when I'm playing CoD mobile at max settings it barely reaches 50°C. I think it's fine considering that it's an intensive game.
Same issue with my device
Using k20 pro for last 5 months and now when I connect it to charger cpu temperature is going upto 65 to 70 deg. The battery temp is 37 to 45 . Only this happens when charger connected. Using original charger and cables and Xiaomi powerbank. Tried with changing cables and charger still same issue .
K20 pro getting heated while using camera
I have a major problem which i have never ever faced in any other device .
While using CAMERA , my device gets heated in 10-15 minutes and due to this increased temperature of device its very hard to use it.
A pop up message shows - " your device is over heated " and the camera gets closed automatically.
Some phones are great to take camping because if you play Asphalt 8 long enough, the back warms up to the ideal temperature that can bake bread. Rate this thread to express the extent to which the Samsung Galaxy Note 20 Ultra stays cool under extended heavy use. A higher rating indicates that even when playing strenuous games for long periods of time, the phone doesn't get uncomfortably warm.
Then, drop a comment if you have anything to add!
Heat is so minimal when using the phone but have tested video extensively or gaming. Heat is nearly non existent in other tasks. I think it is actually a bit too low when charging. Seems they have the charging throttled to keep the battery temp under 100°F which limits charging speed slower than it cloud be.
AndroidPurity said:
Heat is so minimal when using the phone but have tested video extensively or gaming. Heat is nearly non existent in other tasks. I think it is actually a bit too low when charging. Seems they have the charging throttled to keep the battery temp under 100°F which limits charging speed slower than it cloud be.
Click to expand...
Click to collapse
My exynos variant have a high temp at idle and load. Soc idle min 42, normal uses 50-58celsius, max soc temp is 68c.
Antutu scores after loop.
1.run 540k
2.run 520k
3. run 460k
My Exynos is cold in idle, cold in web browsing and warm while playing ragnarok mobile
It heat like a hot fry pan. While using phone normally. if i get call. I can't even touch is to my cheek. Sometimes it feel it will burn my skin.
With my Note 9 this heating issue was even more worst. Due to overheat. I wasn't able to use camera more than 10-15 minutes. Camera app keep stopping because of overheat.
Worst phone brand. Even after having so much innovation. Samsung Note series always disappoint me.
The only time I notice any heat build up at all is when it's on a wireless charger. Charging with the 25 watt included charger there's no heat at all.
When using Camera and try all options , different zooms , Device starts heating and gets to an abnormal temperature , this is affects the 5G signal , as it disconnects the 5G recipient automatically and turns to LTE !!
In my testing, the "Exynos" Note20U is not heating up like the previous Galaxies.
My SD version gets a bit warm just from normal tasks. And my battery life is atrocious :/ I really like this device but I may need to contact Samsung about a replacement and see if I got a defective one.
Exynos version at 120hz, a bit over room temperature screen off, warm when in use and hot when taking pictures. My note 10+ and oneplus 7t pro were never this warm. I'm also getting pretty bad battery life.
Note20 Ultra 5G 512GB Unlocked/Sprint
All around quite warm, charging, viewing, hotspotting.
UHD60 capture definitely gets the transistors in George Foremen mode if you catch my drift.
For mine, heat issue seems exacerbated by being on 5G signal. No heat when on 4G LTE / CDMA Only mode.
Virgo_Guy said:
In my testing, the "Exynos" Note20U is not heating up like the previous Galaxies.
Click to expand...
Click to collapse
Edit:
Forgot to add that it does warm up a bit in mobile data even when usage isn't high.
xdafallguy said:
Note20 Ultra 5G 512GB Unlocked/Sprint
All around quite warm, charging, viewing, hotspotting.
Click to expand...
Click to collapse
Strange. Having used notes since the first, i must say this is the coolest phone ive had. By cool i mean temp - avg cpu is low 30°cs, multiple runs of back to back antutu only got me to 37°c - with performance varience less than 3%.
It didnt heat up much when charging, editing 108mp files, or 4K/60 recording
Of course this is SD 865+ (N986N South Korea), not exynos like my older notes.
But so is yours. Like Jerry Rigs, may be urs has graphite cooling.. I wonder if some phones (like SK version) have the SD chip with copper cooling = which would be the perfect combo...
Note 20 Ultra Exynos990 heat Up so much. I don't understand what samsung is doing with exynos.
Snapdragon HK version here. No heat whatsoever. I am not playing games. The screen sometimes gets just warm when I use extensive tasks (camera, youtube, etc). CPU temperature always below 40C.
UK Exynos990 from official pre-order, so bad in heating and battery life. Warm normal use anything slightly CPU/GPU intensive make the phone as hot as a fry pan.
Note 20 ULTRA 5G 256GB "Exynos" - mine seems cool most of the time. Haven't been able to make it hot even with gaming or using camera.
Seems huge improvement compared with Note 8 in this area.
Sent from my [device_name] using XDA-Developers Legacy app
nipuna said:
Strange. Having used notes since the first, i must say this is the coolest phone ive had. By cool i mean temp - avg cpu is low 30°cs, multiple runs of back to back antutu only got me to 37°c - with performance varience less than 3%.
It didnt heat up much when charging, editing 108mp files, or 4K/60 recording
Of course this is SD 865+ (N986N South Korea), not exynos like my older notes.
But so is yours. Like Jerry Rigs, may be urs has graphite cooling.. I wonder if some phones (like SK version) have the SD chip with copper cooling = which would be the perfect combo...
Click to expand...
Click to collapse
Wow are your temps still that low? How about when wireless charging? I have the South Korean version too and I hit about 40c when wireless charging, and a lot of times it just sits around 35c when doing normal tasks.
I recently got a new 12 Pro as I hoped Xiaomi fixed the screen and proximity issues from 11T Pro. The 11T Pro is a great phone, the issues I had was a lazy proximity screen sensor which just didn't operate as smooth as an iPhone or Galaxy. No other flaws. So I decided to go with a 12 Pro looking for that screen improvement and a better proximity sensor.
The 12 Pro is everything 11T Pro is, except it does have a better screen more pixels,better colours, resolution and fingerprint recognition that instantly wakes the screen as soon as you touch it!
But still I can get over it that the difference in these two phones is minimal. Genuinely 11T Pro is a monster phone with great components and even better price. If I knew what I was getting, I probably would have stuck with 11T Pro as, 12 Pro is certainly not worth buying of you are coming from 11Tp.
So far from my own tests and checks, 11T Pro tops 12 Pro in every aspect, speed, opening of apps, images and videos rendering which I find a bit disappointed that older phone performs better them a new flagship.
For your info I attached a few screenshot from Antutu Benchmark and Geekbench tests.
So you got what you wanted?
The chipsets are nearing their thermal limits; faster processors, 5G and variable refresh rate displays use more mAh and generate more heat as a byproduct. The area to dissipate this thermal load is largely fixed by the dimensions of the device means hotter running devices. Not a pretty picture when you consider the implications.
Worse accurate color calibration of variable refresh rate displays is imperfect, there are simple too many variables. If color calibration is off, the gamma correction gets skewed even more.
Xiaomi probably had room for improvement with their displays. Samsung's display performance in terms of color rendering accuracy zenithed with the Note 10+.
At least you got a better display.
Samsung's S22U can't offer me that or SOT that's better even with a larger 700 mAh battery. It is a buttery smooth better hand warmer though
Sometimes hardware upgrades aren't a good option...
I also have both phones and I completely agree with nothing you said.
NOSS8 said:
I also have both phones and I completely agree with nothing you said.
Click to expand...
Click to collapse
How's your battery on 12 pro? I find mine really poor
Evo400 said:
How's your battery on 12 pro? I find mine really poor
Click to expand...
Click to collapse
It depends on the usage and I'm using a Xiaomi EU rom.
blackhawkexplained the why and how very well.
Xiaomi Eu rom,same apps same usage.
Poco f2 pro Qualcomm Snapdragon 865 4700mHa +/- 38 hours/ AOSP +/- 48 hours
11 T pro Qualcomm Snapdragon 888 5000 mHa +/- 35 hours
12 pro Qualcomm Snapdragon 8 Gen1 4600 mHa +/- 30 hours
Sony Xperia J(st26) Qualcomm Snapdragon S1 1750 mHa +/- 15 days
Thanks for that.
I'm also using latest Xiaomi. EU ROM on my 12.
11T pro is still on the global ROM
I find the 12 is really heavy on the battery for pretty much very same task and style of usage in comparison to 11T. The battery gets to 25% by mid day while this never occurred with 11T. ( That would be at least around 50%)
According to battery app what seems to drain the batteries on the 12 is the screen! Although I don't have display on,60hz only, etc .
Evo400 said:
Thanks for that.
I'm also using latest Xiaomi. EU ROM on my 12.
11T pro is still on the global ROM
I find the 12 is really heavy on the battery for pretty much very same task and style of usage in comparison to 11T. The battery gets to 25% by mid day while this never occurred with 11T. ( That would be at least around 50%)
According to battery app what seems to drain the batteries on the 12 is the screen! Although I don't have display on,60hz only, etc .
Click to expand...
Click to collapse
it is possible that this will be fixed with the optimization updates of the Snapdragon 8 Gen1 .
Also the battery saver setting set to "close apps after 10 minutes works randomly".
I use a 30w charger.
NOSS8 said:
it is possible that this will be fixed with the optimization updates of the Snapdragon 8 Gen1 .
Also the battery saver setting set to "close apps after 10 minutes works randomly".
I use a 30w charger.
Click to expand...
Click to collapse
There are reports here that the latest beta release from Samsung greatly improved the S22U's performance. Global power management tends to cause erratic behaviors of most devices especially bluetooth apps.
Which of the following phones gets warmer or hotter then it should?
- Pixel 7
- Pixel 6a
- Galaxy S22
- Galaxy S21 FE
@mruno @Mrcactuseater ?
Depends on how you set up the phone, the way you charge it, the daily usage and the weather conditions basically.
xda-eh said:
Which of the following phones gets warmer or hotter when it shouldn't?
- Pixel 7
- Pixel 6a
- Galaxy S22
- Galaxy S21 FE
Click to expand...
Click to collapse
each one of them had overheating problems
Fytdyh said:
each one of them had overheating problems
Click to expand...
Click to collapse
Like every other modern flagship that doesn't have a fan added to it.
Fytdyh said:
each one of them had overheating problems
Click to expand...
Click to collapse
EtherealRemnant said:
Like every other modern flagship that doesn't have a fan added to it.
Click to expand...
Click to collapse
Which are worse, and which are the lesser of the evils?
dexlemaffo said:
Depends on how you set up the phone, the way you charge it, the daily usage and the weather conditions basically.
Click to expand...
Click to collapse
Please elaborate. Thanks.
xda-eh said:
Which are worse, and which are the lesser of the evils?
Please elaborate. Thanks.
Click to expand...
Click to collapse
Pixel 6a is widely considered to be the worst of the bunch. The other three seem to be pretty comparable.
It really does depend what you do with the phone. My 7 Pro never gets more than warm. The highest battery temp I've seen is about 43C and that was when I first got it and it was going through the process of setting up all my apps, day to day it's much lower - in fact I've been using it for the last half hour or so while it's been charging and it's only at 39.5C. My iPhone 12 Pro Max and my OnePlus 9 both ran hotter on average.
That said, I live in Colorado, not some hot place like India, so our average ambient temp is about 69F/20.6C indoors and less than that outside right now. Obviously I'm going to have a cooler phone than someone whose ambient temperature is higher.
xda-eh said:
Which are worse, and which are the lesser of the evils?
Please elaborate. Thanks.
Click to expand...
Click to collapse
The idea is simple. Each of them is prone to overheating. Max normal temperature is 45 degrees Celsius. Anything over that means you might have a problem. Now it totally matters on your action. If you are gaming, the phone might reach that temp and then throttle itself down. Lesser of evils? There isn't. You want to avoid overheating? Don't game on the phone. Buy a cooler. Don't keep the brightness at max. Don't use your phone too much.
Fytdyh said:
...You want to avoid overheating? Don't game on the phone. Buy a cooler. Don't keep the brightness at max. Don't use your phone too much.
Click to expand...
Click to collapse
Doesn't that defeat the purpose of buying "high end" phones as opposed to mid-range ones?
This depends on how you define overheat.
A phone that's "hot" to the touch is an indication that the heat is being brought from the SOC to the heat spreader to the surface of the phone in order for it to be expelled as it should. Essentially the phone is a big heatsink and the more effective the heatsink, the more heat is transferred to the surface of the phone then eventually away from the SOC. The real issue is how the software handles the internal heat of the SOC. If working properly, you would want minimal or no throttling at all. But by design, there will always be some throttling, even if the SOC heat dissipation is ideal. Environment temps are taken into account, all the while to keep the SOC from reaching a heat which has an adverse effect on performance. The manufacturers just want the highest specs on paper, but balanced with a subjective opinion on what surface temps will get reproach and what throttled performance will be noticeable. I would take a "hot" phone that does minimal throttling over a "cool" phone that throttles the SOC.
oryanh said:
This depends on how you define overheat.
A phone that's "hot" to the touch is an indication that the heat is being brought from the SOC to the heat spreader to the surface of the phone in order for it to be expelled as it should. Essentially the phone is a big heatsink and the more effective the heatsink, the more heat is transferred to the surface of the phone then eventually away from the SOC. The real issue is how the software handles the internal heat of the SOC. If working properly, you would want minimal or no throttling at all. But by design, there will always be some throttling, even if the SOC heat dissipation is ideal. Environment temps are taken into account, all the while to keep the SOC from reaching a heat which has an adverse effect on performance. The manufacturers just want the highest specs on paper, but balanced with a subjective opinion on what surface temps will get reproach and what throttled performance will be noticeable. I would take a "hot" phone that does minimal throttling over a "cool" phone that throttles the SOC.
Click to expand...
Click to collapse
Not to mention that most people don't have thermal cameras and are just going by how it feels to them. Humans are not good at detecting differences in temperature. What feels hot to one may feel warm to another and vice versa.