My Galaxy Nexus often increases its heat to around 42 degrees Celsius (108 fahrenheit) constantly with minimal use (light 2D gaming for about 5 minutes), surfing the app store and playing around with the menus for a 10 minutes. I have installed the battery monitor widget application (free) which tells me everything and gives a timeline of different temperatures the phone reaches.
Constantly the phone is 30 degrees Celsius (86 Fahrenheit) and above, even during minimal use of apps (only running one app at a time, I selected the phone to only use 2G networks and it has no data plan).
This seems very very hot for a phone. My Galaxy S2 doesn't get past 28 degrees celsius (82 fahrenheit) under very heavy use whilst on 3G. My HTC Mozart is the same as the Galaxy, it barely gets above this temperature. Is the Nexus supposed to get this hot?
So far my battery life is set at 17 hours battery life with minimal phone/texting on 2G (literally 2 text messages and 1 phone call per day), 30 minutes of light 2D gaming and zero music or videos being played. There are no programs running in the background and the brightness is set at 40% or below.
EDIT: Even on standby without use for hours the phone has NEVER gotten below 26 degrees celsius (78 fahrenheit) .
I'm hoping someone could share info on the heat of their devices/the normal range of heat that these kinds of devices should be putting out. It sounds interesting that this much heat can actually be created, more elaboration would be better though.
bumping for answers for op.
I noticed a dramatic difference in the temperature from my evo 4g. Some potential causes:
* high stock voyages (there is a great thread in the Dev section about uv kernels)
* when running modaco's brightness patch it got worse for me.
* since it happens with the screen off, it is probably not tht...
83mck said:
EDIT: Even on standby without use for hours the phone has NEVER gotten below 26 degrees celsius (78 fahrenheit) .
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What's your ambient temperature?
Absolute temperature doesn't tell us much, what's useful is the delta between device temp and ambient temp.
Chirality said:
What's your ambient temperature?
Absolute temperature doesn't tell us much, what's useful is the delta between device temp and ambient temp.
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The room temperature is air conditioned around 18 to 25 degrees celsius (64F to 77F). The phone should not be hitting above this range, especially on standby. It should not reach 40 degrees Celsius whilst texting/app surfing on 2G.
Same issue here.
My Nexus One's battery is at 24C (plugged in, not charging).
And by GNex's battery is at 37C (plugged in, charging)
Okay 37 is fine but 42 is not :/
right now I have flashed a few roms and am browsing tapatalk.. at 34 Celsius. Just applied my undervolts though so we will see
Sent from my Galaxy Nexus using xda premium
Mine increase more than 42c when using too.
Just bought the phone and mine seems to overheat too much... going to buy a case....
Battery says 46 degrees cel...
also i noticed on galaxy nexus it get too hot around the camera on the back and the earpiece on the front.
noticed the problem mainly when in an area with weak reception. or while charging the phone even with good reception.
its something with the radioROM or hardware.
any suggestions??!!
normal
Its normal! 76F when not in use 90-101 in use 101-120 with charger and using . I called Samsung . My euro gs2, at&t gs2 and my skyrocket all have the same temps remember this is a very thin plastic phone with battery right there behind tiny plastic cover . Think of it like this dose ur computer get hot when u use it?? ? Have u ever even thought bout that? No cause ur not holding it in ur hand .
+1
This is a dual core phone, it is going to run hot because it's a dual core processor with no cooling other than dissipation. It's not a problem unless your phone is actually crashing because of it. I've seen mine get up to 46C during long periods of gaming/charging.
I expect the hardware has been developed to tolerate these temperatures or we'd see a lot more "my phone overheated and now it's a brick" posts or even "my phone exploded into flames" posts. Have only seen a couple of the former and none of the latter.
Running hot after root, rom and maybe 'incorrect charger'
So like others here my GSM version Galaxy Nexus phone is quite hot at the top right corner back and front, near the camera. Only when the screen is on. Battery drops very rapidly too.. like 1% every 30-45 seconds...
This heat is brand new. I recently rooted and romed the device after the recent ICS update cause signal loss when the screen was off. I tried AOKP, various kernals and have now returned to the original backup of android 4.0.2. The heat continues with the screen being on, through all of this. Doing nothing, wifi connected... just on. Screen off no issues. No apps are installed except stock. Default Kernal again.
I also noticed i plugged the phone in with my blackberry playbook charger at the same time as all of this. The specs on that are playbook charger output is 5V @ 1.8A..
I notice a few other people posting about this so want to know if this might be rom related somehow, or if perhaps ive done something to the hardware from the charger. I've tried a spare battery that was not used with the charger at all and the heat continues.
There was no heat at all like this before this last 24 hours so its not 'normal use'. Promise Hope someone has some possible suggestions to try
Mine is at 31 right now.. listening music and xda... if play games it goes to ~35 if I plug it in it gets hotter than 40...
Sent from my Samsung GNexus <3
Related
Like the topic says..
My Defy usually very hot whenever I surf the internet using 3G. Sometimes temperature hit around 45°C.. When idle on 2G, it stay around 35°C which is normal.
Anybody experience temperature above 45°C ? I'm running setvsel to minimise the voltage use and at 1000mhz seemed doesn't cool it down.
Sent from my awesome Moto Defy: Stock Rooted Gingerbread 2.3.3 - XDA Premium
mine 800 mhz reaching till 41 c without running setvsel.
i think its normal.
and don't forget the warms of the hands are part of it.
when i'm playing modern combat 2 less than 15 min get's hot.
The hottest mine has gone was 50degrees..usingit as a wifi hotspot
But the temp drops to 40 - 45 if there is full 3G signal...
I have reached temperature above 40 C occasionally. Heck I've reached 45 when using my defy as a router for the wife's iPod (immediately stop and throw the defy in a bucket of water for a minute afterwards..temp drop down to 26!!) .
If i am using HSDPA, temp will get high, 39 -41 Celcius is expected after an hour of heavy browsing. very rarely went above it unless downloading a big file.
But it is much better compared to before, right now i am using the central europe baseband running 2.3.4-134. When I am using stock UK or even SEA baseband, temp reached 43 after just 15 minutes of browsing.
I am in Indonesia, and found the Central Europe BB is the best for me.
I only get high temp from HSDPA, never from wifi or gaming. Played 3d games till my battery almost out and it only reached 40. Played a movie for 2 hours and the temp is only at 39/40. Transfer 4GB of data using moto portal Wi-Fi to my PC for 2 hour, temp is 37 and this is done today.
Here is my take, a temperature of 41 in using the defy is expected when you are using your HSDPA, anything above 41 is considered HOT for me.
This device tend to be hotter then say my friend Galaxy S. probably since it is water resistant so the heat/air outlet is limited.
dont worry too much, you can do what i do and dunk the defy in a glass/bucket of cold water should you deemed the device is too hot.
I'm on leaked 2.3.4, and I have highest temp when surfing on 3G 44 c, when idle the temp is about 28 c.
I would hope and wish this Defy will stand up at 50 c since it name of dust and water resistant mean no air or any ventilation in or out from this device. But sometimes it worried me of holding it when it becoming hotter. Normally I will open the battery cover after I finished my games or surfing and lay it down for a few minutes.
Note: I hardly get anywhere near 40 c when I was using Froyo 2.2.2 french retail version. Perhaps this gingerbread run 1000Mhz by default caused its temperature rise quicker.
farsight73 said:
I would hope and wish this Defy will stand up at 50 c since it name of dust and water resistant mean no air or any ventilation in or out from this device. But sometimes it worried me of holding it when it becoming hotter. Normally I will open the battery cover after I finished my games or surfing and lay it down for a few minutes.
Note: I hardly get anywhere near 40 c when I was using Froyo 2.2.2 french retail version. Perhaps this gingerbread run 1000Mhz by default caused its temperature rise quicker.
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I live in Texas USA. Here in the summer the temp' is above 100°(38°c) Fahrenheit 90% of the time. One day my wife left her cliq XT in the car. When we returned the screen was showing 'cool down mode'. When the home screen came up and I look at the temp', it was showing 58°C. I was shocked! Her phone still works properly.
So I think these phones can survive extreme temperatures.
Sent from my MB525 using XDA Premium App
Typically mine runs about 30C (86F). On a really hot/humid day here in Iowa, and while charging, it will reach around 45C (113F). I've got my defy running with setvsel at [email protected]/[email protected]/[email protected]
grannyrogers said:
I live in Texas USA. Here in the summer the temp' is above 100°(38°c) Fahrenheit 90% of the time. One day my wife left her cliq XT in the car. When we returned the screen was showing 'cool down mode'. When the home screen came up and I look at the temp', it was showing 58°C. I was shocked! Her phone still works properly.
So I think these phones can survive extreme temperatures.
Sent from my MB525 using XDA Premium App
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This look promissing! The phone actually will auto switch to 'cool down mode'.
Probably the mode will triggered above 60c. Thanks for the input..
Mine is above 35°C whith 1,3ghz/78vsel.
Julian
mine is sat idle at 26c but using 3g on a hot day i have seen it hit 45c it is running at:
300Mhz 22
600MHz 32
1GHz 52
The temperature of my 1x gets extremely high sometimes, especially when I play games, what is the highest possible safe temperature and at which temperatures is it risky to keep playing? Also, will this be fixed?
Sent from my HTC One X using XDA
Official HTC Statement: HTC One X is normal to overheat
JayceOoi said:
Official HTC Statement: HTC One X is normal to overheat
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this is coming from support?
hamdir said:
this is coming from support?
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Yes.
It might be only placebo effect, but browsing with Dolphin Browser HD heated less One X than stock browser. It might have been only a coincidence and I haven't tested enough to reach conclusions. Yet, other users might confirm or infirm this impression.
This can’t be the normally operating temperature range. When my battery temp gets to 55 Deg C it reports the battery state as “overheat”. This can’t be good...
Ever since I used a custom rom my phone doesn't get any where near as hot, must be something with stock.
Sent from my HTC One X using xda premium
I played Riptide GP for a while and topped at ~38 Degrees. Even a 40 Minute Google Maps Navigation with attached Car Charger topped @ around 36-37 Degrees. Perfectly fine for me, tho other Games (or Demos) like Glowball which REALLY stress the GPU and CPU due to its graphics demo category heat up the phone to like 43 Degrees.
Other than that, I dont have any problems. I only start up Glowball for a couple of seconds to show off graphics power, not to do anything scientific in there.
EDIT: And what should I say. My standby time is around 26 Degrees when not in my pocket. In my pocket it goes up to 31-32 degrees, but thats normal since the casing kind of absorbs the heat of your body at some point.
When I surf the web for like 30 Minutes, my device never gets hotter than 34-35 degrees, even in comfy warm surroundings (like my flat).
The heat discribed in that article seems a little intense... Maybe there is a faulty batch with heat issues? The One X sure gets warm, but so did my old Galaxy S2 and on top of all, the old Motorola Milestone which became a rough ear heater when doing calls for more than 40 Minutes.
I had a 60 Minute call with my bro 2 days ago, and my One X just got up to 29 degrees... Dunno whats going on there. I always have temperature sensor apps running the first few weeks after I bought a new device.
>>>>“If the phone is in normal use without playing games or calling for long time, the temperature should be around 37°C or 38°C. But if you use your phone to play games or surfing internet for a long time, it will be normal that the temperature rises to around 55°C.“, official statement from HTC. <<<<
This is the one major gripe I have about the One X. It should not heat up to 50C no matter what. It may be "normal" for the One X, but it's not normal or good in general. I hope the next firmware update addresses this. I've gone through god knows how many phones and the heating issue is by far the worst with this phone. Some surfing and apps running for about 10 minutes should not warrant a jump to 40+ degrees in my opinion...
does anyone else is nexus get really hot when surfing the internet or doing anything else. I've only been using the phone for 15 minutes and it's already dropped 10 percent. idk its up to about 118 degrees
is this pretty common with this phone?
Clock speed
Usage
Screen brightness
Those affect how your gets.
Are u an aggressive user and clocked it up high and always have high brightness.
No only 15% brightness no over clock. New phone just got it today just seems to heat up asap...and gets over 110 degrees easily. The of course causes major battery drain. Prob normal for this phone just never experienced heat like this before
Isn't the processor on the Gnex designed to do a panic restart when it reaches 110 C's ? :/ yes its a big issue i've noticed that the phone doesn't get that hot when using stock Rom weird...
I don't get over 110 and I'm OCed to 1.3gHz, auto brightness on.
Sent from my Galaxy Nexus using Tapatalk 2
The only time mine gets abnormally hot is during a phone call. Im even underclocked and it still does.
getting hot in a smart phone this powerful is normal. I had the S3 for week, that sucker gets hot!
I agree with OP. Mine gets noticeably warm when scrolling through large non-mobile web sites. It cool when scrolling through apps like tapatalk, market, reader apps. It must be something to do with browser engine
Mine gets quite warm as well. Especially with games like gta 3 and Final Fantasy 3.
Sent from my Galaxy Nexus
please don't forget that you're holding a device with a dual core CPU, clocked at 1200 MHz, without fan, water-cooling or anything. ever tried touching a computer-cpu?
(don't do that, lol)
Mine can easily get to 110 degrees. It definitely has a heat issue. My Razr Maxx can get warm too, but not hot like this GNex. It hurts to palm sometimes !
LTE / Camera / Data stuff . / Charging all contributes to this.
Thank god it has removable battery, since battery life will be significantly dampened by heat.
Mine gets hot since Jelly Bean... Maybe "project butter" is intended to melt our phones like butter
remember, battery temp and cpu temp are two completely different things. cpu temp will get lowered automagically in the gnex when it reaches a certain point(heat throttling is enabled in the gnex, unless you disable it), and it will shut down the cpu when you reach 110C, not 110F, that is a safety feature. 110C is 230F btw.
I am still under the period where I can have this replaced so im asking if these recordings are normal. 49+ deg celsius when was using the quick charger while making some spotify music offline. Around 900mb on wifi. 43+ was when i was playing hearthstone on LTE. Also having trouble reaching 3h screen time with moderate use. Also worth noting that i think this is the processor heating up, not the battery.
Should i have this replaced?
Every mobile processor in the world will heat up on heavy load content, we are not using feature phones anymore, and this is our reality now, smartphones get warm and hot and we need to live with it =]
Also, this is where im at right now after an hour and 10 use at 85% at 41 deg celsius
rafyvitto said:
Every mobile processor in the world will heat up on heavy load content, we are not using feature phones anymore, and this is our reality now, smartphones get warm and hot and we need to live with it =]
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Thanks but isnt 49 degrees celsius a little too much on a quick charge while being used?
dinzkie said:
Thanks but isnt 49 degrees celsius a little too much on a quick charge while being used?
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It isn't too much, the battery is receiving electricity at a faster rate which causes the phone to heat up and then using the phone on top of that produces even more heat. It is also recommended not to use it while it is on the charger (the fast charge ones).
So this is just normal then?
when using wifi/4g in my house, i watched video, browsed fb and even shared internet and all. below i'll give my observations:
in wifi:
watching video, fb and browsing, whatsappin: the phone get very very slightly warm like not warm just the bit different from the phones usual temp like it hovers around 33-34.
when gaming in wifi it goes arounf 36-39 (NOVA 3) battery never crossed 31..
4g in my house, battery arounf 32-33, temperature around 37-39 for all.
but when i step out of my house, like when i'm operating my mobile in train/bus and the ambient temperature varies from say 28-32, my phone gets considerably hot and today, i was travelling in Bus and the ambient temp was around 35 and i was just browsing , watching videos and fb, my phone became hot like it even would have touched 43-46! i felt it hot to touch, is this norma(it's making me extremely paranoid)l!!??? if this is the case what happens if it's summer here, the phone would become blazingly hot, coz in summer ambient temp would be around 36-44 and all!!
Is this normala or am i unlucky for the second time ? I'm getting paranoid!
Just hit them back up
Sent from my ONEPLUS A3000 using XDA-Developers mobile app
Are you serious.... When the ambient temp is 35 degree what else would you expect... Every phone on the planet will get that temperature. Can't believe you had a phone returned for this. You know the front of the device is black and absorbs light... When the sun hits your phone it's gonna heat up also. This phone is the best Android phone when it comes to thermal throttling.
msvr3 said:
when using wifi/4g in my house, i watched video, browsed fb and even shared internet and all. below i'll give my observations:
in wifi:
watching video, fb and browsing, whatsappin: the phone get very very slightly warm like not warm just the bit different from the phones usual temp like it hovers around 33-34.
when gaming in wifi it goes arounf 36-39 (NOVA 3) battery never crossed 31..
4g in my house, battery arounf 32-33, temperature around 37-39 for all.
but when i step out of my house, like when i'm operating my mobile in train/bus and the ambient temperature varies from say 28-32, my phone gets considerably hot and today, i was travelling in Bus and the ambient temp was around 35 and i was just browsing , watching videos and fb, my phone became hot like it even would have touched 43-46! i felt it hot to touch, is this norma(it's making me extremely paranoid)l!!??? if this is the case what happens if it's summer here, the phone would become blazingly hot, coz in summer ambient temp would be around 36-44 and all!!
Is this normala or am i unlucky for the second time ? I'm getting paranoid!
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Click to collapse
With heavy multitasking, I hit 60+. Not regularly, but it has happened. The temperatures you're hitting are normal for me. I've had zero issues with the device. I have an OtterBox case, so I don't feel the heat as much. Honestly, I barely even notice heat at those temperatures. Considering the fact that the body of the device is aluminum, it's going to easily get hot to the touch.
Also, my One would almost always run between 45-70, and I've had that since launch. Used it heavily daily for years, and I still use it regularly as an app development device. No issues.
These devices have extremely powerful processors. They get hot. There's not an easy, efficient, way to cool a processor in a device like this yet, but they're designed for heavy use, so I wouldn't worry about it.
crzykiller said:
Are you serious.... When the ambient temp is 35 degree what else would you expect... Every phone on the planet will get that temperature. Can't believe you had a phone returned for this. You know the front of the device is black and absorbs light... When the sun hits your phone it's gonna heat up also. This phone is the best Android phone when it comes to thermal throttling.
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Hi first of all thanks for the reply.. I'll tell you what really made me paranoid.. Every evening I travel in bus and train and the ambient temperature would be from27-28_29.. I use 4g jio.. I just browsw/fb/insta.. In minutes my phone near the earpiece on the screen gets warmed up and it'd go around 40-41. Then I lock it it cools down fast but when I unlock it in seconds again starts warming up... My friend using same 4g in moto g4plus but his screen is cooler than mine... Please my one last doubt...
This is nothing lol. I live in Scotland so just now ambient temperature range from 5-13 °c and in my house 21-23°c and my Z3+ hits 60-70°c easily on heavy use. Benchmarked it one day and hit 90°c. The joys of the 810 chipset. Anyway away to upgrade to the OP3T so i should see and feel a massive difference.
msvr3 said:
Hi first of all thanks for the reply.. I'll tell you what really made me paranoid.. Every evening I travel in bus and train and the ambient temperature would be from27-28_29.. I use 4g jio.. I just browsw/fb/insta.. In minutes my phone near the earpiece on the screen gets warmed up and it'd go around 40-41. Then I lock it it cools down fast but when I unlock it in seconds again starts warming up... My friend using same 4g in moto g4plus but his screen is cooler than mine... Please my one last doubt...
Click to expand...
Click to collapse
Install a custom ROM and kernel and limit your background tasks. You may just have a bunch of things running using your CPU.
Thank you all!
Hey all thank you guys very much for replying to my thread! i'm really feeling okay instead of getting paranoid with my phone.. although i'd be very happy if you guys just clear me this last doubt!
today I was playing NOVA 3 connected to wifi in an ambient temperature of 25C, 5-10mins into gaming, CPU reaCHED A MAX OF 41c and at around 20 it maintaining at 43 but jumping sometimes 45.. this is gaming, but i get the same temperature just browsing in knda same ambient temp while I'm travelling. and also browsing in wifi/4g(fb,insta,chrome) in my house in ambient 25-27 gets the phone phone to 35-37... and the rest of the pat of the mobile is cool, even the back side is normal, only the small portion between the earpiece..
why is this happening? is this normal(it'd be great if you guys clear this)? if yup y so? and why phones like oneplus x and moto g4 etc have relatively less temp than OP3..
I know it'd be irritating to answer kinda same question again, but this would my help paranoiac freaking out for my mobile will go down..
thanks in advance for your replies
msvr3 said:
Hey all thank you guys very much for replying to my thread! i'm really feeling okay instead of getting paranoid with my phone.. although i'd be very happy if you guys just clear me this last doubt!
today I was playing NOVA 3 connected to wifi in an ambient temperature of 25C, 5-10mins into gaming, CPU reaCHED A MAX OF 41c and at around 20 it maintaining at 43 but jumping sometimes 45.. this is gaming, but i get the same temperature just browsing in knda same ambient temp while I'm travelling. and also browsing in wifi/4g(fb,insta,chrome) in my house in ambient 25-27 gets the phone phone to 35-37... and the rest of the pat of the mobile is cool, even the back side is normal, only the small portion between the earpiece..
why is this happening? is this normal(it'd be great if you guys clear this)? if yup y so? and why phones like oneplus x and moto g4 etc have relatively less temp than OP3..
I know it'd be irritating to answer kinda same question again, but this would my help paranoiac freaking out for my mobile will go down..
thanks in advance for your replies
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Because the Oneplus 3 is a lot faster, the Temps you are giving are n even close to hot... This has been one of the cooler phones so far.
Like others said, those temps are completely normal. Hell, I'd even expect them to be higher with your fairly high ambient temps.
About comparison with other phones - it all depends on internals and design. OP3 is made of aluminum so it'll dissipate more heat into the case - you'll feel it better. Other mentioned phones are plastic, so they'll contain more heat inside (you'll not feel so much heat, but the cpu may even run hotter).
And OP3 has cpu located just below the camera, so it's normal that it reaches top temps in that upper center part of the device.
P.S.: You talked about loads and ambient temps, but didn't mention screen brightness - that also plays a massive role in running temperatures.
Sent from my OnePlus 3 using Tapatalk
Explorer23 said:
Like others said, those temps are completely normal. Hell, I'd even expect them to be higher with your fairly high ambient temps.
About comparison with other phones - it all depends on internals and design. OP3 is made of aluminum so it'll dissipate more heat into the case - you'll feel it better. Other mentioned phones are plastic, so they'll contain more heat inside (you'll not feel so much heat, but the cpu may even run hotter).
And OP3 has cpu located just below the camera, so it's normal that it reaches top temps in that upper center part of the device.
P.S.: You talked about loads and ambient temps, but didn't mention screen brightness - that also plays a massive role in running temperatures.
Sent from my OnePlus 3 using Tapatalk
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for me mostly brightness bar will be in the middle... i never use it with high brightness..
Just get a case and maybe a screen protector so that you can't feel it getting hot.
crzykiller said:
Are you serious.... When the ambient temp is 35 degree what else would you expect... Every phone on the planet will get that temperature. Can't believe you had a phone returned for this. You know the front of the device is black and absorbs light... When the sun hits your phone it's gonna heat up also. This phone is the best Android phone when it comes to thermal throttling.
Click to expand...
Click to collapse
hey ya !! sorry to disturb you again and again.. just a urios doubt.. what'd be the temperature of the phone or how hot can it gets, when u use 4g and fb app in ambient temperature of 29C and 33C..
mine got arounf 38-41 for the 1st cse and around 43 for the second case..
I know i'm being paranoid, ,but please, clearing tis would help stop worrying a bit
All the temps you posted are normal
About Moto g, it has much weaker SoC. A Ferrari's engine gets much more hotter than a toy car. Doesn't mean there is anything wrong with Ferrari
4G /3G active usage can get hotter than gaming. That's also normal
msvr3 said:
hey ya !! sorry to disturb you again and again.. just a urios doubt.. what'd be the temperature of the phone or how hot can it gets, when u use 4g and fb app in ambient temperature of 29C and 33C..
mine got arounf 38-41 for the 1st cse and around 43 for the second case..
I know i'm being paranoid, ,but please, clearing tis would help stop worrying a bit
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Click to collapse
Nothing much to worry here. Even I use Jio all the time. My OP3 get a lot hotter than any other device I use before. Reasons I knew are these.
1. OP3 rock with a high end processor. Say SD 820. Other phones you mentioned are consisting of relatively lower end processor. So internally they might heat up more that OP3 while doing high processor intensive tasks, but the plastic casing keep the heat inside, as OP3 is made up of Aluminum that being a metal heats up so quickly and and u feel more hotter in hands than the other ones and also it cools faster.
2. AFAIK the processor is situated just below the Camera bump. Hence it heats up very quickly at that area. Irrespective of outside temperature.
3.While using 4G network it's obvious that the phonehave to communicate with the network at a very high rate than 2G or WiFi. So it's clear that it will heat up. Also using high processor intensive application like Facebook gives the processor high stress and it heats up in no time.
Remedies
1. Use a case. That somewhat helps in insulating the heat.
2.If possible use WiFi rather than 4G network. That will considerably helps your battery life.
Conclusion.
Don't worry about the warmth of the phone.Its normal. Just enjoy using the phone.
Never Settle.
Cheers.
Clearly never experienced a SD810 device. I'm sure Snapdragon took there name too seriously with that chipset. I could hit HIGH 80°c in seconds playing basic games, using the camera and under heavy usage. Had to tailer my use around my Z3+ but now I have the 3T I can do what I want and it never goes past 50°c so far.