You’ve asked for it so we’ve put it together, a gaming smartphone heat test! For those of you who play games on your mobile, keeping a cool steady hand is important. With this in mind we’ve put together this vs test to see which is the hottest (and coldest) phone for gaming.

Taking the phones you picked from our previous tests we have the iPhone 6S Plus, Galaxy S7 Edge, HTC 10, LG G5, Nexus 6P and the OnePlus 3.

1. All phones on full brightness
2. All phones connected to same Wi-Fi
4. No other background apps open – from restart
5. All as old as the phones are – so iPhone 6S Plus is the oldest. But all are review devices, so all have been used a roughly as long as each other.
6. We recorded the temperatures through a Rolson Infrared Thermometer and the thermal imaging was captured through the CAT S60 smartphone

Keep your suggestions coming for future smartphone tests!

48 Comments

  1. Mar got

    June 21, 2018 at 6:58 pm

    Bro you look like Leonardo di caprio cool are you Leonardo's brother??

    Reply

  2. Mar got

    June 21, 2018 at 6:58 pm

    Samsung has taller,stronger,sharper

    Reply

  3. AsterIsLife

    June 21, 2018 at 6:58 pm

    Is ironic how the Samsung Galaxy Edge has more thermal than the rest.

    Reply

  4. fahad ashfaq

    June 21, 2018 at 6:58 pm

    S7 edge is beast

    Reply

  5. md.shahadat hossain

    June 21, 2018 at 6:58 pm

    phones are on fire

    Reply

  6. Jeffrey Merluza

    June 21, 2018 at 6:58 pm

    most worth it video of the year. thanks

    Reply

  7. María Eugenia Vidal

    June 21, 2018 at 6:58 pm

    Somebody can tell me if the s7 heats like the moto g4 plus ? Or less? Or so much less?

    Reply

  8. Andidas Boladas

    June 21, 2018 at 6:58 pm

    got my 6p last week. i am a heavy user and 6p got too hot.. regret to sold my s7edge..my s7edge never get hot before

    Reply

  9. Fabián Videla

    June 21, 2018 at 6:58 pm

    It's kinda dumb to place the phones right to each other, it's like common sense to give them some space to disipate freely thier heat and not have come other heat source right next, and not only one but even 4 heat sources, it's just stupid…

    anyways i am looking for a chart or a smartphone database like gsmarena where may include information about how much a phone heats, i think thats a key factor to buy a new phone sin my latest LG G2, that phone is pretty hot, like 80°C

    Reply

  10. parthasarathi ghosh

    June 21, 2018 at 6:58 pm

    s7 edge has liquid cooling

    Reply

  11. Rithy Vong

    June 21, 2018 at 6:58 pm

    yey my galaxy s7 edge win <3 I using it and yes it never get hot while using or gaming it is my favorite phone of all ! 🙂

    Reply

  12. Ali Raza

    June 21, 2018 at 6:58 pm

    good test!!!

    Reply

  13. Ivan Petrov

    June 21, 2018 at 6:58 pm

    Would be useful to see the Note 7 tested as well and compared against the reset of the 2016 flagships – including the pixel phones once they come out. And maybe try to space out the phones a bit next time, TechRadar? would also be great of you could give the phones a little breakdown in order to try to explain heat performance (software optimisation (iOS) or lack of, hardware tweaks (heat pipes in the Galaxy) ), Still, a good and informative video but could be improved.

    Reply

  14. Inferno

    June 21, 2018 at 6:58 pm

    You guys should've run Trepn profiler over the screen to keep track of throttling as well

    Reply

  15. Canada Arrow

    June 21, 2018 at 6:58 pm

    i'm finding that with my s7 edge the back where the battery is gets hot when play a high graphics game. but you put a case on and the phone seems to stay colder

    Reply

  16. Ryan Collins

    June 21, 2018 at 6:58 pm

    I disagree with this the phones are to close together even touching meaning they can transfer there heat to each other. they need to be spread out as I recently played real race 3 for over a hour and didn't feel any heat difference on my s7 edge.

    Reply

  17. Patrick Star

    June 21, 2018 at 6:58 pm

    this isn't a controlled test. the phones were right next to each other, the heat can be transferred to the other phones or even the table.

    Reply

  18. Ivanylsow Lecter

    June 21, 2018 at 6:58 pm

    teste mal feito pois deveria ser feito de forma que os mais quentes não influencia nos mais frio. teria que ser mais distante um do outro

    Reply

  19. Ilux Merks

    June 21, 2018 at 6:58 pm

    What dumb test is that? Don't the temperatures come from other smartphones interfere in the test? And do you want to fry your smartphone run prime test prime benchmark!

    Reply

  20. hiqhlander27

    June 21, 2018 at 6:58 pm

    Could u share how much fps each device had? Its difficult to measure temperature if u down know when thermal throttling is on

    Reply

  21. Patrykozaurus Solarzus

    June 21, 2018 at 6:58 pm

    why no xiaomi mi5

    Reply

  22. Pascal Fortin

    June 21, 2018 at 6:58 pm

    by holding all the phone together you creating a heat spot witch will increase the phone heat signature So basically it a good test but flawed try doing it one by one

    Reply

  23. BryceyN1986

    June 21, 2018 at 6:58 pm

    44c is that all? try having G Flex 2, im seeing 49-50c whilst playing CSR2…

    Reply

  24. danny webster

    June 21, 2018 at 6:58 pm

    phones to close together

    Reply

  25. 郭彥廷

    June 21, 2018 at 6:58 pm

    well, i wonder how u get the temperature
    some review point out that the temperature one get changes with distance (with the cat s60)

    Reply

  26. Luke Ameen

    June 21, 2018 at 6:58 pm

    S7e has heatpipe or some called it water-cooled system. Guess what's more? When it's hot, just submerged it into water thanks to waterproof capabilities. My htc one m8 also heats a lot, due to the fact of metal body though.

    Reply

  27. Jérôme B

    June 21, 2018 at 6:58 pm

    Funny he never mentioned the Nexus 6P that was one of the coolest all the time.. even more so then the iphone.

    Reply

  28. jewel santos

    June 21, 2018 at 6:58 pm

    I'm sure that's a Snapdragon S7 edge. But how about for an Exynos S7 edge? Will it yield same results?

    Reply

  29. NiK SV

    June 21, 2018 at 6:58 pm

  30. ChromeVoid420

    June 21, 2018 at 6:58 pm

    you should do the same thing but while charging each phone

    Reply

  31. N. W. Dood

    June 21, 2018 at 6:58 pm

    yup, the s7 edge was a great gaming device…never really noticed it heating up…

    Reply

  32. Mukhlis Rohaizak

    June 21, 2018 at 6:58 pm

    Techradar. Maybe you can do a heat test while charging phones?

    Reply

  33. pavan sai

    June 21, 2018 at 6:58 pm

    nice video bro

    Reply

  34. Daryll De Guzman

    June 21, 2018 at 6:58 pm

    Check out For Sale – Apple Watch Sport 42mm Space Gray Aluminum Case Black Sport Band MJ3T2LL/A http://www.ebay.com/itm/-/112125719388?roken=cUgayN&soutkn=HSMkbj

    Reply

  35. Mattelacchiato

    June 21, 2018 at 6:58 pm

    Which processor is used inside of the S7?

    Reply

  36. 1stgengsx

    June 21, 2018 at 6:58 pm

    being that close together there is going to be some heat transfer since must have an aluminium back, and the phones in the middle are definitely at a disadvantage.

    Reply

  37. Sam Lederman

    June 21, 2018 at 6:58 pm

    too close to each other

    Reply

  38. manfus yeung

    June 21, 2018 at 6:58 pm

    it is because the Samsung s7's gaming experience will be the worse

    Reply

  39. Anson Lam

    June 21, 2018 at 6:58 pm

    G5 is better in gaming

    Reply

  40. Eric Siegfriedt

    June 21, 2018 at 6:58 pm

    What about the back of the phones? Where is the heat concentrated? Do you think putting all those hot phones next to each other might have affected the results?

    So many questions that should have been asked before posting the video. Incomplete research IMO.

    Reply

  41. Vijay Vythilingum

    June 21, 2018 at 6:58 pm

    Heat transfer??? Why are all the phone touching?

    Reply

  42. Nikolas Birbakos

    June 21, 2018 at 6:58 pm

    Nice test. I`d like you to make a similar test with google maps inside a car with the phone mounted on the windscreen.

    Reply

  43. Ibrahim Haider

    June 21, 2018 at 6:58 pm

    Should the phones not be some distance apart? As contact with and close proximity to hot objects can increase the temperature. You can see the heat signatures were overlapping.

    Reply

  44. ThexBorg

    June 21, 2018 at 6:58 pm

    You stopped testing when the Samsung started heating up by more than one degree in the second hour 😂

    Reply

  45. Syed A Ali Shah

    June 21, 2018 at 6:58 pm

    I think Samsung has gave them a huge amount of money this year to advertise their smartphones ! And they have done their their job very well.

    Reply

  46. ammieex007 ashh

    June 21, 2018 at 6:58 pm

    yaaaaayyy my s7 edge is the best 🖒🖒🖒👏👏👏😁💛

    Reply

  47. GreenDave113

    June 21, 2018 at 6:58 pm

    Is it ok for my Xperia Z2 to go to over 45 C when watching Youtube?

    Reply

  48. Ashwin Raphael

    June 21, 2018 at 6:58 pm

    S7 edge is winning everything

    Reply

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