S25 Ultra gets hot! Overheating?!

[GusB]

ok...clickbait.. but it worked.

I just wanted to post about modern smartphone temperatures for those who are maybe new, upgraded from older models or just generally worried...

I too have previously had concerns with temperatures, especially during high load, gaming, demand...I started to think it was a fault. There is a HUGE difference to 'getting warm' / 'getting hot' vs 'overheating'.

The chip absolutely gets HOT and the phones are all designed to dissipate and move that heat away from the chip to prevent throttling. The S line vapor chambers have been increasing over the years, and the S25 Ultra has the biggest yet. As this moves heat from the chip, the back of the phone WILL GET HOT as it moves heat away.

If the phone is genuinely OVERHEATING, the phone will eventually tell you and worst case, shut down. I have only ever had this happen on my S10+ during a heavy video edit!

(for reference, its the same on my iphone, this isnt a Samsung or Android thing - of course ALL processors generate heat)

Hope this gives some assurance or peace of mind....and hopefully prevent a wave of 'overheat' 'hot' posts...!!

[smiley]

Thanks for the insight. I find the thermal guardian useful in the 'good guardians' application. You can also control your thermal threshold by a couple of degrees either way. This chart attached below can show if the phone is throttling back or not.

When you consider that normal PC processors have a large heatsink and can easily reach temperatures up to 100°C then it is not a wonder that phones can get a lot warmer under load and as they become powerful super-chips.

Processors and SoC (meaning System on Chip) in phones do not have the benefit of a large heatsink, so I think they do a pretty good job of dispersing the effects of this processor power.

Mine does warm up under load, as you mention this has to be expected under high usage conditions.

Smiley

[GusB]

Yes I use the same thing, and have cranked it up to the max

[UNKNOWNUSERNAME]

what do you guys recommend for thermal guardians? I have it but no idea how to properly use it

[GusB]

Well it's largely to monitor temperature and CPU use - you do have the option of raising the throttling temperature slightly

[smiley]

I personally leave it balanced, unless I want to get a benchmark result as high as possible or need a little more oomph.

But this elite SoC is so powerful i can't see it struggling much in any use case... perhaps extreme long period gaming.

I just occasionally check this graph to see just how hot things become. Tweaking available if necessary on occasions.

[MorningBlunt]

The clickiest of baits. Nice.

I'll take the warmth if it means performance gainz

[GusB]

💪