iPhone heats up easily

When i play roblox on my phone it starts getting hot easily and its been doing this for months now and it makes it harder to play cause you lag when the phone is heating, is there anything i can do to fix this? or is this permanent?

iPhone 11

Posted on Jun 10, 2023 01:01 PM

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Posted on Feb 9, 2024 11:20 PM

dawg I can play for like 15 minutes then it crashes 💀

7 replies

Jun 10, 2023 01:04 PM in response to waitufr

If you are plugging it in to charge when playing try without charging, or with a smaller charger. You can also try dimming the screen.


I can give a general answer, but if it is a graphics-intensive app it will get warm; that’s just physics:


It’s called the Second Law of Thermodynamics. Anything that creates or uses energy does so with some loss. That lost energy is expressed as heat. So when you charge the phone it generates heat in the power source, heat in the charger circuit in the phone, and heat as the energy goes into the battery. The faster the charging, the more heat is generated. Likewise when you discharge the battery; not all of the energy from the battery gets to the circuits that use it. Some of it becomes heat. 


If you use the cellular network for voice or data, converting energy to radio frequency signals is very wasteful; only about 30% of the energy that goes into the network components comes out as radio signals, the other 70% becomes heat. And signal strength matters; a 1 bar signal requires that the phone boost its transmitter power to maintain a connection, and it isn’t linear. 1 bar uses 10 times as much energy as 4 bars. You didn’t mention your phone model, but an iPhone 12 or newer (including SE 3rd edition) with a 5G signal uses about twice as much energy as an LTE signal, and 5G towers are still not as densely distributed as LTE, so the signal is likely to be weaker, compounding the problem.

Jun 11, 2023 07:13 AM in response to waitufr

waitufr wrote:

im using the iPhone 11 sir

That doesn’t change anything I posted. EVERY cell phone, since the beginning of the cell phone era, has gotten warm when in use. My first Motorola in around 1990 burned my ear if I made a call longer than 5 minutes. And every phone I have owned since then gets warm in use, and that’s over a dozen different phones. Physics Rules!

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iPhone heats up easily

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