Adam Kos Electronic devices generate heat, which is their natural behavior. Heat is generated by the way the individual components transmit information to each other and by the way they work themselves. This is also why the most powerful smartphones have a steel or aluminum frame, thanks to which I can dissipate the internal heat better. But do you know the ideal operating temperature of the iPhone?
The current summer is quite hot and it is not unusual for you to feel your iPhone heating up while using it. You don't have to do any complicated operations, and you can already feel it in the palm of your hand. Apple designs its devices to work well in a wide range of temperatures, but they have their limits.
Operating and storage temperatures
Apple itself also lists the operating temperatures for them. Therefore, if you use an iPhone or iPad, Apple recommends using them in an environment with temperatures between zero and plus 35 °C. This range is therefore taken as the operating temperature. But if we were to talk about the optimal temperature range, it is quite narrow. It moves between 16 and 22 °C. So it clearly follows that neither summer nor winter are exactly the seasons when our iPhones and iPads are at their best.
Use your iPhone in the shade
However, the operating temperature is different from the storage temperature. It clearly shows that the device is turned off. These are warehouses where devices are waiting for their new owners, but this range also determines the temperatures at which devices can be transported, for example, to distribution, or at which you should store them in your home when they are inactive. So when the device is switched off, this temperature range is from -20°C to 45°C. The same range of storage temperatures also applies to MacBooks, but their operating temperature is set at a range from 10 to 35 °C.
As a general rule, whatever Apple device you own, do not expose it to temperatures higher than the said 35°C. The battery is the most susceptible to temperature, which in this case could result in a permanent reduction in its capacity. Simply then, your device will no longer last on a single charge as it did before.
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iPhone needs to cool down before use
If your device gets warm from initial setup, restoring from backup, wireless charging, using apps and games, or streaming video, this is still normal behavior and shouldn't put you over the limit. However, if you do so in high ambient temperatures, you will exceed the mentioned 35 °C very easily. Typically, this is for example navigation in a car while simultaneously charging an iPhone.
Apple has implemented protective elements in its iPhones, when they meet the safety standards applicable to information technology according to IEC 60950-1 and IEC 62368-1, in Europe they are under the designation EN60950-1. This means that when the iPhone reaches the limits, wireless charging will typically stop, the display will go dark or completely black, the mobile receiver will go into power saving mode, the LED will not be activated, and the power intended for applications and other functions of the phone will drop. It's a clear indicator that the device needs to be cooled down, otherwise you'll be followed by an overheating screen where you can no longer use the device (the emergency call works though).
Black screen. On the beach, my display completely went dark - dimming, so the phone was unusable. iPhone Maxpro - while Samsung and the crappy SE worked normally at the same temperatures. I sold my phone after the holiday, I don't want to have a device so sensitive to temperature. It's a shame, because the competition can handle it..
I have exactly the same experience with the iPhone 13pro. Older iPhones worked on the beach so that the display did not darken. It occurs to me that it might be related to the one for the motion display…