A smartphone getting slightly warm during gaming, charging, video recording or other demanding activities is usually normal. However, if your phone regularly becomes very hot, even when you are doing simple tasks, there may be something that needs attention.
Excessive heat can affect the phone’s performance and may contribute to faster battery ageing over time. Fortunately, you can try several simple and safe methods to reduce unnecessary heat without putting the device at risk.
In this guide, we will look at the common reasons phones get hot and 10 practical ways to cool them down.
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Why Does a Phone Get Hot?
Your smartphone produces heat whenever its processor, display, battery, camera and network components are working. The more demanding the task, the more power the phone may use, which can result in additional heat.
Gaming, video editing, high-resolution recording, GPS navigation and large downloads can put extra load on the hardware.
The surrounding environment also matters. A phone left in direct sunlight, inside a hot car or near a sunny window can become much hotter because heat cannot escape easily.
Charging can also make a smartphone warm. Fast charging may produce additional heat, and using the phone for demanding tasks while charging can increase it further.
A warm phone during heavy use is generally not unusual. However, repeated overheating during basic activities, frequent temperature warnings or excessive heat should not be ignored.
1. Move Your Phone Away From Direct Sunlight
Direct sunlight can raise the temperature of a smartphone surprisingly quickly. This can happen when the device is left on a car dashboard, near a sunny window or outdoors on a hot day.
If your phone starts getting too warm, move it to a shaded, cool and dry location. Stop demanding activities and allow the device to return to a normal temperature naturally.
Never try to cool a hot smartphone by placing it inside a refrigerator or freezer. The sudden change in temperature can create condensation and potentially damage internal components.
2. Stop Gaming and Other Heavy Tasks
Graphics-intensive games can put a significant load on the processor and graphics hardware. Other activities such as video editing, long camera recordings and some demanding applications can also generate additional heat.
If the phone becomes unusually hot, stop the activity for a while and leave the device idle.
Many smartphones have built-in thermal management. When the temperature rises too much, the phone may automatically reduce performance to control heat. This is commonly known as thermal throttling.
You may notice slower performance until the phone returns to a more normal temperature.
3. Remove a Thick Phone Case Temporarily
A thick protective case can sometimes make it harder for heat to escape, particularly when the phone is already under heavy load.
If your smartphone feels unusually hot, remove the case temporarily and place the device on a cool, dry and open surface.
There is no need to stop using a protective case permanently. Once the phone returns to its normal temperature, you can put the case back on.
4. Reduce the Screen Brightness
Keeping the display at maximum brightness for long periods can increase power consumption. Lowering the brightness can therefore help reduce unnecessary power usage.
Try reducing the brightness manually or enable automatic brightness if your phone supports it.
You can also shorten the screen timeout so the display turns off sooner when you are not actively using the phone.
If your phone supports a 90Hz, 120Hz or higher refresh rate, switching to a lower setting can also reduce power consumption in situations where you do not need maximum screen smoothness.
5. Look for Apps Consuming Too Much Battery
You do not need to manually close every application on your smartphone. Modern Android and iPhone devices are designed to manage apps and system resources automatically.
However, an app can occasionally develop a problem and continue consuming an unusual amount of power in the background.
If your phone is getting hot without an obvious reason, open the battery usage section in Settings. Check whether a particular app is using significantly more battery than expected.
If you find one, check for an available update. You can also restrict its background activity or uninstall it if you do not need the application.
6. Avoid Heavy Phone Usage While Charging
Some warmth while charging is normal, but combining charging with intensive activities can increase the temperature further.
Try to avoid playing graphics-heavy games, editing videos or performing other demanding tasks while the phone is connected to the charger.
You should also charge your phone on a hard and open surface. Avoid placing it underneath a pillow, blanket or anything else that can trap heat around the device.
If the phone becomes extremely hot during charging, disconnect the charger and allow the device to cool down.
7. Use a Suitable Charger and Cable
The charger and cable can also affect charging performance and heat generation.
Whenever possible, use accessories recommended by the phone manufacturer or reliable compatible products that meet the required charging standards.
Check the cable and adapter if you notice unusual heating. Do not continue using a charger or cable that has exposed wires, damaged connectors or other visible damage.
If the charging port itself becomes unusually hot even when using suitable accessories, consider getting the device checked by the manufacturer or an authorised service centre.
8. Check Your Mobile Network Signal
A weak cellular signal can sometimes increase power consumption because the phone may need to work harder to maintain a network connection.
This can become more noticeable during long calls, mobile data usage or when travelling through areas with poor network coverage.
If a stable Wi-Fi connection is available, using Wi-Fi may reduce the phone’s reliance on a weak cellular connection.
When you are in an area with no mobile coverage and do not need calls or mobile data for an extended period, Airplane Mode can also stop the phone from continuously searching for a network.
9. Keep Your Phone and Apps Updated
Software problems can sometimes result in unusual processor activity or excessive battery consumption, which may contribute to additional heat.
Keeping your operating system and installed applications updated can help address known bugs and performance issues.
On Android phones, the software update option is generally available inside Settings, although the exact menu can vary between manufacturers.
On an iPhone, you can check for updates by going to Settings > General > Software Update.
Also check the apps installed on your phone for pending updates. If the overheating started after installing a particular application, updating or removing that app may help determine whether it is related to the problem.
10. Restart Your Smartphone
A simple restart can sometimes solve temporary software-related problems.
Restarting the phone stops active processes and gives the operating system a fresh start. If your device becomes hot even though you are not gaming, charging or using another demanding feature, restart it and monitor the temperature afterward.
A restart cannot fix a damaged battery or faulty hardware, but it is an easy troubleshooting step when the problem may be related to software.
What to Do If Your Phone Overheats While Charging
A smartphone may become slightly warm during charging, especially when fast charging is enabled. However, it should not become extremely hot every time you plug it in.
If this happens regularly, check the charger, cable and charging port. Also make sure the phone is not charging in direct sunlight, inside a hot vehicle or underneath bedding.
Many modern smartphones include built-in temperature protection. If the device becomes too hot, it may slow down charging, reduce performance or temporarily stop charging until the temperature decreases.
If excessive heating continues even after changing the charging conditions and accessories, consider getting the phone inspected.
Can Excessive Heat Damage a Phone Battery?
Repeated exposure to high temperatures can accelerate the ageing of lithium-ion batteries. Over time, this may reduce the battery’s ability to hold a charge.
Modern smartphones include temperature-management features to help protect the hardware, but avoiding unnecessary heat is still a good habit.
Keeping the phone away from direct sunlight, avoiding heavy tasks when the device is already hot and charging it in a well-ventilated area can help reduce unnecessary thermal stress.
Quick Ways to Reduce Phone Heat
| Possible Cause | What You Can Do |
|---|---|
| Direct sunlight | Move the phone to a shaded location |
| Heavy gaming | Stop the game and let the device rest |
| Charging | Avoid demanding tasks while charging |
| High brightness | Reduce the screen brightness |
| Problematic app | Check battery usage and update the app |
| Thick case | Remove the case temporarily |
| Weak mobile signal | Use reliable Wi-Fi when available |
| Temporary software issue | Restart the phone |
| Outdated software | Install available updates |
| High refresh rate | Temporarily switch to a lower refresh rate |
When Should You Be Concerned About Phone Overheating?
A phone becoming warm during gaming, charging or extended camera use is different from a device becoming extremely hot during simple everyday tasks.
Pay closer attention if your smartphone repeatedly overheats without an obvious reason, frequently displays temperature warnings or becomes too hot to comfortably hold.
A swollen battery is a more serious warning sign. If the back of the phone starts lifting, the battery appears swollen, you notice an unusual smell or there is visible battery damage, stop using and charging the device.
Do not press, puncture or attempt to repair a swollen battery yourself. Contact the manufacturer or an authorised service centre for assistance.
How to Prevent Your Phone From Overheating
The first step is to identify what your phone was doing when it started getting hot. Gaming, charging, direct sunlight, high screen brightness, demanding applications and weak network signals can all contribute to increased heat.
Try to keep your smartphone away from extreme temperatures, use suitable charging accessories and install software updates when they are available.
When the phone becomes unusually warm, stop demanding activities and allow it to cool naturally. Avoid quick-cooling methods such as putting the device inside a refrigerator or freezer because sudden temperature changes can create condensation.
If your phone continues to overheat during normal use despite trying these steps, consider having it checked by the manufacturer or an authorised service centre. Persistent overheating can sometimes be related to the battery, charging system or another hardware component.
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Final Thoughts
A warm smartphone is not always a sign of a serious problem. Gaming, charging, high screen brightness, poor network coverage and other demanding activities can naturally increase the temperature of a device.
The important thing is to pay attention when the heat becomes excessive or happens repeatedly without an obvious reason. Simple steps such as moving the phone away from sunlight, reducing demanding usage, checking battery-hungry apps and using proper charging accessories can often help.
Most importantly, avoid extreme cooling methods and never try to repair a swollen or damaged battery yourself. If the phone continues to become unusually hot during normal use, getting it checked by an authorised service centre is the safer option.
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