I just got my S20 ultra last week and this is my first ever flagship device. But after a week of using, I experience overheating issues especially while using the camera app for quite a long time. I've never experienced this before from my budget phones but this phone heats up so fast while using the camera. This is the most expensive phone I've ever bought and I'm so disappointed!!!
Yes I have already reported this to CSR. I have also done some troubleshooting. They advised me to try turning off mobile data or wifi when using the camera app. Yes, it does somehow fix the issue like it wont heat that much but why would I have to turn it off all the time every time I want to use my camera app? I just usually just leave them open with my budget phones and it won't have overheating problems. With this most expensive phone, it should perform better. I also posted this concern on Facebook and I can't believe a lot of people who have this phone experience this issue. I'm sorry but I now regret buying this phone. 😥
Its because we get the Exynos chipset compared to the Snapdragon models abroad. Experiencing heat like that while you open camera is normal and the phone in general has an inefficient chip. Its not a problem you can get fixed at CS.