How accurate/correct is the sensor on galaxy S10 Plus that measures the SPO2 levels (blood oxygen level), heart rate and stress levels ? Is it as good as the pulse oximeter or other medical grade equipments/devices available in the market? 

Apparently the sim selection option has been removed from under the contact details. So every time you need to call someone from different sim, you have to change the preferred sim from either the settings or from notification panel or keep the optio...

Why does the face unlock feature work even when you keep your eyes closed in s10 plus ? Shouldn't it work with scanning the eyes also. "Biometrics". 

The live message icon on the top of Samsung keyboard is missing now after upgrading to android 10, specifically on the keyboard toolbar. I've got the emoji, mic, GIF, clipboard, stickers, keyboard size, settings, ... , and the option to add text edit...