Do Smartwatches emit radiation?
No. Smart watches emit microwaves and visible light. Neither are ionizing forms of radiation (they do not have the ability to strip electrons from your atoms); the only way they could actually hurt you is if there were enough to actually heat you up to the point of burning.
Is it safe to wear Apple watch while sleeping?
There is no absolute requirement to wear your Apple Watch in bed with the AutoSleep app. If you do, it uses the Watch’s sensors to establish when you sleep, and will then monitor movement and heart rate to provide a sleep score in the morning.
Is Apple watch good for health?
All around, Apple Watch inspires a healthier life. It monitors your heart rate and lets you know if something is wrong. Helps you keep track of your menstrual cycle and taps you if noise levels rise to a point that could impact your hearing.