A:AnswerYes the Amazfit GTS is compatible with Samsung SM-A205U as longs as it is running Android OS 5.0 and above
No you can't make calls or answer calls on the watch ,however you can receive call notifications along with ignoring or muting the call
A:AnswerThe Amazfit GTS comes with a magnetic USB Charging cable , the battery doesn't need to be charged often due to the 14 day battery life so the battery doesn't die easily ,however the battery can't be changed if the battery dies please contact our support team at [email protected]
A:AnswerThe Amazfit Watches are synced to the time set on your mobile Phone, the clock on mobile phones are pretty accurate but in reference to if the clock on all mobile phones subscribe to the calculations used for Atomic watch timing , I am not sure.