The quality of watch is so cheap.touch work is not good.touch is so hard.bettery life is not good.its bettery backup only 3 to 4 hours.in this bettery backup is must.it is very poor quality watch.connectivity of watch is very poor.buy some better expensive smart watch like samsung moto because the will keep you satisfier.inbuilt microphone quality is very poor.style and design is very poor.its like kids toy.it is not support sim card and sd card.its totally a piece of garbage.i do not suggest you to buy this cheap watch.thankyou.