I bought a Samsung S3 Frontier watch back in 6-13-2018.I have the same problems 4 Times with the same problem it go too rebooting mold is has been sent there 3 time to get fix with the same problem.Now had the same problem it happened on Dec 30 2019.Yes I know my warranty expired But still it was the same thing happened 3 times already.I am very disappointed with Samsung.I thought they had a lemon law 3 time.Yes my warranty is expired but Still.I will never buy a samsung product again.If you look at the reviews for this watch over 100 of people had the same thing wrong.Ho in reboot mode!!!!