I had watch on my wrist and I felt regular vibration as if is is some notification. I saw Samsung screen we see before device turns off. I purchased it hardly 4 month ago.
Thank you for reaching out! I recommend having the watch evaluated by a certified technician. I would be happy to look into your repair options. Please send a private message with the full model code and the serial number/IMEI number of the watch. http://bit.ly/2XERsky