This band was so amazing I love this app becoz it perfectly tells me evrything when I wake up and when I sleep and how much calories I burn in my whole day it calculates my nerves twits and her vibration was so amazing it make you wakes up on any urgent call and vibration was so strong it can shake your whole hand and there is so much inbulit light in there actually it has 5 types of light everyone has its own function and on alarm it makes you up and if have any doubt that someone dont touch your phone you gone away from your phone phone will automatically lock and if you dont want to tell your password to anyone and dont want to open the lock in public then dont worry if you have band when you click the lock button they automatically unlock the phone and show the sign of band on phone on the upper right side of your phone makes you urge on every notification which comes in your phone it started by just touching it 3 times