智慧手环 2

"Smart Wristband 2" APP is an application which can syncs Smart band data to iPhone and network. This gives user real-time access to sport stats on the Smart band dashboard throughout the day. 
"Smart Wristband" APP tracks user sleep time, help to improve your sleep quality. Share and Compete with friends.

Continued use of GPS running in the background can dramatically decrease battery life.

This app may use your location even when it isn’t open, which can decrease device battery life