M6 Steel Strap Bluetooth Smart Bracelet, IP68 Waterproof, Support Remote Camera / Heart Rate Monitor / Information Reminder / Anti-lost / Sedentary Reminder, Compatible with both Android and iOS System
This is a huge upgrade from my charge 2. I wish the instructions were so vague. I still need to figure how to stop it after an exercise. I set up the alarms several times and after about a week they finally started working.
[5 of 5 Stars!] 
