Sensor: "Digital Crown Heart Rate Sensor, Accelerometer, Gyroscope, Ambient Light Sensor"
Notification: "Messages, Calendar, Activity, Phone, Mail"
Notification Type: "Gentle Tap Alert"
Talk time: "3 hr"
Charge Time: "90 min"
Battery Life: "18 hrs, 72 hrs (Power Reserve), 48 hrs (Time Piece), 6.5 hrs (Audio Playback), 6.5 hrs (Workout)"
Rechargeable Battery: "Yes"
Other Features: "7000 Series Aluminium Alloys, Aluminosilicate Ion-X Glass, Sapphire Shields, Interchangeable Strap, MagSafe Technology With Inductive Charging, Other Apps (Siri, Maps, Music, Remote, Wallet, Messages, Phone, Mail, Camera Remote, Weather, Stocks, Photos, Alarm, Calendar, Stopwatch, Timer, World Clock, Settings), App Store Apps, Switch Seamlessly from Apple Watch to iPhone, Press the Side Button to Access Multiple Friends Screens (12 Contacts), Swipe Up and Tap Glances (Weather, Heart Rate, Calendar), Digital Crown, Force Touch, Taptic Engine, Water Resistant (Can be Exposed to Sweat During Exercise and Can be Used While Washing Hands)"