Display Size: 1.2 in. 240 x 240 (64 colors)

Display Type: Touch Screen Memory LCD

Screen Material: Sapphire Glass

Bezel Material: Titanium Alloy

Cover Material: Aluminum

Strap Material: Silicone

Quick Release Band: 22mm

Physical Size:47 x 47 x 13.4 mm

Weight With Silicone Band: 59 g

Weight With Nylon Band: 49 g

Phone Connection: Bluetooth

Accessory Connection: ANT+/Bluetooth

Sensors: Optical Pulse Oximeter
Optical Heart Rate Monitor
Barometric Altimeter
Accelerometer
Compass
Gyroscope
Thermometer

Waterproof Rating:10ATM (100 Meters/328 Feet)

Working Temperature: 14°F to 140°F (-10°C to 60°C)

Storage Temperature: -4°F to 158°F (-20°C to 70°C)

Charging Time: Less than 2 Hours