Technical Summary MFR # FB501BKS Display Backlit monochrome touchscreen LCD Display Size 0.8 x 1.0" (20.9 x 24.4 mm) Wireless Connectivity Bluetooth 4.0 Wireless Range 20' (6 m) GPS Yes, 1 Hz sample rate Sensors 3-axis accelerometers 3-axis gyroscope Digital compass Optical heart rate monitor Altimeter Ambient light sensor Memory Detailed motion data: 7 days Daily totals: 30 days Heart rate data storage rate: 1 second interval during exercise, 5 second interval at other times Water Resistance Splashproof, 5 ATM Material Stainless steel, flexible elastomer Battery Type Lithium-polymer Battery Life Up to 7 days Battery Charge Time 1 to 2 hours Operating Temperature -4 to 113°F (-20 to 45°C) Maximum Operating Altitude 30,000' (9,144 m) System Requirements PC: Windows Vista and later, USB port, Internet connection Mac: OS X 10.6 and later, USB port, Internet connection
Fitbit FB501BKS Surge = Black Small
SKU: FB501BKS