Series: Pro Trek
Name: Casio WSD-F21HR-RDBGE ProTrek Smart Watch
Wireless Connectivity: Bluetooth® V4.2 (Low Energy)
Wi-Fi (IEEE 802.11 b/g/n)
Buttons:MAP button, Powerutton, APP button
Battery: Lithium-ion battery
Charging Method Magnetic charging terminal
Recharging Time Approx. 2.5 hours at room temperature
Battery Life (When GPS Not in Use) Normal use (color display): 1.5 days, roughly
Multi Timepiece Mode (timekeeping and sensors only)*³: 1 month, roughly
(Varies according to use)
Size of Case: Approx. 61.7mm×57.7mm×16.8mm (H×W×D)*4
Weight: Approx. 81g (including wristband)
OS: Wear OS by Google
Operating Environment: Wear OS by Google works with phones running Android 4.4+ (excluding Go edition) or iOS 10 or later.
Supported features may vary between platforms and countries.