WSD-F21HR-RDBGE

GPS-Compatible (includes GLONASS and MICHIBIKI (QZSS))

Color Maps - Compatible (supports offline use)

Operating system- Wear OS by Google

Display- 1.32" dual-layer display. Color TFT (320 x 300 pixels) and monochrome LCD

Touch screen- Capacitive touch screen (anti-fouling coating)

Water resistance-50 meters (5 bar)*1

Environmental Durability- MIL-STD-810G (U.S. military standard issued by the U.S. Department of Defense),*2

Low temperature resistance (-10 °C)

Sensors- Optical sensor (heart rate), compass (magnetic) sensor, pressure sensor (atmospheric pressure and altitude), accelerometer and gyrometer.

Heart rate measurement - yes

Microphone - yes

Vibrator - yes

Battery Lithium-ion battery

Wireless Connectivity- Bluetooth® V4.2 (low power),Wi-Fi (IEEE 802.11 b/g/n)

Buttons- MAP button, APP button, Power button

Charging Method- Magnetic charging terminal

Recharging time- Approximately 2.5 hours at room temperature

Battery life-(when GPS is not in use) Normal use (Auto power off color display*3)：Approx. 1.5 days

Multi-clock mode- (time display and sensors only)：Approx. 1 month

Battery Life-Running/hiking (with heart rate measurement): up to 20 hours