The GPRH1000RY1A9ER is a rugged outdoor smartwatch from Casio’s G-Shock Master of G Rangeman series, designed for extreme conditions. It features advanced sensors including GPS, altimeter, barometer, compass, and a wrist heart-rate monitor, making it ideal for outdoor adventures and sports. Built to withstand harsh environments, the watch is shock-resistant, mud-resistant, and water-resistant up to 200 m. It also offers solar-assisted charging, activity tracking, and Bluetooth connectivity for syncing with apps. The bold rescue-yellow design adds high visibility and a striking tactical look.
Basic Information
Case size : 60.6 × 53.2 × 20.3 mm
Weight : 92 g
Case and bezel material : Resin / Bio-based resin
Band : Bio-based resin band
Construction : Shock Resistant, Mud Resistant
Water resistance : 200-metre water resistance
Time adjustment : GPS signal reception: Manual receive (position information, time information)
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life : Charging system compatible with dedicated cable (requires device with Type-A USB terminal), Solar powered
Smartphone Link/App Connectivity Features
Smartphone Link feature : Mobile link (Automatic connection, wireless linking using Bluetooth)
Apps : CASIO WATCHES
App connectivity feature : Auto time adjustment, Easy watch setting, Time Zone setting
Approximately 300 world time cities, Notification function, Training analysis data, Activity history, Life log data, Sleep analysis data, Tide graph setting, Phone finder
Exterior
Glass : Mineral Glass
Compatible band size : 145 to 215 mm
Watch Features
World Time & Calendar: 38 cities, sunrise/sunset, moon data, tide graphs, full auto-calendar.
Timers & Alarms: 1-second stopwatch, countdown timer (up to 60 min), 4 daily alarms with snooze.
Display & Light: LED backlight (Super Illuminator), selectable illumination duration, power-saving mode.
Battery Life: 14–19 hours with GPS/heart rate active, up to 23 months in power-saving mode.
Other Features: Airplane mode, vibration alerts, 12/24-hour format, heart-rate and blood oxygen monitoring (for general health).
