The new G-Shock Rangeman watch was first revealed at the 35th Anniversary event in New York City and is coming in April 2018. The updated edition of the iconic survival series launches with two models, the black GPR-B1000-1 and khaki GPR-B1000-1B.

The new Rangeman is the worlds first solar-assisted GPS navigation device and also has a Triple Sensor (alti/barometer, compass, thermometer) and Bluetooth connectivity. The watch has a low-temperature LCD display (-20C, -4F), sapphire crystal, and carbon fiber insert band for enhanced durability. It is water-resistant to 200 meters and like the original it is resistant to mud and dust.

The GPR-B1000 is the first G-Shock with the Navigation System feature. The watch can display the current location on a route or bearing to a destination in real-time. Tracking data can be saved automatically in intervals and point data (time/date, longitude/latitude, altitude, atmospheric pressure, and temperature) can be recorded with the push of a button. Up to 20 tracks and 60 points can be saved to the memory log. The Backtrack function allows the user navigate to the starting point, using track data to display the route and current bearing. New routes can be created and log data managed on a Bluetooth-connected smartphone with the G-Shock Connected app, with a 2D and 3D map display and timeline for tracking data. Photos taken with the phone while using GPS can be displayed in the timeline view.

A connected smartphone also allows the watch to sync with internet time servers, and time-syncing can also be done with GPS signals. Like the original, the new Rangeman has sunrise and sunset data and now also has a tide graph and moon data feature is used past its limit.

Another new feature is wireless charging with a USB-powered base station. On a full wireless charge of five hours, the watch can use GPS functions for about 33 hours. Four hours of solar charging in bright sunlight (50,000 lux) will provide about one hour of GPS use. A full charge combined with solar power can up the total usage time to 48 hours. Casio says that the solar charging keeps the time display powered at all times, regardless of the status of GPS functions. That sounds like the time display will remain working even if the GPS

Construction	Shock-resistant; low-temperature resistance (-20C / -4F); mud-resistant
Water Resistance	200 meters
GPS Signal Frequency	1575.42 MHz
GPS Signal Reception	Time-calibration (auto1, manual); acquisition of position information (manual) 1 GPS signals are received automatically when the watch recognizes they are available in the area.
Communication Specifications	Communication Standard	Bluetooth low energy
Signal Range	Up to 2 m (may differ depending on surrounding conditions)
GPS Navigation	Activity logs (up to 20 logs), track display (wide area map/magnified map switching), start-to-destination direct distance, bearing to destination, destination setting from Point Memory recordings, backtrack, activity time measurement, log use status
Point Memory	Up to 60 sets of point data (time, date, longitude/latitude, altitude, atmospheric pressure, temperature), point icons
Digital Compass	Measures and displays direction as one of 16 points; measuring range: 0 to 359; measuring unit: 1; 60 seconds continuous measurement; bidirectional calibration and magnetic declination correction; bearing memory (records and display one set of degree and direction); graphical display of north, south, east and west; auto horizontal compensation
Barometer	Measuring range: 260 hPa to 1,100 hPa (7.65 inHg to 32.45 inHg); measuring unit: 1 hPa (0.05 inHg); atmospheric pressure tendency graph (past 48 hours graph display); atmospheric pressure tendency alarm (arrow indicates significant pressure changes)
Altimeter	Measuring range: -700 m to 10,000 m (-2,300 ft. to 32,800 ft.); measuring unit: 1 m (5 ft.); relative altitude readings (-3,000 m to 3,000 m); altitude tendency graph
Thermometer	Measuring range: -10C to 60C (14F to 140F); measuring unit: 0.1C (0.2F)
World Time	39 cities (39 time zones2, daylight saving on/off) and Coordinated Universal Time; auto summer time (DST) switching 2 May be updated when connected to a smartphone.
Stopwatch	1 second; measuring capacity: 999:5959; measuring modes: elapsed time, split time
Countdown Timer	Measuring unit: 1 second (maximum 24 hours)
Alarm	4 daily alarms (with snooze alarm)
Other Functions	Mobile Link functions (world time: over 300 cities, auto time adjustment, One-Touch Time Adjustment, easy watch setting, phone finder, route setting and log data management in GPS navigation, tide graph, moon data); day and date display; full auto-calendar; auto LED backlight with afterglow: 1.5/3.0 seconds; battery level indicator; 12/24-hour format; airplane mode; button operation tone on/off; sunrise/sunset time display
Power Source	Solar powered system (solar-charging system), charging system compatible with wireless chargers (requires device with Type-A USB terminal)
Continuous Operation	With GPS use NORMAL (Intermittent reception): Approx. 33 hours HIGH RATE (Continuous reception): Approx. 20 hours Approx. two months more for non-GPS functions Without GPS use About 29 months with the power-saving function3 ON after full charge *3 Power-saving after a certain period in a dark location
Size of Case	60.3 57.7 20.2 mm
Total Weight	Approx. 142g