While the recent GPW-2000 Gravitymaster has a GPS tracking log (Mission Stamp) function, 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.
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 feature is used past its limit.
The exterior case of the new Rangeman strongly resembles the popular analog-digital GWG-1000 Mudmaster but is a little larger at 57.7 mm wide with a full digital LCD display capable of displaying pixels and graphics. This is the first time a pixel display like this comprises the entire display of a G-Shock. A ceramic case back (2 mm thick) allows for wireless charging, enhanced GPS reception, and full shock resistance.
The second-generation Rangeman is an extremely rugged and technologically advanced survival watch and raises the concept of the digital G-Shock to another level. The GPR-B1000 ushers in a new era of smart G-Shock watches.