The G-Shock GA-B2100 is an analog-digital watch with an octagonal case that carries over the shape of the GA-2100. It adds smartphone link and Tough Solar charging. The shock-resistant construction protects the module, and the uneven case shape keeps direct impacts off the glass and buttons.
A newly developed thin module with an optimized board layout works with the Carbon Core Guard structure, so the watch keeps the size of earlier models. It is water resistant to 20 bar, which covers daily water use, swimming, surfing and jet skiing. The solar panel and a large-capacity secondary battery power the watch from even small amounts of light.
With the G-SHOCK WATCHES app, the watch connects over Bluetooth to a compatible iPhone or Android phone. The app enables automatic time adjustment, easy watch setup, a phone finder, a time and place reminder, and world time for about 300 cities. The watch itself shows world time for 38 cities plus UTC. It also has a stopwatch, a timer, five alarms, a full auto calendar, and a double LED light. A hand-retract function moves the hands aside when they cover the LCD display.
- Model
- GA-B2100-1AJF
- Color
- Black
- Water resistance
- 20 bar
- Power
- Tough Solar charging with a rechargeable secondary battery
- Connectivity
- Bluetooth mobile link; requires the G-SHOCK WATCHES app on a compatible iPhone or Android phone
- World time
- 38 cities (38 time zones, automatic daylight saving) plus UTC
- Stopwatch
- 1/100 second (under 1 hour), 1 second (1 hour or more); 24-hour measuring, lap/split
- Timer
- Set in 1-second units, up to 60 minutes
- Lighting
- Double LED light with afterglow, selectable 1.5 or 3 seconds