SPECIFICATIONS
Specifications
Figures come from the specification summary in the user manual. Battery life varies with sample rate and how long the screen stays lit.
Display and controls
| Display | 240 × 240 full-colour TFT |
|---|---|
| Buttons | Four physical buttons (UP / DOWN / OK / BACK) + backlight button (doubles as LAP during a session) |
| Watch faces | 8 |
| Other features | Time, alarm, compass, barometer |
Positioning
| Built-in GNSS | Sony CXD5605GF, supporting GPS / GLONASS / BeiDou / Galileo / QZSS / SBAS |
|---|---|
| Positioning accuracy | 2DRMS 1.0 m (at a signal strength of −130 dBm) |
| Time to first fix | About 35 s cold start; about 2 s hot start (real-world times depend on how much sky is obstructed) |
| GPS source | Built-in GPS / external RaceBox Mini (Bluetooth, with G-force) / external Qstarz BL-1000GT, BL-818GT (Bluetooth) |
| Data update rate | RaceBox Mini up to 25 Hz; built-in GPS up to 5 Hz (1 Hz in power-saving mode); Qstarz about 5.6 Hz |
Sensors
| Motion | 3-axis accelerometer + 3-axis magnetometer (compass, vehicle roll and pitch) |
|---|---|
| Barometer | Barometric sensor (altitude and pressure trend) |
Connectivity and records
| Connectivity | Bluetooth (phone app, RaceBox, Qstarz); USB (charging, reading records on a computer) |
|---|---|
| Records | Up to 300 records browsable on the watch; up to 200 laps per session |
| Phone app | iPhone |
Power
| Battery | Rechargeable lithium battery |
|---|---|
| Battery life | About 3 months on standby (not recording); about 1–2 weeks with daily wear and ordinary logging; about 8–12 hours with GPS and sensors running continuously |
| Charging | Supplied charging clip, USB; about 1 hour to 80% |
Physical
| Water resistance | 50 m (5 ATM). Fine for swimming, rain and washing your hands; not for diving, jumping into water or high-speed water sports, and keep it away from steam rooms, saunas, hot springs and hot showers. |
|---|---|
| Strap | Black: silicone strap; white: woven strap |
Platform
| Processor | MediaTek MT2523 (ARM Cortex-M4), 104 MHz |
|---|---|
| Memory | 4 MB RAM; 4 MB flash |
More detail is in the user manual.
Three GPS sources, switchable on the watch
Actual device screen
Switchable GPS source
Use the built-in GPS day to day. When you need a higher sample rate, pair a RaceBox Mini or a Qstarz — no need to change watches.
Samples per second
External RaceBox Mini
25 Hz positioning with measured g-force — suitable for track and acceleration logging.
25 Hz
External Qstarz
BL-1000GT and BL-818GT supported; about 5.6 Hz in our tests, no g-force.
5.6 Hz
Built-in GPS
5 Hz built in, switchable to 1 Hz to save battery; g-force is a derived value.
5 Hz
All three sources use the same recording format and sync to the app.