| Cost | $ | $$$ | $$ | $$$ |
| Secure tracking |  |  | | |
| Multi - purpose | | | | |
| | | | |
| Hardware Features | | | | |
| Waterproof casing | | | |  |
| Long distance tracking | | | | |
| User accessible battery | | | | |
| 2G | | | | |
| 3G | | | | |
| S.O.S. | | | | |
| Usable near other GPS devices | | | | |
| User replaceable SIM | | | | |
| Auto-start for pre-set time | | | | |
| Size | 80 x 50 x 20mm (max) | 50 x 50 x 16mm | 87 x 65 x 25 mm | 70 x 50 x 30 mm |
| Weight | 99g (max) | 71g | 114g | 62g |
| Software Features | | | | |
| Set to your own language | | | | |
| User programmable update interval | | | | |
| User programmable data store interval | | | | |
| Course overlay for major events | | | | |
| Telemetry uplink from sensors (heart rate, steps/cadence, power, etc) | | | | |
| Bluetooth programmable from smartphone | | | | |
| Track & compare multiple users | | | | |
| Data Capture | | | | |
| GPS | | | | |
| A-GPS | | | | |
| GLONASS | | | | |
| Galileo | | | | |
| BeiDou | | | | |
