| Technical details | |
| Version | OEM |
| Vendor | Fitbit |
| Design | |
| Product colour | Black |
| Band colour | Black |
| Closure type | Single prong strap buckle |
| Maximum strap length | 220 mm |
| Minimum strap length | 140 mm |
| Band size | S/L |
| Suggested gender | Unisex |
| Removable strap | Y |
| Device type | Wristband activity tracker |
| Waterproof up to | 50 m |
| Waterproof | Y |
| Form factor | Rectangle |
| Display | |
| Touchscreen | Y |
| Packaging content | |
| Number of bands included | 2 |
| Cables included | USB |
| Ports & interfaces | |
| Near Field Communication (NFC) | Y |
| Bluetooth version | 4.0 |
| Connectivity technology | Wireless |
| Bluetooth | Y |
| Wi-Fi | N |
| Weight & dimensions | |
| Width | 22.7 mm |
| Depth | 35.8 mm |
| Thickness | 12.5 mm |
| Performance | |
| Date indication | Y |
| Pedometer | Y |
| Vibrating motor | Y |
| Position location | Y |
| Active minutes | Y |
| Calories burned | Y |
| Distance travelled | Y |
| Personal goals | Y |
| Quality of sleep | Y |
| Workout tracking | Y |
| Hours slept | Y |
| Call notifications | Y |
| SMS notifications | Y |
| GPS (satellite) | Y |
| Alarm clock | Y |
| Heart rate sensor type | Optical |
| Heart rate monitor | Y |
| Altimeter | Y |
| Accelerometer | Y |
| Power | |
| Battery life | 7 day(s) |
| Battery life (GPS mode) | 5 h |
| Charging time | 2 h |
| Battery technology | Lithium Polymer (LiPo) |
| Rechargeable battery | Y |
| Operational conditions | |
| Operating temperature (T-T) | -20 - 60 °C |
| Operating altitude | 0 - 8535 m |
| System requirements | |
| Mobile operating systems supported | Android,iOS |
12 Months
