| key specs |
| Strap Colour | Black Camou, Black, Green Yellow, Black Yellow | Black, Blue, Pink |
| Display Size | 46mm | - |
| Dial Shape | - | Rectangle |
| Ideal For | - | Unisex |
| general |
| Brand | Fire-Boltt | Fastrack |
| Model | Shark | Limitless FS1 |
| Release date | May 17, 2023 | April 7, 2023 |
| Model Name | Shark | Fastrack Limitless FS1 |
| Dial Colour | Black | Black |
| Strap Colour | Black Camou, Black, Green Yellow, Black Yellow | Black, Blue, Pink |
| Water Resistant | IP67 | - |
| Dial Shape | - | Rectangle |
| Touchscreen | - | Yes |
| Usage | - | Fitness & Outdoor |
| Ideal For | - | Unisex |
| product details |
| Sensor | SpO2 sensor, Heart Rate tracker, Sleep tracker, Female health tracker | Heart Rate Monitor, Stress, Sleep |
| Compatible Device | Android, iOS | Android, iOS |
| Notification | Yes | - |
| Notification Type | Smart Notification | - |
| Stand By Time | 25 days | - |
| Rechargeable Battery | Yes | - |
| Other Features | Sleep Tracker, Alarm Clock, Breathe, Bluetooth Calling , Voice Assistance, Notifications, Phone Call, Camera, Sedentary Reminder, Time Display | - |
| Battery Type | - | 300 |
| Battery Life | - | 10 Days |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | Yes |
| Bluetooth Version | - | 5.3 |
| camera and display features |
| Display Resolution | 240x284 pixels | - |
| Display Size | 46mm | - |
| fitness and watch functions |
| Heart Rate Monitor | Yes | Yes |
| Number of Buttons | 2 | 1 |
| Other Fitness Features | 120+ Sports Mode Tracking, Calorie Tracker, Sedentary Reminder, Sleep Monitor, Female Health Tracker | - |
| Other Watch Functions | Remote Camera Control, Alarm, Timer, Stopwatch, Weather Forecast, Support For Multiple Watch Faces, In-built Games | - |
| Step Count | - | Yes |
| Calorie Count | - | Yes |
| Alarm Clock | - | Yes |
| Language | - | English |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |