| key specs |
| Dial Shape | Rectangle | Square |
| Ideal For | Unisex | Unisex |
| Strap Colour | - | Black, Blue, Gold, Green, Grey, Pink, Purple |
| Display Size | - | 43mm |
| Strap Material | - | Silicone |
| general |
| Brand | Fire-Boltt | Fire-Boltt |
| Model | Ninja Call Pro Plus | Ninja Bell |
| Release date | November 22, 2022 | June 1, 2022 |
| Dial Shape | Rectangle | Square |
| Touchscreen | Yes | Yes |
| Water Resistant | IP67 | Yes |
| Ideal For | Unisex | Unisex |
| Model Number | - | BSW040 |
| Model Name | - | Fire-Boltt Ninja Bell |
| Dial Colour | - | Gold |
| Strap Colour | - | Black, Blue, Gold, Green, Grey, Pink, Purple |
| Strap Material | - | Silicone |
| Size | - | Regular |
| Usage | - | Fitness & Outdoor |
| product details |
| Notification | Smart | Call, Text, Social Media |
| Battery Life | 6 days | - |
| Stand By Time | 15 days | 25 Days |
| Closure | - | Strap Buckle |
| Sensor | - | SpO2 Monitoring, Heart Rate Monitor, Optical Heart Rate Sensor |
| Compatible Device | - | Android, iOS |
| Rechargeable Battery | - | Yes |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | - | Yes |
| Call Features | - | Reject Calls, Take Calls, Speed Dial, Save Contacts, Call History, Calling Support via inbuilt Mic and Speaker |
| Other Connectivity Features | - | Smart notifications |
| fitness and watch functions |
| Heart Rate Monitor | Yes | Yes |
| Other Fitness Features | Drink water reminder, female health care, heart rate tracker, sedentary tracker, sleep monitoring, and SpO2 | Sleep tracking |
| Other Watch Functions | Camera control, music control, weather updates | Sedentary reminders |
| Step Count | - | Yes |
| Alarm Clock | - | Yes |
| Chronograph | - | Yes |
| Date & Time Display | - | Yes |
| Language | - | English |
| Number of Buttons | - | 1 |
| dimensions |
| Width | - | 44.17 |
| Height | - | 35.78 |
| Thickness | - | 11.6 |
| Diameter | - | 43 |
| Weight (g) | - | 51.00 |
| camera and display features |
| Display Resolution | - | 240x280 |
| Display Size | - | 43mm |
| Other Display Features | - | Touch Screen |