| key specs |
| Strap Colour | Black, Blue, Gold, Red, Silver | Brown |
| Strap Material | Silicone | - |
| Dial Shape | Square | Round |
| Ideal For | Unisex | Unisex |
| Display Size | - | 34mm |
| Compatible OS | - | Android, iOS |
| Display Type | - | AMOLED |
| general |
| Brand | Fire-Boltt | Fire-Boltt |
| Model | Ninja Call 2 | Terra |
| Release date | March 1, 2022 | October 1, 2021 |
| Model Name | Fire-Boltt Ninja Call 2 | Terra |
| Dial Colour | Black | - |
| Dial Shape | Square | Round |
| Strap Colour | Black, Blue, Gold, Red, Silver | Brown |
| Strap Material | Silicone | - |
| Size | Regular | Regular |
| Touchscreen | Yes | Yes |
| Water Resistant | Yes | IP67 |
| Usage | Fitness & Outdoor | - |
| Ideal For | Unisex | Unisex |
| Model Number | - | BSW019 |
| product details |
| Sensor | SpO2 Monitoring, Heart Rate Monitor, Optical Heart Rate Sensor | Accelerometer Sensor, Barometer Sensor, Gyro Sensor, Light Sensor, Optical Heart Rate Sensor, SpO2 Sensor, Blood Pressure Monitor |
| Compatible Device | Android, iOS | Android, iPhone |
| Notification | Call, Text, Social Media | Yes |
| Battery Life | 10 Days | 7 days |
| Rechargeable Battery | Yes | Yes |
| Charger Type | - | Magnetic |
| Stand By Time | - | 15 days |
| connectivity features |
| Call Function | Yes | No |
| Bluetooth | Yes | Bluetooth |
| Bluetooth Version | 5 | 5.0 |
| Call Features | calling | - |
| Other Connectivity Features | Smart notifications | - |
| camera and display features |
| Display Resolution | 240x288 | 390x390 |
| Other Display Features | Touch Screen | Always-On Display |
| Display Size | - | 34mm |
| Display Type | - | AMOLED |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | English |
| Number of Buttons | 1 | - |
| Other Fitness Features | Meditative breathing, sleep tracking, drink water reminders | 15 sports modes |
| Other Watch Functions | Stopwatch, sedentary reminders | stress monitoring, drink water reminder, sedentary reminder, weather update, smart notification, sleep monitoring |
| Calorie Count | - | Yes |
| Calendar | - | Yes |
| Chronograph | - | No |
| audio and video features |
| Other Multimedia Features | Music control | music control, camera control |
| dimensions |
| Width | - | 138 |
| Height | - | 84 |
| Thickness | - | 32 |
| platform and storage features |
| Compatible Operating System | - | Android, iOS |