| key specs |
| Display Size | 41mm | 36mm |
| Strap Material | Milanese | Stainless Steel |
| Dial Shape | Round | Round |
| Ideal For | Unisex | - |
| Strap Colour | - | Pink, Beige, Black, and Silver |
| Compatible OS | - | Android, iOS |
| Display Type | - | OLED |
| general |
| Brand | Xiaomi | Fire-Boltt |
| Model | Watch S4 41mm | Destiny |
| Release date | September 24, 2025 | July 7, 2023 |
| Dial Shape | Round | Round |
| Strap Material | Milanese | Stainless Steel |
| Size | Regular | - |
| Touchscreen | 1.32 | Yes |
| Water Resistant | 5ATM | IP67 |
| Water Resistance Depth | 50 m | - |
| Usage | Regular | - |
| Dial Material | Stainless steel | Metal |
| Ideal For | Unisex | - |
| Model Name | - | Destiny |
| Dial Colour | - | Black |
| Strap Colour | - | Pink, Beige, Black, and Silver |
| dimensions |
| Width | 41.2 | - |
| Height | 41.2 | - |
| Diameter | 9.5 | - |
| Weight (g) | 32.00 | - |
| product details |
| Sensor | Heart rate sensor (with blood oxygen sensor), Accelerometer, Gyroscope, Ambient light sensor, Electronic compass, Barometer sensor, Temperature sensor | SpO2 sensor, Heart Rate tracker, Sleep tracker, Female health tracker |
| Battery Type | 320mAh | - |
| Battery Life | 8 days | - |
| Compatible Device | - | Android, iOS |
| Notification | - | Yes |
| Notification Type | - | Smart Notification |
| Rechargeable Battery | - | Yes |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Yes | Bluetooth |
| Bluetooth Version | 5.4 | - |
| GPS | Yes | - |
| Messaging Support | - | Yes |
| Email Support | - | Yes |
| platform and storage features |
| Operating System | Xiaomi HyperOS 3 | - |
| Compatible Operating System | - | Android, iOS |
| camera and display features |
| Display Resolution | 466 × 466 | 360x360 pixels |
| Display Size | 41mm | 36mm |
| Other Display Features | 1500nits, 60Hz refresh rate | HD Display |
| Display Type | - | OLED |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | - |
| Calorie Count | - | Yes |
| Number of Buttons | - | 1 |
| Other Fitness Features | - | Activity Tracker, Breathe, 123 Sports Mode Tracking, Calorie Tracker, |
| Other Watch Functions | - | Alarm Clock, Bluetooth Calling, Voice Assistance, In Built Mic & Speaker, IP67 Rating, 4GB Storage, Calculator, Music Player, Notifications, Pedometer, Phone Call, |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Other Multimedia Features | - | Music control, Remote camera control |