| key specs |
| Strap Colour | Gold black, Gunpowder black, Orange gold, Camo-green, Camo-black, Black, Silver, and Gold | Black, Green, Pink |
| Display Size | 36mm | - |
| Compatible OS | Android, iOS | Android, iOS |
| Strap Material | Silicone | Silicone |
| Dial Shape | Round | Rectangle |
| general |
| Brand | Fire-Boltt | Amazfit |
| Model | Grenade | Bip U |
| Release date | June 28, 2023 | October 15, 2020 |
| Model Name | Fire-Boltt Grenade Smartwatch | Bip U |
| Dial Colour | Black | Black, Green, Pink |
| Dial Shape | Round | Rectangle |
| Strap Colour | Gold black, Gunpowder black, Orange gold, Camo-green, Camo-black, Black, Silver, and Gold | Black, Green, Pink |
| Strap Material | Silicone | Silicone |
| Water Resistant | Yes | 5 ATM |
| Size | - | Regular |
| Touchscreen | - | Yes |
| Interchangeable Strap | - | Yes |
| Water Resistance Depth | - | 50 metres |
| Dial Material | - | Polycarbonate |
| product details |
| Sensor | SpO2 sensor, Heart Rate tracker, Sleep tracker, Female health tracker | BioTracker 2 PPG Biological optical sensor, 6-axis acceleration sensor |
| Compatible Device | Android, iOS | Android, iOS |
| Notification | Yes | Yes |
| Notification Type | Smart Notification | - |
| Talk time | 2 days | - |
| Battery Life | 7 days | 9 days |
| Rechargeable Battery | Yes | - |
| Other Features | 350mAh battery | - |
| Charge Time | - | 2 hours |
| Charger Type | - | 2 Pogo Pin Charger |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Bluetooth | Yes |
| Bluetooth Version | - | 5.0 |
| Wi-Fi | - | Yes |
| platform and storage features |
| Compatible Operating System | Android, iOS | Android, iOS |
| Operating System | - | RTOS |
| camera and display features |
| Display Resolution | 360x360 pixels | 320x302 |
| Display Size | 36mm | - |
| Other Display Features | - | Anti-Fingerprint Coating, 2.5D Corning Gorilla Glass 3 |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | Yes |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Chronograph | Yes | - |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 2 Pusher buttons | 1 |
| Other Fitness Features | Activity Tracker, Breathe, Voice Assistance, 123 Sports Mode Tracking, Calorie Tracker, Daily Workout Memory, Sedentary Reminder, Sleep Monitor | 60 sports modes |
| Other Watch Functions | Alarm Clock, Bluetooth Calling, Voice Assistance, In Built Mic & Speaker, Calculator, Music Player, In-built games | 24 hour heart rate monitoring, sleep quality monitoring, blood oxygen level sensor, menstrual cycle tracker |
| Language | - | English |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Voice Control | Google Assistant, Siri | - |
| Other Multimedia Features | Music control | show notifications, control music, set alarms, remote control the phone’s camera |
| dimensions |
| Width | - | 35.5 |
| Height | - | 40.9 |
| Thickness | - | 11.4 |
| Weight (g) | - | 31.00 |