| key specs |
| Strap Colour | Gold black, Gunpowder black, Orange gold, Camo-green, Camo-black, Black, Silver, and Gold | Blue, Black |
| Display Size | 36mm | 48mm |
| Compatible OS | Android, iOS | - |
| Strap Material | Silicone | Silicone |
| Dial Shape | Round | - |
| general |
| Brand | Fire-Boltt | Dizo |
| Model | Grenade | Watch D2 |
| Release date | June 28, 2023 | February 3, 2023 |
| Model Name | Fire-Boltt Grenade Smartwatch | Watch D2 |
| Dial Colour | Black | Black |
| Dial Shape | Round | - |
| Strap Colour | Gold black, Gunpowder black, Orange gold, Camo-green, Camo-black, Black, Silver, and Gold | Blue, Black |
| Strap Material | Silicone | Silicone |
| Water Resistant | Yes | - |
| Size | - | Large |
| product details |
| Sensor | SpO2 sensor, Heart Rate tracker, Sleep tracker, Female health tracker | SpO2 sensor, Heart Rate tracker |
| Compatible Device | Android, iOS | - |
| Notification | Yes | Yes |
| Notification Type | Smart Notification | Smart Notification |
| Talk time | 2 days | - |
| Battery Life | 7 days | 7 days |
| Rechargeable Battery | Yes | Yes |
| Other Features | 350mAh battery | In-app GPS, mini-games, camera, music controls, find phone, weather forecast |
| Charge Time | - | 2.5 hours |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Bluetooth | - |
| GPS | - | Yes |
| Call Features | - | Noise cancellation |
| platform and storage features |
| Compatible Operating System | Android, iOS | - |
| camera and display features |
| Display Resolution | 360x360 pixels | - |
| Display Size | 36mm | 48mm |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Compass | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | - |
| Chronograph | Yes | - |
| Date & Time Display | Yes | Yes |
| Number of Buttons | 2 Pusher buttons | - |
| Other Fitness Features | Activity Tracker, Breathe, Voice Assistance, 123 Sports Mode Tracking, Calorie Tracker, Daily Workout Memory, Sedentary Reminder, Sleep Monitor | Gymnastics, dancing, taekwondo, horse riding, disc games, skipping ropes, hoverboards, menstrual tracking, drink water reminders |
| Other Watch Functions | Alarm Clock, Bluetooth Calling, Voice Assistance, In Built Mic & Speaker, Calculator, Music Player, In-built games | Set an alarm, find phone, call and message notifications, |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |
| Voice Control | Google Assistant, Siri | - |
| Other Multimedia Features | Music control | - |
| dimensions |
| Width | - | 25.59 cm |
| Height | - | 3.86 cm |
| Thickness | - | 1.21 cm |
| Weight (g) | - | 42.00 |