| key specs |
| Strap Colour | Black | Green, Blue, and Rose Gold |
| Display Size | 35mm | - |
| Compatible OS | Android and iOS | Android, iOS |
| Strap Material | Silicone | Stainless Steel |
| Dial Shape | Round | Round |
| Display Type | AMOLED | - |
| Ideal For | Unisex | Women |
| general |
| Brand | Garmin | Fire-Boltt |
| Model | D2 Air X15 | Emerald |
| Release date | October 22, 2025 | August 9, 2023 |
| Model Name | Garmin D2 Air X15 | Fire-Boltt Emerald |
| Dial Shape | Round | Round |
| Strap Colour | Black | Green, Blue, and Rose Gold |
| Strap Material | Silicone | Stainless Steel |
| Size | Regular | Regular |
| Water Resistance Depth | 5 ATM | - |
| Usage | Fitness & Outdoor | - |
| Ideal For | Unisex | Women |
| Model Number | - | BSW066 |
| Interchangeable Strap | - | Yes |
| Water Resistant | - | IP68 |
| dimensions |
| Weight (g) | 38.00 | 60.00 |
| Width | - | 10cm |
| Height | - | 8.5cm |
| Thickness | - | 6.5cm |
| product details |
| Sensor | Heart Rate Monitor, Stress, Sleep, Pulse Ox blood oxygen | SpO2 sensor, Heart Rate tracker, Sleep tracker, Female health tracker |
| Compatible Device | Android and iOS | Android, iOS |
| Notification | Call Notification, Smartphone Apps Notifications | Yes |
| Battery Life | 10 days | - |
| Notification Type | - | Smart Notification |
| Talk time | - | 5 days |
| Battery Type | - | Lithium Ion |
| Charge Time | - | 2 hours |
| Rechargeable Battery | - | Yes |
| connectivity features |
| Call Function | Yes | Yes |
| Bluetooth | Yes | Bluetooth |
| Third Party App Support | Yes | - |
| Call Features | Make and Receive calls | - |
| Other Connectivity Features | GPS, Galileo, Glonass, Beidou, QZSS | - |
| Wi-Fi | - | Yes |
| platform and storage features |
| Compatible Operating System | Android and iOS | Android, iOS |
| RAM | 8GB | - |
| camera and display features |
| Display Resolution | 454 x 454 | 160x80 |
| Display Size | 35mm | - |
| Display Type | AMOLED | - |
| fitness and watch functions |
| Step Count | Yes | - |
| Calorie Count | Yes | - |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | - |
| Compass | Yes | Yes |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | - |
| Number of Buttons | - | 1 |
| Other Fitness Features | - | 100+ Sports Mode Tracking, Activity Tracker, Breathe, SpO2, Heart Rate Tracking, Multisport Tracker, Pedometer, Calorie Tracker, Daily Workout Memory, Distance Tracker |
| Other Watch Functions | - | In Built Mic & Speaker, Accelerometer, Alarm Clock, Music Player, Notifications, Camera, Sedentary Reminder |
| audio and video features |
| Speaker | - | Yes |
| Microphone | - | Yes |