| key specs | 
| Strap Colour | Black | - | 
| Display Size | 35mm | 50mm | 
| Compatible OS | Android and iOS | Android, iOS | 
| Strap Material | Silicone | Silicone | 
| Dial Shape | Round | Round | 
| Display Type | AMOLED | MIP | 
| Ideal For | Unisex | - | 
| general | 
| Brand | Garmin | Garmin | 
| Model | D2 Air X15 | Instinct 2X Solar Tactical Edition | 
| Release date | October 22, 2025 | May 25, 2023 | 
| Model Name | Garmin D2 Air X15 | - | 
| Dial Shape | Round | Round | 
| Strap Colour | Black | - | 
| Strap Material | Silicone | Silicone | 
| Size | Regular | - | 
| Water Resistance Depth | 5 ATM | - | 
| Usage | Fitness & Outdoor | - | 
| Ideal For | Unisex | - | 
| Water Resistant | - | 10 ATM | 
| dimensions | 
| Weight (g) | 38.00 | 67.00 | 
| Width | - | 50mm | 
| Height | - | 50mm | 
| Thickness | - | 14.5mm | 
| product details | 
| Sensor | Heart Rate Monitor, Stress, Sleep,  Pulse Ox blood oxygen | Multi-frequency Positioning, Barometric altimeter, Compass | 
| Compatible Device | Android and iOS | Android, iOS | 
| Notification | Call Notification, Smartphone Apps Notifications | Yes | 
| Battery Life | 10 days | 40 days; unlimited with solar | 
| Notification Type | - | Smart Notification | 
| Charger Type | - | Proprietary plug charger | 
| Stand By Time | - | 100 | 
| Rechargeable Battery | - | Yes | 
| Other Features | - | Night vision compatibility, dual position format, ballistics calculator, kill switch | 
| 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 | GPS, Glonass, Galileo, | 
| GPS | - | Yes | 
| Messaging Support | - | Yes | 
| Email Support | - | Yes | 
| platform and storage features | 
| Compatible Operating System | Android and iOS | Android, iOS | 
| RAM | 8GB | - | 
| Internal Memory | - | 64MB | 
| camera and display features | 
| Display Resolution | 454 x 454 | 176 x 176 | 
| Display Size | 35mm | 50mm | 
| Display Type | AMOLED | MIP | 
| Flash | - | Yes | 
| Scratch Resistant | - | Yes | 
| fitness and watch functions | 
| Step Count | Yes | Yes | 
| Calorie 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 | - | 
| Other Fitness Features | - | Step counter, Move bar, Auto goal, Calories burned, Floors climbed, Distance traveled, Move IQ, | 
| Other Watch Functions | - | Alarm Clock, Bluetooth Calling, Voice Assistance, In Built Mic & Speaker,  Calculator, Notifications, Pedometer, Incident detection, safety and tracking features |