| key specs |
| Display Size | 33mm | - |
| Compatible OS | Android, iOS | - |
| Strap Material | Leather | Silicone |
| Dial Shape | Round | Square |
| Display Type | AMOLED | - |
| Ideal For | Unisex | Unisex |
| Strap Colour | - | Black, Blue, Gold, Red, Silver |
| general |
| Brand | Garmin | Fire-Boltt |
| Model | D2 Mach 1 | Ninja Call 2 |
| Release date | March 28, 2022 | March 1, 2022 |
| Model Name | D2 Mach 1 | Fire-Boltt Ninja Call 2 |
| Dial Shape | Round | Square |
| Strap Material | Leather | Silicone |
| Size | Large | Regular |
| Touchscreen | Yes | Yes |
| Interchangeable Strap | Yes | - |
| Water Resistant | Yes | Yes |
| Usage | Aviation, Fitness, Outdoor | Fitness & Outdoor |
| Ideal For | Unisex | Unisex |
| Dial Colour | - | Black |
| Strap Colour | - | Black, Blue, Gold, Red, Silver |
| dimensions |
| Width | 47 | - |
| Height | 47 | - |
| Thickness | 14.5 | - |
| Diameter | 33 | - |
| Weight (g) | 70.00 | - |
| product details |
| Sensor | Compass, heart rate sensor, Accelerometer, Gyroscope, Ambient light sensor | SpO2 Monitoring, Heart Rate Monitor, Optical Heart Rate Sensor |
| Compatible Device | Android, iPhone | Android, iOS |
| Notification | Yes | Call, Text, Social Media |
| Battery Life | 11 days | 10 Days |
| Rechargeable Battery | - | Yes |
| connectivity features |
| Bluetooth | Yes | Yes |
| Wi-Fi | Yes | - |
| GPS | Yes | - |
| Call Function | - | Yes |
| Bluetooth Version | - | 5 |
| Call Features | - | calling |
| Other Connectivity Features | - | Smart notifications |
| platform and storage features |
| Compatible Operating System | Android, iOS | - |
| Internal Memory | 32GB | - |
| camera and display features |
| Display Resolution | 416x416 | 240x288 |
| Display Size | 33mm | - |
| Display Type | AMOLED | - |
| Scratch Resistant | Yes, Sapphire Glass | - |
| Other Display Features | - | Touch Screen |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | - |
| Compass | Yes | - |
| Calendar | Yes | - |
| Alarm Clock | Yes | Yes |
| Chronograph | Yes | - |
| Date & Time Display | Yes | Yes |
| Language | - | English |
| Number of Buttons | - | 1 |
| Other Fitness Features | - | Meditative breathing, sleep tracking, drink water reminders |
| Other Watch Functions | - | Stopwatch, sedentary reminders |
| audio and video features |
| Other Multimedia Features | - | Music control |