| key specs |
| Display Size | 49mm | 33mm |
| Compatible OS | iOS | Android, iOS |
| Dial Shape | Rectangle | Round |
| Display Type | OLED Retina | AMOLED |
| Ideal For | Unisex | Unisex |
| Strap Material | - | Leather |
| general |
| Brand | Apple | Garmin |
| Model | Watch Ultra 2 | D2 Mach 1 |
| Release date | September 12, 2023 | March 28, 2022 |
| Model Name | Watch Ultra 2 | D2 Mach 1 |
| Dial Shape | Rectangle | Round |
| Size | Large | Large |
| Touchscreen | Yes | Yes |
| Water Resistant | Yes | Yes |
| Water Resistance Depth | 100m | - |
| Usage | Fitness & Outdoor | Aviation, Fitness, Outdoor |
| Ideal For | Unisex | Unisex |
| Strap Material | - | Leather |
| Interchangeable Strap | - | Yes |
| product details |
| Maximum Operating Altitude | 9000 | - |
| Sensor | Compass, Always-On Altimeter, heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor | Compass, heart rate sensor, Accelerometer, Gyroscope, Ambient light sensor |
| Compatible Device | iOS | Android, iPhone |
| Notification | Yes | Yes |
| Battery Type | Lithium Ion | - |
| Battery Life | 36 Hours | 11 days |
| Rechargeable Battery | Yes | - |
| connectivity features |
| Call Function | Yes | - |
| Bluetooth | Yes | Yes |
| Wi-Fi | Yes | Yes |
| GPS | Yes | Yes |
| Call Features | International Emergency Calling | - |
| Other Connectivity Features | Emergency SOS | - |
| platform and storage features |
| Operating System | watchOS 10 | - |
| Compatible Operating System | iOS | Android, iOS |
| Processor Name | S9 SiP | - |
| Internal Memory | - | 32GB |
| camera and display features |
| Display Size | 49mm | 33mm |
| Display Type | OLED Retina | AMOLED |
| Backlight Display | Yes | - |
| Other Display Features | LTPO OLED Always-On Retina display | - |
| Display Resolution | - | 416x416 |
| Scratch Resistant | - | Yes, Sapphire Glass |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | 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 | Blood Oxgen Sensor, ECG sensor | - |
| Chronograph | - | Yes |
| audio and video features |
| Speaker | Yes | - |
| Microphone | Yes | - |
| dimensions |
| Width | - | 47 |
| Height | - | 47 |
| Thickness | - | 14.5 |
| Diameter | - | 33 |
| Weight (g) | - | 70.00 |