| key specs |
| Display Size | 49mm | 45mm |
| Compatible OS | iOS | Android, iOS |
| Dial Shape | Rectangle | Round |
| Display Type | OLED Retina | Super AMOLED |
| Ideal For | Unisex | - |
| Strap Material | - | Leather |
| general |
| Brand | Apple | Samsung |
| Model | Watch Ultra 2 | Galaxy Watch 3 (45mm) |
| Release date | September 12, 2023 | August 5, 2020 |
| Model Name | Watch Ultra 2 | Galaxy Watch 3 (45mm) |
| Dial Shape | Rectangle | Round |
| Size | Large | - |
| Touchscreen | Yes | Yes |
| Water Resistant | Yes | 5ATM + IP68 |
| Water Resistance Depth | 100m | 50 |
| Usage | Fitness & Outdoor | - |
| Ideal For | Unisex | - |
| Strap Material | - | Leather |
| Dial Material | - | Stainless Steel, Titanium |
| Dial Colour | - | Mystic Black, Mystic Bronze, Mystic Silver |
| product details |
| Maximum Operating Altitude | 9000 | - |
| Sensor | Compass, Always-On Altimeter, heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor | Accelerometer, Barometer, Gyro Sensor, Light Sensor, Optical Heart Rate Sensor, Electrical Heart Sensor |
| Compatible Device | iOS | Android 5.0 or later and with more than 1.5GB of RAM, iPhone 5 or later models with iOS 9.0 or later |
| Notification | Yes | Yes |
| Battery Type | Lithium Ion | - |
| Battery Life | 36 Hours | - |
| Rechargeable Battery | Yes | Yes |
| Charger Type | - | Wireless |
| 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 | Wi-Fi b/g/n, NFC, Glonass, Beidou, Galileo |
| Bluetooth Version | - | 5.0 |
| platform and storage features |
| Operating System | watchOS 10 | Tizen based Wearable OS 5.5 |
| Compatible Operating System | iOS | Android, iOS |
| Number of Cores | - | dual-core |
| Processor Name | S9 SiP | Exynos 9110 |
| RAM | - | 1GB |
| Internal Memory | - | 8GB |
| camera and display features |
| Display Size | 49mm | 45mm |
| Display Type | OLED Retina | Super AMOLED |
| Backlight Display | Yes | - |
| Other Display Features | LTPO OLED Always-On Retina display | - |
| Display Resolution | - | 360 x 360 |
| Scratch Resistant | - | Corning Gorilla Glass DX |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | - |
| Heart Rate Monitor | Yes | Yes |
| Altimeter | Yes | - |
| Compass | Yes | - |
| Calendar | Yes | Yes |
| Alarm Clock | Yes | Yes |
| Date & Time Display | Yes | Yes |
| Language | English | - |
| Other Fitness Features | Blood Oxgen Sensor, ECG sensor | - |
| Number of Buttons | - | 2 |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | Yes |
| Gesture Control | - | Yes |
| dimensions |
| Width | - | 45 |
| Height | - | 46.2 |
| Thickness | - | 11.1 |
| Weight (g) | - | 53.80 |