| key specs |
| Display Size | 49mm | 44mm |
| Compatible OS | iOS | Android |
| Dial Shape | Rectangle | Round |
| Display Type | OLED Retina | AMOLED |
| Ideal For | Unisex | Unisex |
| Strap Colour | - | Black, Green, Silver |
| general |
| Brand | Apple | Samsung |
| Model | Watch Ultra 2 | Galaxy Watch 4 (44mm) |
| Release date | September 12, 2023 | August 11, 2021 |
| Model Name | Watch Ultra 2 | Galaxy Watch 4 |
| Dial Shape | Rectangle | Round |
| Size | Large | Large |
| Touchscreen | Yes | Yes |
| Water Resistant | Yes | Yes |
| Water Resistance Depth | 100m | 5 ATM |
| Usage | Fitness & Outdoor | - |
| Ideal For | Unisex | Unisex |
| Interchangeable Strap | - | Yes |
| Dial Material | - | Aluminium |
| Strap Colour | - | Black, Green, Silver |
| Dial Colour | - | Black, Green, Silver |
| product details |
| Maximum Operating Altitude | 9000 | - |
| Sensor | Compass, Always-On Altimeter, heart rate sensor, Accelerometer, Gyroscope, and Ambient light sensor | Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart + Bioelectrical Impedance Analysis), Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor |
| Compatible Device | iOS | Android |
| Notification | Yes | Yes |
| Battery Type | Lithium Ion | - |
| Battery Life | 36 Hours | - |
| Rechargeable Battery | Yes | 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 | NFC,GPS,Glonass |
| Bluetooth Version | - | 5.0 |
| platform and storage features |
| Operating System | watchOS 10 | One UI Watch 3 |
| Compatible Operating System | iOS | Android |
| Number of Cores | - | dual-core |
| Processor Name | S9 SiP | Exynos W920 |
| RAM | - | 1.5GB |
| Processor Speed | - | 1.18GHz |
| Internal Memory | - | 16GB |
| camera and display features |
| Display Size | 49mm | 44mm |
| Display Type | OLED Retina | AMOLED |
| Backlight Display | Yes | - |
| Other Display Features | LTPO OLED Always-On Retina display | - |
| Display Resolution | - | 450x450 |
| Scratch Resistant | - | Yes, Gorilla Glass DX |
| fitness and watch functions |
| Step Count | Yes | Yes |
| Calorie Count | Yes | 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 | English |
| Other Fitness Features | Blood Oxgen Sensor, ECG sensor | - |
| Number of Buttons | - | 2 |
| Other Watch Functions | - | Heart rate, blood oxygen, SpO2 |
| audio and video features |
| Speaker | Yes | Yes |
| Microphone | Yes | - |
| dimensions |
| Width | - | 44.4 |
| Height | - | 43.3 |
| Thickness | - | 9.8 |
| Weight (g) | - | 30.30 |