| key specs | 
| Display Size | 42mm | 42mm | 
| Compatible OS | Android | - | 
| Dial Shape | Round | Round | 
| Display Type | AMOLED | AMOLED | 
| Ideal For | Unisex | - | 
| Strap Colour | - | Khaki Leather Strap, Cyan Fluoroelastomer Strap, Rose Gold Milanese Strap,Black Fluoroelastomer Strap | 
| general | 
| Brand | Samsung | Huawei | 
| Model | Galaxy Watch 4 Classic (42mm) | Watch GT 2 (42mm) | 
| Release date | August 11, 2021 | September 1, 2019 | 
| Model Name | Galaxy Watch 4 Classic | - | 
| Dial Shape | Round | Round | 
| Size | Regular | - | 
| Touchscreen | Yes | Yes | 
| Interchangeable Strap | Yes | - | 
| Water Resistant | IP68 | 5ATM | 
| Water Resistance Depth | 5 ATM | 50 metres | 
| Dial Material | Stainless Steel | Stainless Steel | 
| Ideal For | Unisex | - | 
| Strap Colour | - | Khaki Leather Strap, Cyan Fluoroelastomer Strap, Rose Gold Milanese Strap,Black Fluoroelastomer Strap | 
| Dial Colour | - | Black Stainless Steel, Stainless Steel, Rose God Stainless Steel | 
| dimensions | 
| Width | 41.5 | 41.8 | 
| Height | 41.5 | 41.8 | 
| Thickness | 11.2 | 9.4 | 
| Weight (g) | 46.50 | 29.00 | 
| product details | 
| Sensor | Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart + Bioelectrical Impedance Analysis), Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor | Accelerometer, Gyroscope, Geomagnetic sensor,  Optical heart rate sensor,  Ambient light sensor, Air pressure sensor, Capacitive sensor | 
| Compatible Device | Android | Android 4.4 or later, iOS 9.0 or later | 
| Notification | Yes | Yes | 
| Rechargeable Battery | Yes | Yes | 
| Notification Type | - | SMS messages, Email, Calendar, and Social Media apps | 
| Battery Life | - | Up to 14-Days | 
| Other Features | - | Weather, Alarm, Timer, Stopwatch, Flashlight and Find My Phone. | 
| connectivity features | 
| Bluetooth | Yes | Yes | 
| Bluetooth Version | 5.0 | 5 | 
| Wi-Fi | Yes | - | 
| GPS | Yes | Yes | 
| Call Function | - | Yes | 
| Call Features | - | Bluetooth Calling | 
| platform and storage features | 
| Operating System | One UI Watch 3 | Kirin A1 | 
| Compatible Operating System | Android | - | 
| RAM | 1.5GB | - | 
| Processor Name | Exynos W920 | - | 
| Internal Memory | 16GB | - | 
| camera and display features | 
| Display Resolution | 396x396 | 454 x 454 | 
| Display Size | 42mm | 42mm | 
| Display Type | AMOLED | AMOLED | 
| Scratch Resistant | Gorilla Glass DX | - | 
| fitness and watch functions | 
| Step Count | Yes | Yes | 
| Calorie Count | Yes | Yes | 
| Heart Rate Monitor | Yes | Yes | 
| Compass | Yes | - | 
| Calendar | Yes | - | 
| Alarm Clock | Yes | - | 
| Date & Time Display | Yes | Yes | 
| Language | English | - | 
| Number of Buttons | 2 | 2 | 
| Other Watch Functions | Heart rate, blood oxygen, SpO2 Sensor | - | 
| audio and video features | 
| Speaker | Yes | - | 
| Microphone | - | Yes |