| key specs |
| Display Size | 42mm | 30mm |
| Compatible OS | Android | - |
| Dial Shape | Round | Round |
| Display Type | AMOLED | Super AMOLED |
| Ideal For | Unisex | Unisex |
| Strap Colour | - | Silver |
| Strap Material | - | Stainless Steel |
| general |
| Brand | Samsung | Samsung |
| Model | Galaxy Watch 4 Classic (42mm) | Gear S2 Smartwatch |
| Release date | August 11, 2021 | - |
| Model Name | Galaxy Watch 4 Classic | Gear S2 |
| Dial Shape | Round | Round |
| Size | Regular | Regular |
| Touchscreen | Yes | Yes |
| Interchangeable Strap | Yes | - |
| Water Resistant | IP68 | Yes |
| Water Resistance Depth | 5 ATM | - |
| Dial Material | Stainless Steel | Stainless Steel |
| Ideal For | Unisex | Unisex |
| Model Number | - | SM-R7200ZWAINU |
| Strap Material | - | Stainless Steel |
| Usage | - | Notifier |
| Strap Colour | - | Silver |
| Dial Colour | - | Silver |
| dimensions |
| Width | 41.5 | 42.3 |
| Height | 41.5 | 49.8 |
| Thickness | 11.2 | 11.4 mm |
| Weight (g) | 46.50 | 47.00 |
| product details |
| Sensor | Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart + Bioelectrical Impedance Analysis), Accelerometer, Barometer, Gyro Sensor, Geomagnetic Sensor, Light Sensor | Acc,Gyro,Hrm,Barometer, Ambient Light,Gps (3G Only) |
| Compatible Device | Android | Gear S2 Pairs With Samsung Smartphones Running On Android 4.3 Or Above, And At Least 1.5 Gb Of Ram/ Gear S2 Pairs With Non-Samsung Smartphones Running On Android 4.4 Or Above, And At Least 1.5 Gb Of Ram |
| Notification | Yes | - |
| Rechargeable Battery | Yes | Yes |
| Battery Life | - | 3 - 4 Days |
| Other Features | - | Wi-Fi Version: 802.11 B/G/N, Bluetooth Profiles: A2Dp, Avrcp, Battery Capacity: 250 Mah, Ultra Power Saving Mode, S Health, Settings, Music Player, Gallery, Buddy |
| connectivity features |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.0 | v4.1 |
| Wi-Fi | Yes | Yes |
| GPS | Yes | - |
| Call Function | - | Yes |
| Messaging Support | - | Yes |
| Email Support | - | Yes |
| Other Connectivity Features | - | Supports NFC |
| platform and storage features |
| Operating System | One UI Watch 3 | - |
| Compatible Operating System | Android | - |
| RAM | 1.5GB | 512 MB |
| Processor Name | Exynos W920 | Exynos 3250 |
| Internal Memory | 16GB | 4 GB |
| camera and display features |
| Display Resolution | 396x396 | 360 x 360 pixels |
| Display Size | 42mm | 30mm |
| Display Type | AMOLED | Super AMOLED |
| Scratch Resistant | Gorilla Glass DX | - |
| fitness and watch functions |
| Step Count | Yes | - |
| Calorie Count | Yes | - |
| Heart Rate Monitor | Yes | - |
| Compass | Yes | - |
| Calendar | Yes | - |
| Alarm Clock | Yes | - |
| Date & Time Display | Yes | - |
| Language | English | - |
| Number of Buttons | 2 | - |
| Other Watch Functions | Heart rate, blood oxygen, SpO2 Sensor | Messages, Schedule, Weather, Find My Phone, Voice Memo, Stopwatch, Timer |
| Other Fitness Features | - | S Health - 24 Hrs Activity Tracker: Heart Rate Monitor, Exercise Tracker, Caffiene / Water Intake Tracker |
| audio and video features |
| Speaker | Yes | - |