In depth comparison and review of Samsung Galaxy Watch4 and Samsung Galaxy Watch6 Classic. Compare sizes, functions, displays, batteries and other important specifications and features to easily choose the right smartwatch for you. Our goal is to help you uncover differences between the products and find the watch that will best fit your needs.
| GENERAL | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Wear OS by Samsung | Wear OS by Samsung |
| Supported Host Device OS | Android 6.0 (Marshmallow) or later | Android 10 or later |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 39.3 mm | 42.5 mm |
| Height | 40.4 mm | 42.5 mm |
| Depth | 9.7 mm | 10.9 mm |
| Weight | 25.9 g | 52 g |
| Body Material | Aluminium | Stainless steel |
| Protection | Waterproof | Water-resistant |
| Colours | - | Black | Silver |
| Clock Display | Yes | Yes |
| FEATURES | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Sensors | Accelerometer, ambient light sensor, barometer, gyro sensor, bioimpedance sensor, electromagnetic compass, optical heart sensor, electrical heart sensor | Accelerometer, barometer, gyro sensor, hall sensor, geomagnetic sensor, optical heart sensor, electrical heart sensor, light sensor, infrared temperature sensor, bioelectrical impedance analysis sensor |
|---|---|---|
| Tracking Data | Distance, calories burned, activity, sleep activity, heart rate, steps taken, blood oxygen saturation, body composition, ECG, REM phases | Distance, calories burned, activity, sleep activity, heart rate, steps taken, skin temperature, body composition, ECG, REM phases, sleep quality score |
| Modes | - | 90+ exercise modes |
| Goal Setting | Yes | Yes |
| Features | Find phone function, VO2 max, automatic exercise recognition, personalised coaching | Camera remote control, find phone function, Emergency SOS, music playback control, Body composition measurement tool, Sleep Coaching, fast charge |
| Notifications | Calendar, SMS, social apps, incoming calls | Calendar, SMS, social apps, incoming calls, irregular rhythm |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | Audio alert, vibration alert, visual interface |
| Digital Player | MP3, WAV, AAC, AMR, M4A, OGG, 3GA, AWB, OGA | MP3, WAV, AAC, AMR, M4A, OGG, 3GA, AWB, OGA |
| Navigation (GPS) | GPS/GLONASS/Galileo/BeiDou receiver | GPS/GLONASS/Galileo/BeiDou receiver |
| CELLULAR | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Technology | WCDMA (UMTS) | - |
|---|---|---|
| Mobile Broadband Generation | 4G | - |
| SIM Card Type | Electronic SIM card (e-SIM) | - |
| CONNECTIVITY | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Wireless Interface | NFC, IEEE 802.11a/b/g/n, Bluetooth 5.0 | NFC, IEEE 802.11a/b/g/n, Bluetooth 5.3 |
|---|---|---|
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) |
| DISPLAY | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Type | Super AMOLED - colour | Super AMOLED - colour |
|---|---|---|
| Resolution | 396 x 396 pixels | 432 x 432 pixels |
| Screen Size | 1.19" | 1.3" |
| Aspect Ratio | Full circle | - |
| Pixel Density | 330 ppi | 330 ppi |
| Colour Depth | 24-bit (16.7 million colours) | 24-bit (16.7 million colours) |
| Screen Protection | Corning Gorilla Glass DX+ (scratch resistant glass) | - |
| Always On Display (AOD) | Yes | Yes |
| INPUT DEVICE | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Type | Touch sensitive screen, push buttons | Touch sensitive screen, rotating bezel, push buttons |
|---|
| CASE | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Case Size | 40 mm | 43 mm |
|---|---|---|
| Crystal Type | - | Sapphire crystal |
| Case Shape | Round | Round |
| Case Details | Pink gold | Black | Silver | - |
| BAND | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Band Type | Sport band | Band |
|---|---|---|
| Band Size | - | S/M |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | - | Hybrid eco-leather |
| Band Colour | Pink | Black | White | Black | Silver |
| STORAGE | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Storage Capacity | 16 GB | 16 GB |
|---|---|---|
| User Memory | 7.6 GB | 7.1 GB |
| RAM | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| RAM Size | 1.5 GB | 2 GB |
|---|
| CPU | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Manufacturer | Samsung | Samsung |
|---|---|---|
| CPU Type | Exynos W920 | Exynos W930 |
| Clock Speed | 1.18 GHz | 1.4 GHz |
| BATTERY | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Capacity | 247 mAh | 300 mAh |
|---|---|---|
| Battery Life | 40 hours | 40 hours |
| Battery Life Details | - | Typical usage (AOD Off) - up to 40 hour(s) Typical usage (AOD On) - up to 30 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Wireless Charging | Yes | Yes |
| Wireless Charging Standards | WPC, Wireless PowerShare | WPC |
| MISCELLANEOUS | Samsung Galaxy Watch4 | Samsung Galaxy Watch6 Classic |
|---|
| Included Accessories | Wireless charging dock | - |
|---|---|---|
| Preloaded Software | - | Google Maps, Samsung Wallet |
| Compliant Standards | MIL-STD 810G, IP68 | IP68, MIL-STD 810H |
| SAR Value | 0.729 W/kg (head), 2.594 W/kg (limb) | 0.288 W/kg (limb), 0.177 W/kg (head) |
| Max Depth of Water Resistance | 50 m | 50 m |
| Manufacturer Model Number | SM-R865F | SM-R950 |
| Warranty | 2-year warranty | - |
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