In depth comparison and review of Samsung Galaxy Watch4 Classic and Xiaomi Watch S1 Active. 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 Classic | Xiaomi Watch S1 Active |
|---|
| Product Type | Smart watch | Smart watch |
|---|---|---|
| Operating System | Wear OS by Samsung | - |
| Supported Host Device OS | Android 6.0 (Marshmallow) or later | iOS 10 or later, Android 6.0 (Marshmallow) or later |
| Activity/Sport | - | Multisport |
| Wearing Style | Watch style | Watch style |
| Audio Input | - | Microphone |
| Audio Output | - | Speaker |
| Width | 41.5 mm | - |
| Height | 41.5 mm | - |
| Depth | 11.2 mm | - |
| Weight | 46.5 g | - |
| Body Details | - | Case only: 36.3 g |
| Body Material | Stainless steel | Glass fibre reinforced polyamide |
| Protection | Waterproof | Water-resistant |
| Colours | - | Ocean blue | Moon white |
| Clock Display | Yes | Yes |
| FEATURES | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Sensors | Accelerometer, ambient light sensor, barometer, gyro sensor, hall sensor, bioimpedance sensor, electromagnetic compass, optical heart sensor, electrical heart sensor | Accelerometer, ambient light sensor, barometer, SpO2 sensor, geomagnetic sensor, optical heart sensor, PPG sensor, gyroscope |
|---|---|---|
| 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, blood oxygen saturation, stress level |
| Modes | - | 117 fitness modes, 19 professional modes |
| Goal Setting | Yes | Yes |
| Features | Find phone function, VO2 max, automatic exercise recognition, personalised coaching | Call handling, find phone function, flashlight, automatic exercise recognition, breathing training function, music playback control, weather information, customisable watch faces, Health index, Women's health |
| Notifications | Calendar, SMS, social apps, incoming calls | SMS, Email, social apps, incoming calls |
| Vibrating Alert | Yes | Yes |
| Feedback Type | Vibration alert, visual interface | Vibration alert, visual interface |
| Digital Player | MP3, WAV, AAC, AMR, M4A, OGG, 3GA, AWB, OGA | - |
| Navigation (GPS) | GPS/GLONASS/Galileo/BeiDou receiver | GPS/GLONASS/Galileo/BeiDou/QZSS receiver |
| Internet of Things (IoT) Compatible | - | Yes |
| IoT Intelligent Assistant | - | Alexa built-in |
| IoT Voice Controlled | - | Direct |
| CELLULAR | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Technology | WCDMA (UMTS) | - |
|---|---|---|
| Mobile Broadband Generation | 4G | - |
| SIM Card Type | Electronic SIM card (e-SIM) | - |
| CONNECTIVITY | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Wireless Interface | NFC, IEEE 802.11a/b/g/n, Bluetooth 5.0 | IEEE 802.11b/g/n, NFC, Bluetooth 5.2 |
|---|---|---|
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - |
| DISPLAY | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Type | Super AMOLED - colour | AMOLED - colour |
|---|---|---|
| Resolution | 396 x 396 pixels | 466 x 466 pixels |
| Screen Size | 1.2" | 1.43" |
| Aspect Ratio | Full circle | - |
| Pixel Density | 330 ppi | 326 ppi |
| Colour Depth | 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 Classic | Xiaomi Watch S1 Active |
|---|
| Type | Touch sensitive screen, rotating bezel, push buttons | Touch sensitive screen, push buttons |
|---|
| CASE | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Case Size | 42 mm | - |
|---|---|---|
| Case Shape | Round | Round |
| Bezel | - | Metal |
| Case Details | Black | Silver | Blue | Silver | Space black |
| BAND | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Band Type | Ridge sport band | Strap |
|---|---|---|
| Fits Wrist with Circumference | - | 160-220 mm |
| Changeable | Yes | Yes |
| Clasp Type | Buckle | Buckle |
| Band Material | Fluoroelastomer | TPU |
| Band Colour | Black | White | Blue | White | Black |
| STORAGE | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Storage Capacity | 16 GB | - |
|---|---|---|
| User Memory | 7.6 GB | - |
| RAM | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| RAM Size | 1.5 GB | - |
|---|
| CPU | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Manufacturer | Samsung | - |
|---|---|---|
| CPU Type | Exynos W920 | - |
| Clock Speed | 1.18 GHz | - |
| BATTERY | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Capacity | 247 mAh | 470 mAh |
|---|---|---|
| Battery Life | 40 hours | 12 day(s) |
| Battery Life Details | - | Typical usage - up to 12 days Power saving mode - up to 24 days GPS mode - up to 30 hour(s) |
| Rechargeable Battery | Yes | Yes |
| Recharge Time | - | 2.5 hour(s) |
| Wireless Charging | Yes | - |
| Wireless Charging Standards | WPC, Wireless PowerShare | - |
| MISCELLANEOUS | Samsung Galaxy Watch4 Classic | Xiaomi Watch S1 Active |
|---|
| Included Accessories | Wireless charging dock | Magnetic charging cable |
|---|---|---|
| Compliant Standards | MIL-STD 810G, IP68 | GB/T 30106-2013 |
| SAR Value | 0.538 W/kg (head), 1.131 W/kg (limb) | - |
| Max Depth of Water Resistance | 50 m | 50 m |
| Max Operating Temperature | - | 45 °C |
| Min Operating Temperature | - | -10 °C |
| Manufacturer Model Number | SM-R885F | - |
| Warranty | 2-year warranty | 2-year warranty |
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