Design:
| screen size |
1.32" |
| Display type |
OLED/AMOLED |
| water resistance |
Waterproof |
| ATM rating |
5 ATM |
| Always-On Display |
✓ |
| pixel density |
320 ppi |
| resolution |
466 x 466 px |
| Watch band is replaceable |
✓ |
| has branded damage-resistant glass |
✕ |
| thickness |
9.5 mm |
| weight |
32 g |
| height |
41.2 mm |
| width |
41.2 mm |
| Has a display |
✓ |
| has a touch screen |
✓ |
| Has sapphire glass display |
✓ |
| volume |
16.12568 cm³ |
| is designed for kids |
✕ |
The design of the Xiaomi Watch S4 41mm is crafted with attention to both aesthetics and functionality. The watch features a 1.32″ OLED/AMOLED display with a high resolution of 466 x 466 px and a pixel density of 320 ppi, ensuring vibrant and clear visuals. It is waterproof with a 5 ATM rating, making it suitable for swimming and outdoor activities. Additionally, the watch comes with a replaceable band, a sleek 9.5 mm thickness, and weighs just 32 g, offering both comfort and practicality. The display is always on for continuous use, and the watch also includes a sapphire glass display for durability against scratches.
Sensors:
| Monitors blood oxygenation levels |
✓ |
| Has a heart rate monitor |
✓ |
| has GPS |
✓ |
| has an accelerometer |
✓ |
| Has a temperature sensor |
✓ |
| has a compass |
✓ |
| Has a barometer |
✓ |
| has a gyroscope |
✓ |
| Has a cadence sensor |
✕ |
| Monitors perspiration |
✕ |
The Xiaomi Watch S4 41mm is equipped with a comprehensive set of sensors to track various health and fitness metrics. It includes a pulse oximeter to monitor blood oxygen levels, a heart rate monitor for continuous heart rate tracking, and a GPS for accurate location tracking during outdoor activities. The watch also features an accelerometer, body temperature sensor, compass, barometer, and gyroscope, enabling advanced activity tracking and environmental awareness. However, it does not support a cadence sensor or perspiration monitoring.
Activity tracking:
| Tracks your sleep |
✓ |
| Tracks distance |
✓ |
| Tracks steps taken |
✓ |
| Measures pace |
✓ |
| Provides sleep reports |
✓ |
| Detects activities automatically |
✓ |
| Has a route tracker |
✓ |
| Tracks elevation |
✓ |
| Has exercise tagging |
✓ |
| Has a stroke counter for swimming |
✓ |
| Tracks calorie intake |
✓ |
| Designed for diving |
✕ |
The Xiaomi Watch S4 41mm offers comprehensive activity tracking features to help monitor various aspects of your fitness journey. It tracks your sleep, distance, and steps taken, while also measuring your pace during workouts. The watch provides detailed sleep reports and automatically detects activities, making it easier to track your daily movements. Other features include a route tracker, elevation tracking, and exercise tagging for more tailored activity logs. Additionally, the watch includes a swim stroke counter and can track calorie intake through its food tracking capabilities. However, it is not designed for diving.
Connectivity:
| has a cellular module |
✓ |
| Is compatible with iOS |
✓ |
| Is compatible with Android |
✓ |
| Bluetooth version |
5.4 |
| supports Wi-Fi |
✕ |
| supports ANT+ |
✕ |
| SIM cards |
1 eSIM |
| has NFC |
✓ |
| supports Galileo |
✓ |
The Xiaomi Watch S4 41mm offers versatile connectivity options, including support for 1 eSIM for cellular connectivity. It is compatible with both iOS and Android devices, ensuring broad compatibility with different smartphones. The watch supports Bluetooth 5.4 for seamless pairing with devices and includes NFC for contactless transactions. It also features Galileo support for enhanced GPS accuracy, though it does not support Wi-Fi or ANT+ connectivity.
Battery:
| battery life |
8 days |
| battery power |
320 mAh |
| has wireless charging |
✓ |
| has a rechargeable battery |
✓ |
| Has a solar power battery |
✕ |
| has a removable battery |
✕ |
The Xiaomi Watch S4 41mm is equipped with a 320 mAh rechargeable battery, providing up to 8 days of usage on a single charge. It also supports wireless charging, offering convenience without the need for cables. The watch does not feature a solar power battery or a removable battery, ensuring ease of use with a streamlined design.
Features:
| release date |
June 2025 |
| has HRV tracking |
✓ |
| measures VO2 max |
✓ |
| measures resting heart rate |
✓ |
| has fast/slow heart rate notifications |
✓ |
| shows readiness level |
✓ |
| Can be used to answer calls |
✓ |
| Locates your phone |
✓ |
| Has call control |
✓ |
| Has notifications |
✓ |
| has irregular heart rate warnings |
✕ |
| Has ECG technology |
✕ |
| Has silent alarm |
✓ |
| Has vibrating alerts |
✓ |
| has fall detection |
✓ |
| Has a stopwatch |
✓ |
| Has smart alarm |
✕ |
| has voice commands |
✓ |
| internal storage |
32GB |
| Has a built-in camera remote control function |
✓ |
| Acquires GPS faster |
✓ |
| warranty period |
1 years |
| number of microphones |
1 |
| has a front camera |
✕ |
The Xiaomi Watch S4 41mm comes with a wide range of features designed to support your health and daily needs. It includes HRV tracking, VO2 max measurement, and the ability to monitor your resting heart rate. The watch also offers fast/slow heart rate notifications, fall detection, and wrist notifications to keep you informed. Additional features include silent alarms, vibrating alerts, and a built-in camera remote control function. It also supports voice commands and provides a 32GB internal storage for data and app usage.
App & Software:
| Provides activity reports |
✓ |
| Has inactivity alerts |
✓ |
| Counts how many calories you've burned |
✓ |
| Has goal setting |
✓ |
| Has achievements |
✓ |
| Free app |
✓ |
| Has exercise diary |
✓ |
| Ad-free |
✓ |
| Has coaching |
✕ |
| Has temperature tracking |
✓ |
| Has period notifications |
✓ |
| Supports routes |
✕ |
| Syncs with existing calendars |
✓ |
| Has music playback |
✓ |
| Exports to email |
✕ |
| Includes maps |
✓ |
| Doesn’t require account |
✕ |
| Predicts ovulation |
✓ |
| Predicts start date |
✓ |
| Supports widgets |
✓ |
| Can be personalised |
✓ |
| Has barcode scanner on app |
✕ |
| Tracks water intake |
✓ |
| Has weight tracking |
✓ |
The Xiaomi Watch S4 41mm offers a comprehensive suite of app features to enhance your fitness and health tracking. It provides activity reports, calorie counting, and goal setting, helping users stay motivated and on track with their fitness journey. The watch also includes an exercise diary, temperature tracking, period notifications, and even ovulation predictions. You can personalize the app, track your water intake, and sync it with your existing calendar. Additionally, it supports workout music playback, maps, and widgets, all within an ad-free and free-to-use app experience.
Miscellaneous:
| has a battery level indicator |
✓ |
| Has passcode |
✓ |
| Is compatible with Windows |
✕ |
| has an external memory slot |
✕ |
| Is compatible with Mac OS X |
✕ |
| has a socket for a 3.5 mm audio jack |
✕ |
The Xiaomi Watch S4 41mm includes practical features such as a battery level indicator and a passcode for added security. It does not support external memory, compatibility with Windows or Mac OS X, nor does it have a 3.5 mm headset jack. These features ensure a streamlined, secure experience without extra hardware requirements.