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Vibrant high-resolution display
The high-end 1.43" AMOLED display gives you a beautiful and detailed picture in any weather thanks to a maximum brightness of up to 2200 nits and an HBM brightness of 1500 nits. They also feature a smooth 60Hz refresh rate and moisture-resistant touch controls. A new algorithm prevents accidental touches due to moisture and water drops.*Display refresh rate may vary depending on the interface. HBM is the maximum brightness of the whole screen. Maximum brightness is the highest brightness achieved by lighting only a certain part of the screen.
Up to 15 days of battery life
A reliable companion requires reliable battery life. Up to 15 days on a single charge ensures more than 2 weeks of use, so you don't have to think about whose charger you've packed when planning shorter trips.
Timeless design with swivel crown
Xiaomi Watch S4 is inspired by traditional watches and their craftsmanship. It will enchant you with its exquisite craftsmanship and high-gloss aluminum alloy bezel with a texture reminiscent of stainless steel. The improved rotating crown brings a new interactive experience. By rotating, you get quick access to widgets and message previews for a more efficient and practical text reading experience.
More than 200 dials
They also feature exclusive always-on dials and a range of creative, modern and traditional dials for a truly unique look that will enhance your distinctive style. They also have dynamic dials with cute characters to bring a little charm and fun into your life.*Some dials are exclusive to their respective strap sets and lunettes and are not available for download from the dial store.
Health and fitness at a glance
It monitors heart rate, stress, blood oxygen and sleep. They generate a microphysical fitness record in about 60 seconds. The watch also features new breathing exercises, including relaxation, concentration, napping and restful sleep.
High precision sensor module for 24/7 health monitoring
The combination of a high-precision heart rate sensor and our proprietary heart rate monitoring algorithm, increases the accuracy of heart rate measurement up to 98%. There is also all-day blood saturation monitoring, all-day stress monitoring and expert sleep monitoring.*The data comes from Xiaomi's internal laboratories. Average data accuracy is up to 98% in situations such as sitting, reading in the office, running on the treadmill and running outdoors, walking and cycling. In real-world use, accuracy may vary due to individual differences, habits and environmental factors.
More than 150 sports modes
With the integration of more than 150 sports modes, the watch is suitable for all kinds of sports activities, whether indoor or outdoor.
Dual-frequency L1+L5 positioning (GNSS)
Independent dual-frequency GNSS sensor offers precise positioning via five major satellite systems, for fast and accurate recording of outdoor activities
Professional skiing mode
Winter skiing and snowboarding enthusiasts will love the professional ski mode, which records the distance covered and average speed of each run, plus a wealth of other data in the Mi Fitness app. In addition, it now supports fall detection, where the system will automatically call your emergency contact if the watch doesn't detect any movement within 60 seconds. *Fall detection while skiing and emergency call must be enabled and set in the safety settings of any skiing mode. The emergency call feature requires a connection to the Mi Fitness app and contact information must be set up in advance.
Information about your health always at your fingertips
Thanks to Xiaomi's independently developed algorithm and the Mi Fitness app, Xiaomi Watch S4 can monitor your health with greater accuracy. The watch now also supports connectivity to Health Connect and popular fitness apps like Strava and Suunto, bringing you even more flexibility and convenience.
Contactless NFC payments
Xiaomi Watch S4 is also equipped with an NFC chip for convenient contactless payments. For contactless payment with the watch, just attach the device to the payment terminal. The watch now supports Mastercard® and Visa® payment cards;
Technical Parameters:
Dimensions: 47.3 x 47.3 x 12.0mm
Weight: 44.5g (weight is without strap in the package)
Frame material: Aluminum alloy
Sensors: heart rate and SpO2 sensor, accelerometer, gyroscope, ambient light sensor, electronic compass, barometer, hall sensor
Satellite positioning (GNSS): GPS / Galileo / Glonass / BeiDou / QZSS
Battery life: 15 hours of normal use
Battery capacity: 486mAh
Display: 1.43" AMOLED display / 60Hz refresh rate
Resolution: 466x466 | 326 PPI
Maximum brightness: 1500 nits (HBM), 2200 nits (MAX)
Degree of water resistance: 5ATM
Speaker: yes
Microphone: 2 microphones
NFC: Yes
Wireless: Bluetooth 5.3
Operating system: Xiaomi HyperOS 2
Compatibility: Android 8.0, or iOS 14.0 and later
Package contents: Xiaomi Watch S4 (including strap and lunette), Magnetic charging cable, User manual
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