Xiaomi Watch S4 Rainbow – 1.43 Inch AMOLED
2200 Nits, 15 Day Battery, 5ATM Waterproof, Heart Rate & SPO₂ Sensor, Bluetooth 5.3, Aluminium Case
Xiaomi Watch S4 | Rainbow
The Xiaomi Watch S4 combines a sophisticated design with the latest technology and offers extensive functions for health, sports and communication. With its high-quality aluminum case, a brilliant display and the smooth integration of Xiaomi HyperOS, it is an indispensable companion for every moment.
Exquisite design with high-quality workmanship
The aluminum alloy frame and PVD coating give the watch a luxurious feel and a sophisticated appearance. The multi-level details with high-gloss and brushed finish ensure a timeless aesthetic. The precise corner processing and the two-tone dial make the watch look slimmer and more modern.
Quick Change Bezel 2.0
The innovative changeable bezel offers improved structure, materials and functions. Depending on the bezel, exclusive watch faces are activated that customize the appearance and functionality of the watch.
Intuitive operation with rotating crown
The rotating crown allows quick access to widgets and, in combination with HyperOS 2.0, ensures a smooth and efficient user experience.
Brilliant display and clear communication
With a peak brightness of 2200 nits, the watch delivers crisp and clear images even in direct sunlight. Thanks to the improved dual-microphone noise reduction, the Xiaomi Watch S4 offers clear Bluetooth calls for interference-free communication.
Advanced health monitoring
The precise heart rate measurement is based on a self-developed algorithm that significantly improves accuracy. The micro health examination has been further developed and enables comprehensive monitoring of important health parameters. New functions such as the detection of sleep rhythm disorders and breathing exercises promote well-being and support a healthy lifestyle.
Professional sports modes
The watch offers advanced training functions, including running posture detection and fall detection in ski mode, which are specially designed for active athletes.
The Xiaomi Watch S4 combines modern design, smart technology and first-class functions for everyday life and sports. With its elegant appearance, advanced health and sports functions and seamless integration into the Xiaomi HyperOS world, it is the perfect choice for anyone who wants to combine style and functionality in one watch.
Vibrant, high-resolution display
The top-notch 1.43″ AMOLED display will give you a beautiful and detailed image in any weather thanks to a maximum brightness of up to 2200 nits and HBM brightness of 1500 nits. They also feature a smooth 60Hz refresh rate and moisture-resistant touch control. A new algorithm prevents accidental touches due to moisture and water droplets. *The display refresh rate may vary depending on the interface. HBM is the maximum brightness of the entire screen. Maximum brightness is the highest brightness achieved by lighting up 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 provides over 2 weeks of use, so when planning shorter trips, you don’t have to worry about packing your charger.
Timeless design with rotating crown
Xiaomi Watch S4 is inspired by traditional watches and their craftsmanship. It will charm you with its exquisite workmanship and high-gloss aluminum alloy frame with a texture reminiscent of stainless steel. The improved rotating crown brings a new interactive experience. Rotate to quickly access widgets and message previews for more efficient and convenient text reading.
More than 200 watch faces
They also feature exclusive always-on watch faces and a variety of creative, modern and traditional watch faces for a truly unique look that will highlight your personal style. They also feature dynamic watch faces with cute characters to add a bit of charm and fun to your life. *Some watch faces are exclusive to the respective strap and bezel sets and are not available for download from the watch face store.
Health and fitness at a glance
It monitors heart rate, stress, blood oxygen and sleep. It generates a microphysical fitness record in approximately 60 seconds. The watch also features new breathing exercises, including relaxation, focus, nap 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 to 98%. There are also all-day blood saturation monitoring, all-day stress monitoring, and professional sleep monitoring. *Data comes from Xiaomi’s internal laboratories. The average data accuracy is up to 98% in situations such as sitting, reading in the office, running on a treadmill and running outdoors, walking, and cycling. In real-world use, the accuracy may vary due to individual differences, habits, and environmental factors.
More than 150 sports modes
Thanks to the integration of more than 150 sports modes, the watch is suitable for all types 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 be delighted by the professional skiing mode, which records the distance traveled and average speed of each run and a variety of other data in the Mi Fitness app. In addition, it now supports fall detection, where the system automatically calls your emergency contact if the watch does not detect any movement within 60 seconds . *Fall detection during skiing and emergency call must be enabled and set in the safety settings of any skiing mode. The emergency call function requires connection to the Mi Fitness app and contact information must be set in advance.
Information about your health always at your fingertips
Thanks to Xiaomi’s independently developed algorithm and Mi Fitness app, Xiaomi Watch S4 can monitor your health with greater accuracy. The watch now also supports Health Connect and popular fitness apps such as 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. To make contactless payments with the watch, simply hold the device near a 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 listed 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: 466×466 | 326 PPI
Maximum brightness: 1500 nits (HBM), 2200 nits (MAX)
Water resistance level: 5ATM
Speaker: Yes
Microphone: 2 microphones
NFC: Yes
Wireless connection: 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 bezel), Magnetic charging cable, User manual
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