The Xiaomi Watch S4 41mm combines a sleek stainless-steel design with a vibrant 1.32-inch AMOLED display and advanced health tracking. Running on Xiaomi HyperOS 3, it offers comprehensive wellness monitoring, built-in dual-frequency GNSS, Bluetooth 5.4, NFC payments, over 150 sports modes, and up to 8 days of battery life, making it the perfect smartwatch for fitness and everyday wear.
Key Features:
• 1.32-inch AMOLED display with 466 × 466 resolution.
• Up to 1500 nits brightness for excellent outdoor visibility.
• Premium stainless steel case with slim 41mm design.
• Xiaomi HyperOS 3 for a smooth smartwatch experience.
• Supports over 150 sports and workout modes.
• Dual-frequency L1 + L5 GNSS with five satellite positioning systems.
• Advanced heart rate, SpO₂, sleep, stress, and skin temperature monitoring.
• Enhanced female cycle prediction and sleep improvement plan.
• Bluetooth heart rate broadcasting for compatible fitness equipment.
• Built-in Emergency SOS, fall detection (skiing), emergency siren, and live location sharing.
• Sports Vlog feature for remote phone video recording during workouts.
• NFC support for contactless payments.
• 5ATM water resistance for swimming and daily use.
• Up to 8 days of battery life under light usage.
Technical Specifications:
• Brand: Xiaomi
• Product Name: Watch S4 41mm
• Models: MI-WATCH-S4-FBSTRAP-BLK (Black), MI-WATCH-S4-FBSTRAP-MGRN (Mint Green)
• Display: 1.32-inch AMOLED
• Resolution: 466 × 466 Pixels
• Brightness: Up to 1500 Nits
• Operating System: Xiaomi HyperOS 3
• Bluetooth: Version 5.4
• GNSS: GPS, Galileo, GLONASS, BeiDou, QZSS
• NFC: Yes
• Water Resistance: 5ATM
• Battery Capacity: 320mAh
• Battery Life: Up to 8 Days (Light Usage), Up to 4 Days (Normal Usage), Up to 3 Days (Heavy Usage)
• Charging: 2-Pin Magnetic Charging Dock
• Sensors: Heart Rate & SpO₂ Sensor, Accelerometer, Gyroscope, Ambient Light Sensor, Electronic Compass, Barometer, Temperature Sensor
• Sports Modes: 150+
• Strap Material: Fluororubber
• Case Material: Stainless Steel
• Dimensions: 41.2 × 41.2 × 9.5mm
• Weight: 32g