*Display refresh rate may vary across different interfaces. Please refer to the actual usage scenario.
*The HBM brightness is the maximum brightness when the entire screen lights up.
Specifications:
Built-in GNSS: Supported
Water resistance rating: 5ATM
*The 5ATM water resistance rating (equivalent to a depth of 50 meters) means it can be worn in swimming pools, while swimming near the shore, and during other shallow water activities. It is not suitable for wearing in hot showers, saunas, or while diving. Make sure to avoid direct impacts from swift currents during water sports. Water resistance is not permanent and may deteriorate over time.
Speaker: Supported
Microphone: 1 mic
NFC: Supported
*NFC availability may vary by region.
Bluetooth calling: Supported
*The watch must be kept connected to the smartphone's Bluetooth. Voice calls from third-party apps are not currently supported.
Wireless connectivity: Bluetooth® 5.4
Operating system: Xiaomi HyperOS 3
Compatibility: Supports smartphones with Android 8.0 and above, or iOS 14.0 and above.
Charging port: 2-Pin magnetic charging dock
Package Contents:
Xiaomi Watch S4 41mm / Magnetic charging dock / User manual (including warranty notice)
