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Watch Specifications

The U19 and U16 share the same hardware platform and the same cuff module; they differ only in feature set. Below is the full specification.

2.01-inch TouchscreenBluetooth 5.0405mAhIP68
SPECIFICATIONS

General Specs

Data comes from the product registration file and factory configuration; the manual in the box prevails.

ModelU19 / U16
Screen Size2.01-inch HD Display
Screen TypeTFT Multi-touch
BluetoothBluetooth 5.0 Low Energy
Battery405mAh
Charging TimeAbout 30 minutes (0→100%)
Standby TimeAbout 25–30 days
Water ResistanceIP68 Dust & Water Resistance
Blood PressureWrist cuff oscillometry · true pressurization
SensorsBP / brain fog / sleep / SpO₂ & heart rate / stroke risk warning
Companion AppCHAO XIAO MAI WeChat mini program
Registration No.Yue Xie Zhu Zhun 20262070686
CERTIFICATION

Registration & Compliance

Class II Medical Device Registration Certificate Yue Xie Zhu Zhun 20262070686
Product Positioning Health monitoring and risk indication device; does not constitute a medical diagnosis
Data & Privacy Health data is used only to generate your own reports and nothing else. The Terms of Use and Privacy Policy are signed and logged inside the mini program.
Manufacturer Guangdong CHAO XIAO MAI Digital Technology Co., Ltd.
Compliance notice: Outputs are health status grading and risk trend references and are not a substitute for hospital examination or a physician's judgment. SOS is an assistive calling feature — in an emergency, dial 120 immediately. Product structure and functions are subject to the actual device and registration documents.

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Both models at one price, ¥3380/unit. WeChat QR payment accepted; shipped via SF Express within 48 hours of payment.

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