Introducing the SENBONO HK21 Smart watch, the latest addition to our collection. This brand new watch boasts a large AMOLED display and is Bluetooth enabled, making it the perfect accessory for any Android device. The watch comes in a sleek black case with a matching black band, adding a touch of sophistication to your style. Designed and manufactured in China, this watch is sure to impress with its advanced features and stylish design. So whether you're looking for a new addition to your smart watch collection or just want to stay connected on the go, the SENBONO HK21 Smart watch is the perfect choice.

Product features: - 2.01inch HD AMOLED Screen - Multipleexercise options - Wireless Answer/ Make Call - Multiple Sports Modes

product properties: Compatible System: Android4.4(inclusive) and above, iPhone9.0 (inclusive) and above Type: AMOLED screensize: 2.01inch Battery capacity: 260mAh Charging time: about 2H Life time:about 5-7 days of use, 30 days of standby Included in the package: watch,charging cable, watch manual.

1. Charging and Battery Care: - Use the provided charger andcable to charge your smartwatch. - Avoid overcharging the battery as it canreduce its lifespan. - Disconnect the charger once the battery is fullycharged. - Avoid exposing the smartwatch to extreme temperatures, as it canaffect battery performance.

2. Maintenance and Cleaning: - Regularly clean thesmartwatch with a soft, lint-free cloth. - Avoid using harsh chemicals orsolvents that can damage the watch's surface. - If the strap is removable,clean it separately according to the manufacturer's instructions.

3. Software and App Updates: - Keep your smartwatch'ssoftware and companion apps up to date. - Firmware updates often include bugfixes and new features. - Check for updates regularly through themanufacturer's official website or app store.