Jiangsu Saibo Yuhua Technology A13 1.09-Inch Full Touch Smartwatch User Guide
This user manual is for the A13 1.09-Inch Full Touch Smartwatch by Jiangsu Saibo Yuhua Technology, model number 2A2N5-A13. It includes instructions on how to use the message push interface, heart rate test, sports interface, temperature interface, and more. The manual also provides information on charging the device and maintaining test accuracy.