User Manuals, Instructions and Guides for Dongguan Langchen Technology products.
Dongguan Langchen Technology H13 Smart watch User Guide
Learn how to use the H13 Smart Watch and its features with these user manual instructions. Discover how to wear and charge the Smart Wristband, connect it to your phone, and track your fitness activities. Find out more about the X6PLUS Smart Wristband from Dongguan Langchen Technology.