The charging cable is only compatible with Blackview R50 Smartwatch. The original charging cable allows for fast charging. Long lifespan of the charging cable and excellent compatibility.These charging cables charge quickly and have excellent battery life. It takes 2.5 hours for a full charge. Note: This replacement charging cable is only suitable for Blackview R50 Smartwatch and is not recommended for use with other brands or models. If you have any questions, please contact the seller's customer service in time. We will resolve your questions within 24 hours.