Compatible: with YAMAY SW021 Willful SW023 SW025 Letsfit ID205L Letscom ID205G ID205S ID206 ID205U ID216. Note: Before purchasing, please measure whether the distance between the center points of the two magnet charging ports of your smart watch is equal to 2.84 mm or 0.11 inch. If it is not 2.84 mm, please do not purchase this product. USB ports are only applicable to charging ports, power banks, and Laptops. Magnetic Charging: Magnetic charging ensures a tight connection and helps align the smart watch with the charger to ensure reliable charging without looseness, and improves the efficiency and speed of the charger. Durable and Safe: High-quality ABS+PVC material has good durability. The charger is equipped with overvoltage and overcurrent protection. Copper core high-precision gold-plated contacts, plug and play, no need to wait. Make sure the pin is connected and cannot move around before use, it will stay in place and charge quickly and completely. Two-piece Pa