✔Compatible with Samsung Galaxy Watch 4 Classic 42mm Charger. Compatible with Samsung Galaxy Watch 4 Classic 46mm Compatible with Samsung Galaxy Watch 3 (41mm SM-R850) Compatible with Samsung Galaxy Watch 4 40mm Compatible with Samsung Galaxy Watch 4 44mm Compatible with Samsung Galaxy Watch 3 (45mm SM-R840) Compatible with Samsung Galaxy Watch Active 40mm SM-R500 Compatible with Samsung Galaxy Watch Active 2 (40mm SM-R830) Compatible with Samsung Galaxy Watch Active 2 (44mm SM-R820) ✔Output Current:500mA ✔Input:5V ✔Output:5V Material:Plastic. ✔Connector Type:USB ✔Charging Cable Length:1M/3.3FT ✔Small DC Wave, High Efficiency, Fast Charging. ✔The charger cable has a built-in voltage regulator to protect your watch from damage caused by overcurrent when connected to a power source. ✔ The watch will not heat up while charging and the temperature is low. Use overpower and short circuit protection cable instead of traditional charging cable to keep you safe. ✔The compact and lightweight design is convenient to put in the bag and allows you to carry it anywhere. ✔ The charger cable provides the fastest possible charge to any USB power source in your PC, laptop or notebook. Package Content 1 * 3.3ft USB Charging Cable