This watch charger is compatible with all Series SE/7/6/5/4/3/2/1 watches, across various sizes. Its magnetic design allows for easy docking and shock absorption, ensuring a secure connection. Offering fast charging speeds, it powers up Series 1/2/3 watches in 2 hours and Series 4/5/6/7 watches in 3 hours. Constructed from high-quality materials, it undergoes reliable bending tests for durability. Its lightweight and compact design make it convenient to carry, whether in your pocket or bag.