Magnetic Charger For Sense 2 Versa 4 Replacement USB Charger Charging Cable Dock Cradle For Fitbit Versa 4/Versa 3/Sense Smartwatch Fitbit Charger Compatibility: USB-C Charger Cable Compatible with Fitbit Sense/ Sense 2 / Versa 3 / Versa 4 Keep your Fitbit charged up and ready to go with this USB charging cable for your Fitbit activity trackers. It boasts a slim design that is easy to carry along to the gym, on commutes, or while travelling If you forget to unplug the charger after charging, it will keep the safety The old usb charger cable doesn't support quick charge, even when I plug it on a 35W power adapter, Sense tells me it was slow charging, it's not normal Compatibility Compatible with Fitbit Sense Compatible with Fitbit Sense 2 Compatible with Fitbit Versa 3 Compatible with Fitbit Versa 4 Notes 1., This charger is only designed fo Sense/Sense 2/Versa 3/Versa 4 smartwatch, please don't use it to charge any other model 2., We recommend using a computer, laptop, or portable power bank for charging as the current is more stable 3., If your watch completely ran out of power, it may need to be charged for about a few minutes to wake up and show charging status., 4., Make sure the watch is pressed to the bottom of the charger for sufficient connection. For Fitbit Versa 4 Sense 2 Versa 3 Charger Cable USB-C Charger: Easy to charge, can be plugged directly into any USB-C charging port, works like the original, a full charge takes about 2., 5 hours