Samsung Galaxy Watch and older Galaxy phones used a proprietary magnetic pogo-pin charging connector before transitioning to USB-C. The 2-pin or 4-pin magnetic connector snaps onto the watch cradle or phone back.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | VCC | Charging voltage | PWR |
| 2 | GND | Ground | GND |
| 3 | DATA | Optional data line | BUS |
| 4 | ID | Charger identification | I/O |
Samsung Galaxy Watch and older Galaxy phones used a proprietary magnetic pogo-pin charging connector before transitioning to USB-C. The 2-pin or 4-pin magnetic connector snaps onto the watch cradle or phone back.