Use with a PD charger; compatible with Apple Watch models 1–7 It takes roughly two and a half hours to fill the IP Watch S7, which automatically matches the IP smart watch series. Safer charging with numerous safeguards, including FOD, over-current, over-voltage, and over-temperature protections Accurate alignment, 3200GS magnet attraction, and increased charging efficiency Longer service life, premium tinned copper wire, zinc alloy shell + TPE wire