While I really do like wireless charging for watches (no exposed electrical contacts == easier waterproofing and no corrosion to worry about, and the battery ca

While I really do like wireless charging for watches (no exposed electrical contacts == easier waterproofing and no corrosion to worry about, and the battery capacities are so low that slow charging barely matters): 2 and 4 pin magnetic charging cables are extremely common in smart watches, it's what pebble used before, and it sounds like what they're using for these as well. "Standard pebble charger" is listed in the tech-specs, which likely means the 2-pin version.