I just cleaned both of them because the Apple Watch has had a sticky crown since I took it snorkeling, and the Garmin just needs regular cleaning for the charger to not fail horribly (one of the main cons of Garmin). Out of habit put the apple on its charger afterwards. I just cleaned both of them because the Apple Watch has had a sticky crown since I took it snorkeling, and the Garmin just needs regular cleaning for the charger to not fail horribly (one of the main cons of Garmin). Out of habit put the apple on its charger afterwards.