A:AnswerYes it will. I have an Otter Box on my Note 20 Ultra and it works just fine. You do need to be careful how you place the phone on the pad. It works best by placing it right near the end of the pad. The phone will react and begin charging.
A:AnswerYes. It turns off automatically when the device is fully charged. Because it turns itself off when charging is complete there is no fire hazard. The phone will be warm to the touch but not hot so there is no burn hazard either.
A:AnswerThis charger supports all wireless charging (which i believe started on the iPhone 8 and thereafter). There is one USB port on the bottom of the device.
A:AnswerI have not tried to charge my watch from this device, but it does support the wireless charging of two phones (I own a galaxy 10 and an iPhone 11.
A:AnswerYes. iPads cannot be charged wireless because they don't have wireless capabilities. And Apple has not added wireless charging to the iPad line yet.