Good sound, but too big tool to actually serve as watch, even for adults. The games are fast repetitive but it is the limiting factor for the screen size is at issue here.
Rechargeable about any micro USB charger or a computer with the supplied USB cable, seen since a plethora of choices chargers available to us including the car.
Although some functions are not tamable Smaller, I had no hesitation in proposing this toy my daughter 31 months Fun with occasionally happens and to take and view pictures / videos, or record and play voice memos. Avoid buying this watch to a child of 12, he will think it's a joke, by the way my daughter comes out with a smartphone if it's just to play.
Fun toy anyway.