Just purchased the Apple Watch Sport for my wife and it was dead on arrival. Would not power up even after charging all night. Tried holding both buttons in for 10 seconds or so and still would not power up. Took it back and got a new one. This one powered up but after selecting the language, it gave a message saying battery was low and it need to be charged in order to continue. We charged it for 12 hours and still got the same message. Tried holding both buttons for 10 seconds or so and after it did a reset, got the same message saying it needed to be charged. Enough is enough. Took it back for a full refund. My wife is an ardent Apple fan and this was a birthday gift for her, but even my wife said "no more". Come on Apple, haven't you heard of quality control!