Had a calibration issue with My Apple Watch Sport first gen. Walked about three miles a day but only got half an hour of exercise, and altogether, too complicated for me and I forget to charge it every day. So I decided to sell it at last and looked everywhere. Igotoffer offered a little more than other site. So I went for the kill. FedEx delivered with delay, took 3 days for shipping from Chantilly, Virginia to New York, NY, but yes, you paid in time the exact amount. Thank you.