Great service. I was fully supportes theoughout the selection and order process. Products works as expected. We have tried several models from other manufacturers. Non was either precise or compatible with out local carrier. This one works OK. not perfect because of the app that takes time to process the location. Battery lifetime can easily withstand more than an Apple watch which by the way I have returned it as it is not 4G compatible, nor is Samsung galaxy watch series. We are more than happy with the purchase. plan to order a smaller batch in the future