Laytham Amoled Military Smart Watch GPS

Product DescriptionWhat's the APP of this GPS smart watch? Fetbeing. You can go to the app store on your phone, search for "Fetbeing" and install it. Android phones go to Google Play, iOS phones go to the APP Store. Or scan the QR code in the User manual. What's the size of the watch band? 22mm watch band. The bands are interchangeable. Can I check the watch without download the APP? Yes, you can. Slide the watch to the first page, finger claps 10 times, it will bring you to the inner page. But if you want to use all the functions, please download the APP. How to edit watch faces? You can select personal photos or scenic images from your phone's gallery as the background for your watch face. How to update Daylight Saving Time promptly? Connect your watch to the APP, wait 30 seconds to 1 minute, the APP will automatically complete the DST update, verify if the DST setting is accurate, if inaccurate, repeat the steps above.