Should you have a large or small size wrist, chances are you'll need to choose an additional-very long or excess shorter strap. In any event, having a couple of minutes to identify the proper duration could help you save the disappointment of buying the wrong size. Wireless support system needed https://allhealthmarket.com/product/aeahmarket/appleband/silicone-strap-for-apple-watch/strap-for-apple-watch-38-40-41-42-44-45-49mm-band-replacement-silicone-wristband-for-iwatch-8-7-6-5-4-3-2-1-se-ultra/