Strap on this black Samsung Galaxy Watch4 and you'll be all set for whatever the day throws at you. It has Google Pay, so you can leave your wallet at home - just hold your watch near a contactless reader to make purchases. It's that easy. The 30mm touchscreen looks great, and gives you a crystal-clear view of apps, texts and more. Want to get some extra steps in? It can help you along the way with a built-in fitness tracker, covering loads of different exercises, as well as showing you how many calories you've burnt. Plus, if you want to cool off after the gym with a quick dip, it's water resistant, so get some lengths in.