Track your activities without shouting about it to the world with the Gooseberry Smart Buckle Activity Tracker. Sleek and subtle, this activity tracker actually attaches to your existing watch band. In fact, it’s compatible with over 500 different watch bands including leather, silicone, and fabric straps. The Smart Buckle may be small but it’s mighty. It can easily track your steps, calories, pace, distance, and even your sleep. With an app for iOS and Android, all of your data is easily accessible when you want it. Because it works with your existing watch, you don’t have to waste money on an addition. Plus, it means you can switch up your style whenever you want. Made of stainless steel, it looks stunning with any strap.