Part watch, part wearable fitness tracker, this sleek device will track your steps, heartrate, sleep patterns, and much, much more. It's smart enough that tech-lovers will be thrilled, but approachable enough for folks who have never used a fitness tracker will love it too. It's sweat, rain, and splash proof, and comes in a modern unisex design. Since it looks like a watch, it's more wearable and fashionable than other fitbit's on the market. $300, available at thebay.com and fitbit.com.