Garmin already has a bunch of awesome fitness trackers on the markt. The vivoactive HR GPS Smart Watch is another smart tool that lets you monitor your heart rate from your wrist without a strap. It has up to 8 days of battery life. This fitness watch lets you monitor your progress against your aerobic activity goals.
The device works for golfing, swimming, cycling, running, and other activities. It has a sunlight-readable touchscreen display and shows smart notifications from your smartphone. Costs under $250 at this time.