Apple's Watch Series 3 has a cellular connection that works well for phone calls, email, Siri and messages. Music syncs more easily than its predecessors and it now has a barometer with the GPS. This is one of the best smartwatches you can buy.
Fitbit's Versa is the cheaper answer to the Apple Watch. This compact, lightweight smartwatch and fitness tracker is water-resistant to 50 meters and works with iOS and Android. Just putting this out there, its multiday battery life beats the Apple Watch's.
Garmin's Vivosmart 3 is slim and comfortable to wear, with a built-in heart-rate monitor and full waterproofing. It's loaded with extra features, including stress-level measurements, VO2 Max readings and a rep counter. Plus, it can show notifications from your phone.
The Fitbit Ionic's outstanding four-day battery life is better than most other smartwatches. It has features galore, including waterproofing, GPS and on-wrist mobile payments, plus it's compatible with iOS and Android.
Garmin's Vivomove HR gives you a full set of fitness features on a regular-looking analog watch. That includes heart rate, step count, sleep tracking and smart functions like notifications. With 50-meter water resistance and a weeklong-plus battery life, this is a great buy.