Fitbit Ionic Smartwatch

For the fitness-focused smartwatch lover, the Fitbit Ionic comes with “dynamic personal coaching” and storage space for more than 300 songs. The powerful battery provides more than four days on each charge. The Ionic has built-in GPS capability and heart-rate monitoring that includes a special SpO2 sensor to track oxygen levels in the blood, as well as your sleeping patterns — something that other watches use a third-party app to monitor. The Ionic comes in a trio of sleek color designs, as well.