Our Rank: #4View More
The Garmin Vivosmart 4 is an attractive, easy-to-read fitness tracker. It measures your Body Battery energy to calculate how much energy you have left based on your heart rate variability (HRV), stress levels, sleep, and activity. Features include:
- 7 days of battery life
- Heart rate monitoring to evaluate stress, sleep, and more
- Slim band is available in a variety of colors