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The Garmin Vivosmart 4 is an attractive, easy to read fitness tracker that measures your fitness activity as well as your Body Battery energy: a proprietary metric offered by Garmin that measures your body’s energy reserve to calculate how much energy you have left based on your heart rate variability (HRV), stress levels, sleep, and activity.
- Overall health tracking: Monitors your heart rate to evaluate sleep, stress, and more
- Attractive: Band is slim and comes in a variety of colors
- Battery life: 7 days
