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Garmin Vivosmart 4 review: Garmin's new ultraslim Vivosmart 4 gets more features, easier to use - CNET
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Garmin vivosmart 4 Activity Tracker with Heart Rate Monitor - Light Grey / Silver (S/M) - 010-01995-02
![The validity of activity trackers is affected by walking speed: the criterion validity of Garmin Vivosmart® HR and StepWatch™ 3 for measuring steps at various walking speeds under controlled conditions [PeerJ] The validity of activity trackers is affected by walking speed: the criterion validity of Garmin Vivosmart® HR and StepWatch™ 3 for measuring steps at various walking speeds under controlled conditions [PeerJ]](https://dfzljdn9uc3pi.cloudfront.net/2020/9381/1/fig-1-2x.jpg)
The validity of activity trackers is affected by walking speed: the criterion validity of Garmin Vivosmart® HR and StepWatch™ 3 for measuring steps at various walking speeds under controlled conditions [PeerJ]
![Garmin Vivosmart 4 review: Garmin's new ultraslim Vivosmart 4 gets more features, easier to use - CNET Garmin Vivosmart 4 review: Garmin's new ultraslim Vivosmart 4 gets more features, easier to use - CNET](https://www.cnet.com/a/img/resize/0031d5fc338b95d29e597dbc64825de64d81b698/hub/2018/08/27/d6412813-1fcc-4462-98eb-7b6caf2bdade/vivosmart-4-series-image.jpg?auto=webp&fit=crop&height=1080&width=1920)