![Introducing the Garmin® vívosmart 4: A sleek activity tracker with Pulse Ox and energy monitoring | Business Wire Introducing the Garmin® vívosmart 4: A sleek activity tracker with Pulse Ox and energy monitoring | Business Wire](https://mms.businesswire.com/media/20180830005127/en/675558/5/MCJT_12206_vivosmart_4_series_image.jpg)
Introducing the Garmin® vívosmart 4: A sleek activity tracker with Pulse Ox and energy monitoring | Business Wire
![Amazon.com : Garmin vivosmart 5 Fitness Tracker (Black, L) Gift Box Bundle with PlayBetter Car/Wall Adapters & Protective Hard Case - Heart Rate Monitor & Sleep Tracker - Phone GPS, Easy to Amazon.com : Garmin vivosmart 5 Fitness Tracker (Black, L) Gift Box Bundle with PlayBetter Car/Wall Adapters & Protective Hard Case - Heart Rate Monitor & Sleep Tracker - Phone GPS, Easy to](https://m.media-amazon.com/images/I/61fTSGJ6NpL._AC_SL1350_.jpg)
Amazon.com : Garmin vivosmart 5 Fitness Tracker (Black, L) Gift Box Bundle with PlayBetter Car/Wall Adapters & Protective Hard Case - Heart Rate Monitor & Sleep Tracker - Phone GPS, Easy to
![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-full.png)