Fitbit Charge 5 Advanced Health & Fitness Tracker with Built-in GPS, Stress Management Tools, Sleep Tracking, 24/7 Heart Rate and More, Black/Graphite, One Size (S &L Bands Included) : Electronics
Review: 's Halo View health tracker is a good second release, with some awkward quirks – GeekWire
Halo Review
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Halo View review: $80 is a great price, but you get what you pay for - CNET
Halo View review: Still a work in progress
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Halo View review: Costly conundrum - Android Authority
Halo review: This fitness tracker knows you inside and out