Meridian
Body composition, HRV, sleep science, and what the data on your wrist actually means.
September 20, 2026
Most fitness trackers either charge monthly forever or hide their best metrics behind a paywall. Here is how to find one that does not, and why the subscription model varies so widely.
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September 17, 2026
HRV and sleep-stage data tell you whether yesterday's training actually built fitness or just burned you out. Here is what to look for in a tracker, and why Meridian is a compelling alternative to WHOOP and Garmin at a lower total cost.
Read articleSeptember 17, 2026
Meridian tracks body fat, muscle mass, and visceral fat from your wrist, starting at $229. Oura Ring starts at $349 and does not measure body composition at all. Here is the direct comparison.
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