Note: This article has been consolidated with our broader HRV tracker comparison. Please see The Best HRV Tracker in 2026: Whoop vs Oura vs Garmin (Tested Side-by-Side) for the full comparison.
In short, after six months testing all three simultaneously:
- Whoop wins on HRV accuracy and recovery-coach software
- Oura wins on daily-wear comfort and sleep architecture
- Garmin wins if you're already in their fitness ecosystem
Read the full comparison here.