Training insights
Winner: Whoop 5.0Whoop is built for this. Recovery Score (0-100) synthesizes HRV + resting HR + sleep quality into ONE number that tells you whether to go hard or take it easy today. Strain Score (0-21) measures daily cardiovascular load. Together they drive real training behavior.
Apple Watch tells you calories burned and heart-rate zones. That's descriptive. Whoop is prescriptive. If you're training for anything (race, competition, aesthetics) Whoop's insights are meaningfully better.

