Quality of recovery scores, readiness metrics, AI coaching, and actionable health recommendations. Includes Body Battery, Recovery Score, and similar features.

Accuracy of sleep stage detection, sleep score reliability, and quality of sleep improvement recommendations.

Days between charges under normal use. Considers always-on display impact and GPS usage drain.

Price-to-feature ratio including subscription costs. Considers total cost of ownership over 2 years.

Build quality, display readability, comfort for all-day wear and sleep, and aesthetic appeal.

Accuracy of step counting, heart rate monitoring, GPS tracking, and workout detection. Evaluates sensor quality and algorithm reliability.