What AI says about Zone 2: Heart Rate Training

apps.apple.com/app/zone-2-heart-rate-training/id6444690892

Zone 2 is a heart rate training app that tracks weekly workout minutes spent in the zone 2 heart rate range (60–70% of maximum heart rate) for endurance and fat-burning benefits. The Apple Watch companion app provides live zone tracking with haptic feedback, Siri announcements, and health metrics.

AI named Zone 2: Heart Rate Training in January 2026.