Chest Strap HR Monitor — ASO

By Wojciech Zieba on AppTrack Ninja.

Zone 2 Training - No Watch

Train in your heart rate zones using your Bluetooth chest strap — no smartwatch required. Strap Zone connects directly to your heart rate monitor and shows real-time zone data on your iPhone. Use it for zone 2 sessions, HIIT, intervals, or other heart-rate-based training. WHY CHEST STRAP + PHONE? Chest straps provide reliable heart-rate data during workouts and are often more responsive than wrist-based monitors. Most zone training apps require an Apple Watch. Strap Zone doesn't. Just your phone and your strap. FEATURES Real-Time HR Zones (Z1–Z5) See your current zone with bold, color-coded d…

Categories: Sports, Health & Fitness

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