4x4 Treadmill vs Treadmill Pro

4×4 Treadmill is your personal interval training coach. Built around the scientifically proven Norwegian 4×4 method, it guides you through high-intensity treadmill workouts with real-time heart rate monitoring and live coaching. WHAT IS 4×4 TRAINING? Four intervals of 4 minutes at high intensity, separated by active recovery periods. This protocol is one of the most effective ways to improve cardiovascular fitness and VO₂max. FEATURES • Real-time heart rate monitoring via Bluetooth sensor or Apple Watch • Live coaching — tells you to pick up pace or slow down based on your heart rate zone • Execution Score (0–100) based on intensity, consistency, and recovery • Detailed post-workout analytics with heart rate charts and per-interval breakdown • VO₂max estimation after each session • Customizable warmup, interval, recovery, and cooldown durations • Treadmill speed and incline settings per stage • Full workout history with day, week, month, and year views • Supports English and Norwegian HOW IT WORKS 1. Connect your heart rate sensor and set your target zones 2. Start the guided workout, the app coaches you through warmup, four hard intervals with recovery, and cooldown 3. Review your Execution Score, heart rate chart, and per-interval breakdown Start training smarter today.

Treadmill Pro — smart Bluetooth controller for your treadmill. Connect your treadmill via Bluetooth Low Energy and take full control from your iPhone. No extra hardware needed — just open the app, connect, and start your workout. SUPPORTED PROTOCOLS: • FTMS (Fitness Machine Service) — universal standard for modern treadmills • WalkingPad — Xiaomi/KingSmith walking pads • Gymax — Gymax treadmill protocol KEY FEATURES: • Auto-discovery of nearby BLE treadmills • Real-time speed and incline control • Workout timer with distance, calories, and pace tracking • Apple Watch heart rate monitoring via HealthKit • Workout history — review your past sessions • Graceful stop — speed and incline reset to zero before shutdown • Multi-language support: English, Russian, Spanish, French, Chinese, Turkish APPLE WATCH INTEGRATION: Connect your Apple Watch to see real-time heart rate during and outside of workouts. Track average and max heart rate for every session. EASY TO USE: 1. Turn on your treadmill 2. Open Treadmill Pro 3. Tap "Connect" — your treadmill appears automatically 4. Start your workout and control everything from your phone Can't connect your treadmill? Use the built-in support form in Settings — tell us your treadmill model and we'll help you get connected. Treadmill Pro is free with no ads. Your workout data stays on your device. Terms of Use (EULA): https://treadmillpro.app/terms/ POPULAR SUPPORTED TREADMILLS: Tested and confirmed by our users on Sole, Matrix, KingSmith, WalkingPad, Goplus, Costway, Everfit, Centra, Hattrick, Aztec, Toputure, Yrun, Cursor and Decathlon, plus catalog support for NordicTrack, ProForm, Peloton, Life Fitness, Precor and Bowflex. Any FTMS-compatible treadmill connects automatically.