The world’s first real intensity measurement
In endurance training, finding the right workout intensity is key to getting the best results. Many athletes wonder if they’re training too hard or not enough. Heart rate zones have been used to estimate intensity, but they don’t account for changes from one day to another, between different activity types or during long workouts.
Now, Suunto ZoneSense offers a breakthrough in tracking real-time intensity. It uses heart rate variability (HRV) to give accurate insights, helping athletes optimize their performance like never before.
Suunto ZoneSense, powered by MoniCardi's cutting-edge technology, measures heart stress through heart rate variability (HRV), offering athletes real-time insight into their training intensity. Driven by the advanced DDFA index, which tracks changes in metabolic state, ZoneSense provides accurate feedback on whether your intensity is aerobic, anaerobic, or reaching VO2 max levels. This helps you to stay in the optimal training zone.
Suunto ZoneSense helps you better understand the state of your body. Since our bodies perform differently each day, factors like one's menstrual cycle, training conditions, and recovery can affect threshold levels. While laboratory tests provide a snapshot of these thresholds for a specific day, ZoneSense offers real-time measurements every time you train, ensuring you always have the most up-to-date insight into your performance.
ZoneSense works across all cardiovascular sports, from trail running and cycling to swimming and cross-country skiing. No need for personal settings like age, gender, or activity level — ZoneSense learns from your workouts, adapting to your performance in different sports for even greater accuracy.
All Suunto users training with a heart rate belt can unlock ZoneSense intensity analysis through the Suunto app. This post-exercise insight helps you understand how your body responded to each session, empowering you to make smarter training decisions.
For real-time tracking, ZoneSense is available on the latest Suunto watches – Suunto 9 Peak Pro, Suunto Vertical, Suunto Race, and Suunto Race S. Simply download the free ZoneSense app from the SuuntoPlus Store to your watch, pair your heart rate belt to the watch, and start training!
"Method provides the best overall agreement with the lactate thresholds and provides a promising, cost-effective alternative to conventional protocols"
Estimation of Physiological Exercise Thresholds Based on Dynamical Correlation Properties of Heart Rate Variability, Frontiers in Physiology, 2023
Suunto ZoneSense Explained
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Interested in testing ZoneSense together with Suunto?
If you are a national team, sport scientist or pro-club interested in ZoneSense, please reach out to Suunto here.