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Amazfit has unveiled the Helio Strap Pro, a body-worn training system designed to help HYROX and hybrid athletes better understand how their bodies perform under load.
The wearable brand, owned by Zepp Health, is positioning the device as a multi-sensor system that captures heart rate, movement quality, stability and muscle load to provide a more complete view of performance under fatigue.
Beyond wrist-based tracking
Building on the screen-free Helio Strap, the Helio Strap Pro adds a dedicated waist-mounted motion sensor that captures core-body movement and stability during training.
Combined with upper-arm heart-rate sensing and compatible Amazfit smartwatches, the system is designed to provide a broader picture of cardio effort, movement quality and muscle load than wrist-based tracking alone.
The device represents the next stage of Amazfit’s Hybrid Training System, extending performance tracking beyond heart rate to help athletes understand how movement, efficiency and muscle load change as fatigue builds.
Scott Shepley, Head of Global Marketing at Amazfit, explained the rationale behind the product.
“Heart rate tells athletes how hard they are working, but it does not fully explain how their movement changes as fatigue builds,” Shepley commented.
“Helio Strap Pro introduces a new approach to hybrid training by connecting upper-arm heart-rate data with waist-based motion sensing and smartwatch performance data. It represents the next step in our Hybrid Training System, giving athletes a more complete understanding of how effort, movement and performance change across a demanding workout.”
How the system works
The Helio Strap Pro works with the HYROX Race and HYROX Simulation modes available on the Amazfit Balance 3 and Balance Ultra. At launch, one of these watches is required to use the full system.
During supported workouts, the watch and two Helio Strap Pro sensors work together to capture data across the body.
The Helio Core Motion HR is worn on the upper arm, closer to the heart, to provide stable heart-rate readings during gripping, wrist flexion and high-intensity movement. This placement helps reduce interference caused by wrist flexion, gripping and equipment contact during strength, functional fitness and hybrid training.
The Helio Core Motion Waist is secured at the waist to capture core-body movement, positioning and stability.
The Balance 3 or Balance Ultra tracks workout performance and cardio effort from the wrist. Support for additional Amazfit watches is planned for the future.
Post-workout analysis
After training, the Zepp App brings movement, muscle load and cardio effort together into a structured view of performance.
Athletes can review and evaluate their performance at each individual HYROX station, including SkiErg, sled push, sled pull, burpee broad jumps, rowing, farmer’s carry, sandbag lunges and wall balls.
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The launch experience is focused on the eight movements used in HYROX competition.
Training, recovery and daily life
The Helio Strap Pro is part of Amazfit’s broader Hybrid Training System, which connects workout execution with recovery and daily readiness.
The Zepp App connects workouts, recovery, daily habits, nutrition and performance trends into one continuous view of progress. HybridCharge Energy Intelligence incorporates BioCharge, Training Load and LifeLoad to help athletes understand how workouts, recovery and real-world factors such as stress, travel and fatigue affect their capacity over time.
Because the Helio Strap Pro can be worn without a screen, tracking can continue when an athlete removes their watch. It can also be paired with compatible Amazfit smartwatches or used alongside a traditional timepiece, helping reduce gaps across training, sleep and recovery.
Connectivity and ecosystem integration
Wearing the heart-rate sensor on the upper arm reduces interference commonly caused by wrist movement, gripping and equipment contact during strength and functional training.
Real-time heart-rate data can be shared over Bluetooth with compatible Amazfit smartwatches, third-party sports watches, cycling computers, fitness equipment and training apps.
Health and activity data, including HRV, can also be synchronised with Apple Health through the Zepp App.
Specifications
The device supports more than 60 sports modes across strength, running, HIIT and other training disciplines. It offers continuous heart rate, HRV, sleep and recovery monitoring along with 5 ATM water resistance and Bluetooth 5.2 connectivity.
Battery life is rated at up to 11 days for the Helio Core Motion HR and up to 40 days for the Helio Core Motion Waist. No monthly subscription is required.
Pricing and availability
Helio Strap Pro is available from the end of June 2026 for $200 through Amazfit.com and select retailers. Regional availability and shipping timing may vary.
The package includes the Helio Core Motion HR, Helio Core Motion Waist, Helio Pro Clip, wristband, armband and magnetic charging head.
The device supports Android 8.0 and above and iOS 17.0 and above through the Zepp App.
Last Updated on June 20, 2026 by Nick Ross
