Amazfit targets HYROX and hybrid training with the launch of the Helio Strap Pro

Most fitness wearables still live on the wrist, which struggles to track movements like a sled push or a farmer’s carry. When you grip hard and flex your wrist, the sensor loses contact with your skin, and the heart-rate reading drops out.

Amazfit’s newest launch, the Helio Strap Pro, moves the sensors off the wrist entirely. It puts heart-rate tracking on the upper arm and adds a waist-mounted motion sensor, giving HYROX and hybrid athletes a fuller read on how their bodies hold up as fatigue sets in.

Here’s what sets it apart

The original Helio Strap was a single heart-rate band. The Pro builds on it by adding a second sensor, so you’re now wearing two—the heart-rate sensor on your upper arm and a new motion sensor at your waist. Both feed into the Zepp App. Here is how the two sensors split the work:

• Helio Core Motion HR: The heart-rate sensor, worn on the upper arm rather than the wrist. Moving it closer to the heart cuts the interference that gripping, wrist flexion, and equipment contact tend to introduce, so readings stay steadier through strength and functional work.
• Helio Core Motion Waist: The new piece, a motion sensor clipped at the waist that tracks core movement, posture, and stability as fatigue builds. It estimates muscle load station by station.

Heart rate tells you how hard your heart worked, which is a read on cardio during a run or a row. What it misses is muscular strain, and that’s the dominant stress in a HYROX race. A wrist sensor can’t pick up the leg drive in a sled push or the torso work on a SkiErg. This is where the new Helio Core Motion Waist comes in.

Sitting at your center of mass alongside the arm sensor, it reads each movement and matches it against a library of 30 HYROX and strength exercises to estimate muscle load station by station. Fixed-station weights in HYROX make that easier, since the system already knows the load and only needs to track the motion. Afterward, the Zepp App splits your effort into cardio versus muscular and grades all eight stations: SkiErg, sled push, sled pull, burpee broad jumps, rowing, farmer’s carry, sandbag lunges, and wall balls. One thing to know upfront: the full setup requires a compatible watch, either the Amazfit Balance 3 or Balance Ultra, which are not included.

The waist sensor also only works in HYROX modes for now, so it won’t track your regular gym sessions. For HYROX athletes, it’s a compelling subscription-free option. For everyone else, it’s worth seeing how far Amazfit takes the waist sensor beyond race mode.

Where to get it

The Helio Strap Pro is available for pre-order now and ships June 25, 2026, for $199.99 through Amazfit.com and select retailers. The system is FSA and HSA eligible.