Amazfit has opened pre-orders for the Helio Strap Pro, a screenless tracker priced at 199.99 USD (about 32,000 yen), with shipping starting on June 25, 2026. The device pairs a heart-rate sensor worn on the upper arm with a motion sensor worn at the waist, allowing it to measure the quality of strength and cardio training in fine detail. Amazfit positions it mainly for HYROX competitors and for people who mix strength and endurance work in hybrid-style training.
Two sensors that capture body movement in three dimensions
The Helio Strap Pro is built around two modules with different roles. The first, the Core Motion HR, packs both a heart-rate sensor and a motion sensor and is designed to be worn on the upper arm. Because the wrist moves a great deal during exercise and tends to produce noisy signals, placing the module on the upper arm makes it easier to capture more stable heart-rate data.
The second module, the Core Motion Waist, is a motion sensor worn around the waist. Fastened to the torso with either a clip or a strap, it measures core movement, posture, and stability. By picking up the motion of the waist on a separate channel, the system can gauge the load of strength and cardio workouts more accurately, reading even core stability and which muscles are under strain, according to Amazfit. The goal is to capture full-body movement in three dimensions from two points, the upper arm and the waist, rather than from the wrist alone.
Aimed at HYROX and hybrid training
The Helio Strap Pro supports more than 60 sport modes, giving it broad versatility across a wide range of activities. Where it puts the most emphasis is on HYROX, a competition that combines running with strength training, and on people who train in a hybrid style that blends multiple kinds of exercise. Capturing the state of the core through the waist sensor is the key to higher measurement accuracy in this kind of movement-heavy training.
For HYROX specifically, the tracker can be used together with the HYROX Race and HYROX Simulation modes built into Amazfit's Balance 3 and Balance Ultra smartwatches. It is positioned to support both race-oriented practice and simulation-style training with dedicated measurement.
Long battery life and everyday health tracking
Taking advantage of its simple, screenless design, the device offers relatively long battery life. The waist-worn Core Motion Waist is rated for up to 40 days on a single charge, while the heart-rate-measuring Core Motion HR is rated for up to 11 days. That cuts down on the chore of charging almost every day and makes it easier to keep wearing the device continuously.
Beyond workout measurement, it carries over everyday health-tracking features as well. Heart rate can be monitored around the clock, and sleep and recovery are recorded too. From this data the device calculates a HybridCharge Index, which shows how ready you currently are to train on an easy-to-read scale from 0 to 100, giving you a guide for setting training intensity. Note that these readings are meant only as a reference for health management and do not replace a medical diagnosis.
Price and positioning
The price is 199.99 USD (about 32,000 yen), and the package includes both the Core Motion HR and the Core Motion Waist. Compared with the previous Helio Strap, the price has doubled, yet it still comes in below the list price of a mid-range smartwatch such as Garmin's Instinct 3 (299 USD, about 48,000 yen), giving it an edge on price.
※1 USD = 162 JPY (as of June 2026)
With its pared-down screenless band design, the Helio Strap Pro is built to focus on measurement itself rather than on a display. Instead of checking information on a screen the way a watch does, it is meant to capture body movement accurately during exercise and let you review it carefully in the app afterward.
Summary
The Amazfit Helio Strap Pro is a screenless tracker that combines an upper-arm heart-rate sensor with a waist motion sensor to measure the quality of strength and cardio training in three dimensions. It brings together more than 60 sport modes, integration with HYROX, up to 40 days of battery life, and the HybridCharge Index that shows your readiness to train, all at 199.99 USD (about 32,000 yen) and at a price below the Garmin Instinct 3. For anyone who wants to track their training in earnest, it looks set to be an option that differs from a wrist-only tracker.
