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The science

The sciencebehind asimpler band

HLTH Band is a light, screen-free band that tracks your heart, sleep, stress and activity, and explains what it finds in plain language.

Explore the science
Four HLTH Bands in pink, blue, black and orange knit, arranged on a diagonal

Built aroundeveryday wear

We designed the band for everyday people, not elite athletes. It’s worn day and night, so it has to be light, comfortable and quiet.

288
readings a day (every 5 minutes)
No
subscription
Up to
30days
battery
0
screens

Inside the band

What’s inside

Exploded view of the HLTH Band: sensor window, housing, optical sensor board, main circuit board and gunmetal frame on the knit strap

  • Optical sensors

    light shone through the skin reads your pulse and blood oxygen.

  • Motion sensor

    tracks movement, steps and how still you are at night.

  • FlowSense™ motion filtering

    filters out movement noise so heart data stays usable as you go about your day.

  • Fit tip

    wear it snug on your non-dominant wrist, a loose band gives weaker data.

What HLTH Band tracks

  • Woman asleep on her pillow wearing the HLTH Band

    Sleep

    REM, deep, light and awake time, a nightly sleep score and continuity score.

    Learn more→
  • Man in a cap stretching his arms overhead at a running track, wearing the HLTH Band

    Heart rate

    real-time readings on tap, a daily resting trend and training zones.

    Learn more→
  • Man with his hand on his hip wearing the HLTH Band below a pale jacket cuff

    HRV

    the gaps between heartbeats, tracked overnight.

    Learn more→
  • Hands typing on a laptop with the HLTH Band on the wrist

    Stress

    four levels, from relaxed to high, with averages and spikes.

    Learn more→
  • Runner seen from above wearing the HLTH Band

    Activity

    steps, calories, daily goals and 30+ sport modes.

    Learn more→
  • Man running on a track at golden hour wearing the HLTH Band

    Blood oxygen

    SpO2 trends day and night.

    Learn more→
  • Woman in a teal-tiled kitchen checking her phone, hand at her neck, wearing the HLTH Band

    Cycle

    log your period and see predictions (wellness only, not contraception).

See it for yourself

One band, every feature, no monthly fee. Wellness insight you can read at a glance.

See the HLTH Band
Couple in bed, one checking the HLTH app on her phone, both wearing the HLTH BandCouple in bed, one checking the HLTH app on her phone, both wearing the HLTH Band
HLTH

Wear Your Future.

info@hlthtrack.com

Our customer service team is available Monday to Friday, 8:00 AM to 5:00 PM (UK time).

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The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by HLTH is under license.

99 Brands Incorporated · 1309 Coffeen Ave, Sheridan, Wyoming 82801, United States.

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The HLTH Band is built for continuous, everyday wellness tracking, not clinical use. It is a wellness device and is not intended to diagnose, treat, cure, or prevent any disease.

Medical advisory board

UK

© 2026 HLTH · 99 Brands Incorporated. All rights reserved.

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