The wearable designed for lasting progress

24/7 health insights with personalized coaching to help you improve how you sleep, train, and feel — starting day one.

Daily health

Wear it daily. Improve every day.

Continuous data turns into clear, personalized guidance — so every day you make a little more progress.

Complete picture

Get a complete picture of your health

One wearable tracks the systems that matter — recovery, sleep, strain, stress and heart — and turns them into guidance you can act on.

Recovery
Sleep
Strain
Stress
Heart health
Health monitoring
Women's health
Membership

Choose your membership

Every plan includes the device, 24/7 tracking and personalized insights. The longer you commit, the less you pay.

24-Month
£16/mo
Billed every 2 years
  • Device included
  • 24/7 tracking
  • Personalized insights
  • Free shipping
Free trial available
The science

Backed by science. Trusted by the best.

Developed with a team of physiologists and researchers, and worn by elite athletes and everyday members alike.

Sarah J.Marathoner
I finally understand why some days feel harder than others.
Daniel R.Verified member
A coach's takeStrength & conditioning
Dr. Lena M.Physiologist
The sleep coaching alone was worth it.
Priya K.Verified member
Marcus T.Pro cyclist
Wore it for a month and never looked back.
Tom B.Verified member
The teamResearchers & PhDs
Always on

Built to be worn 24/7

Waterproof, durable and barely-there — so it keeps tracking while you sleep, train, shower and live.

🔕

Zero distractions

No screen, no notifications — just data working quietly in the background.

📡

Always-on sensors

Continuous tracking every second of every day, no taps required.

🔋

14+ day battery

Charge on the go with the slide-on pack — never take it off.

🎛️

Completely customizable

Swap bands and wear it your way, from workout to black-tie.

Wearability

One device, endless ways to wear it

Live in luxe

A premium leather band that takes you from training to the boardroom without missing a beat.

Built for sweat

A breathable, sweat-proof band engineered to stay put through your hardest sessions.

All-day comfort

A soft, stretch-knit band you'll forget you're wearing — day and night.

Performance knit

A technical knit with extra hold for high-intensity training.

Everyday essential

The classic band that does it all, in the colours you live in.

Wear it in your clothing

Sensor-ready apparel lets you track without a band at all.

Risk-free

No other wearable lets you try before you buy

Start your free trial today — keep going only if you love it.

Important information

  1. Not a medical device. Insights are for general wellness and are not intended to diagnose, treat, cure or prevent any disease.
  2. Free-trial terms apply. Membership required after the trial period; cancel any time before renewal.
  3. Battery life varies with usage, settings and environmental conditions.