Your body speaks. SĒNS translates.

A smart ring that reads your sleep, heart rate, stress and energy around the clock — and every morning tells you how to make the most of the day.

Available on iOS coming soon to the App Store
Features

Health
you can understand

The ring measures, the app explains. No spreadsheets — only what matters today.

Sleep score 86
  • Deep1h 48m
  • REM1h 35m
  • Light4h 19m

Sleep and the morning report

Sleep stages, a score for the night and your personal baseline. In the morning — a short report: how the night went and what it means for the day.

Why do I feel sluggish today?
Overnight your resting heart rate ran 6 bpm above baseline and you got less deep sleep than usual. Energy reserve is 61% — better to move the hard workout to tomorrow.

An AI assistant that knows your data

Ask about your sleep, heart rate or load — the assistant answers from your own numbers, not generic advice.

Heart rate and HRV

Around the clock, with a personal baseline: the app compares you to you, not to an average.

Stress

From HRV and resting heart rate in 30-minute windows — no false alarms after a walk.

Energy

Each morning, a reserve for the day based on sleep and recovery. Know when to push and when to save your strength.

Activity

Steps, intensity, workouts and inactive time — a daily score and crowns for your best days.

Nutrition

Snap a photo of your meal — calories and macros are counted for you. Water in one tap.

Cycle and health

Cycle forecast from night-time temperature and a load radar: when your body needs more rest.

The ring

A design that stays out of the way

A light titanium ring with optical sensors and a temperature sensor. No screen, no buzzing on your finger — you just wear it, and it works.

The SĒNS smart ring: titanium body with optical sensors on the inside
  • Heart rate and HRV
    optical sensor, measured around the clock
  • Temperature
    night-time trend for cycle and load
  • SpO₂
    blood oxygen during sleep
  • Steps and sleep
    accelerometer, sleep stages and activity
The app

Everything the ring measures,
on screens you understand

Every metric has its own module: the number for the day, a chart and an explanation of what to do about it. These are real SĒNS screens.

Sleep — In the morning you know how the night went
Sleep

In the morning you know how the night went

Sleep score, stages, sleep debt and efficiency — plus a short morning report on what it means for your day.

Heart — Heart rate and HRV — around the clock
Heart

Heart rate and HRV — around the clock

Average and current heart rate, minimum and maximum, overnight HRV and SpO₂. Everything is compared to your personal baseline, not an average.

Energy — A reserve of strength for the whole day
Energy

A reserve of strength for the whole day

In the morning, an energy percentage based on sleep and recovery. During the day, an hourly forecast: when you'll have focus, and when productivity.

Stress — Stress without false alarms
Stress

Stress without false alarms

30-minute windows from HRV and resting heart rate: how much of the day was tension, baseline and recovery — with a timeline of events.

Activity — Steps, workouts and calorie balance
Activity

Steps, workouts and calorie balance

Step goal, activity score, calories burned and the deficit — on one screen. Start a workout right from here.

Nutrition — Take a photo — it counts itself
Nutrition

Take a photo — it counts itself

Calories, protein, fat and carbs from a photo or by voice, water in one tap, and SĒNS recipes built in.

How it works

Three steps to feeling better

01

Put on the ring

Pick your size and put SĒNS on. It is so light you will forget about it in a day — and it will keep measuring.

02

Connect the app

The ring syncs over Bluetooth by itself. First comparisons with your baseline after a week, a mature baseline after a month.

03

Get your reports

Every morning — a short report on the night and your energy reserve. During the day — hints on when to push and when to rest.

Pre-order

Start with SĒNS

The first batch is limited. Leave a request — we will write as soon as the ring is ready to ship and help you pick a size.

  • SĒNS ring + app
  • Sleep, heart rate, stress, energy, activity, nutrition, cycle
  • AI reports and assistant
  • Help with sizing
The SĒNS app

Download and start understanding yourself

An app for iPhone. Connecting the ring takes a couple of minutes.