Health tech

Smart Ring – Heart Rate, Sleep & Stress Tracker | IP68 Waterproof Health Monitor

$49.99

Track your heart rate, sleep and stress from a ring lighter than a wedding band.

Color

Ring Size

Ring size guide

Find your US ring size by comparing the inner diameter or circumference of a ring that already fits you well against the table below.

US size	Diameter (mm)	Circumference (mm)
7	17.3	54.4
8	18.2	57.2
9	19.0	59.5
10	19.8	62.1
11	20.6	64.6
12	21.4	67.2
13	22.2	69.7

Measure at home

Wrap a strip of paper or a piece of string snugly around the base of the finger you'll wear the ring on.
Mark the point where it overlaps, lay it flat and measure that length in millimeters — that's your circumference.
Measure at the end of the day, when fingers are at their largest, and avoid measuring cold hands.
Match your measurement to the closest value above. Between two sizes? Pick the larger one for a comfortable, all-day fit.

Ships in 24-48h 30-day returns Secure payment

Use code WELCOME15 for 15% off

Why you'll love it

24/7 tracking

Heart rate, blood oxygen, sleep and stress, monitored quietly all day.

IP68 waterproof

Shower, rain or pool — no need to take it off.

Up to 7 days battery

A magnetic charge takes under an hour and lasts almost a week.

Free companion app

See every metric at a glance, free on iOS and Android.

What's in the box

1x Smart Ring
1x Magnetic charging cable
1x User manual

Ships in 24-48h IP68 waterproof Up to 7 days battery Free iOS & Android app 30-day guarantee

Optical sensor Tracks heart rate and blood oxygen every few minutes, even while you sleep.

Up to 7 days of battery A ring this small shouldn't last this long — but it does.

Magnetic charging Just set it on its base; a full charge takes under an hour.

Inside

Serious tech packed into a tiny ring

Hover (or tap) each point to see what it hides.

Optical sensor Tracks heart rate and blood oxygen every few minutes, even while you sleep.

Up to 7 days of battery A ring this small shouldn't last this long — but it does.

Magnetic charging Just set it on its base; a full charge takes under an hour.

What it tracks

Your body's vitals, always within reach

0%

Heart rate

0%

Blood oxygen

0%

Sleep quality

0%

Stress level

Up and running in 3 minutes

As easy as putting on a ring

1

Put the ring on

Pick your size and wear it on any finger. Waterproof, so you never have to take it off.

2

Connect the app

Pair it over Bluetooth with the free app in under a minute.

3

Track your data

Heart rate, sleep, oxygen and stress, updated all day without lifting a finger.

Pick yours

Three finishes, one ring

Silver

Gold

Black

Polished steel finish, the most understated of the three.

A touch bolder, perfect for wearing it out loud.

The sportiest option, built for an active everyday.

Choose my finish

Ships in 24-48h

Free returns within 30 days

100% secure payment

2-year warranty

Frequently asked questions

How do I know my size?

Measure the inner diameter of a ring that already fits you well and compare it to the size guide above.

How long does the battery last?

Up to 7 days of normal use on a single full charge.

Can I shower or swim with it on?

Yes, it's IP68 waterproof: it handles showers, rain and pool swimming.

Which phones does it work with?

It connects over Bluetooth with the free app, available for iOS and Android.

Start listening to your body today

Ships in 24-48h, 30 days to return it if it's not for you.

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