KEVENZA

Kevenza Smart Ring

★★★★★ 4.8/5 · 1,900+ reviews

$69.99 $99.99Save 30%

The smart ring that tracks heart rate, blood oxygen, sleep and recovery 24/7 — and shows it right on your finger. No wrist. No subscription, ever.

Color

Size

Size guide — find your fit

Getting your size right takes 30 seconds — measure once and order with confidence.

Wrap a thin strip of paper or string around the base of the finger you'll wear the ring on.
Mark where it overlaps, then measure that length in millimetres — that's your circumference.
Match it to the closest row below. It should sit snug, just above the knuckle.

US size	Circumference (mm)	Circumference (in)	Inner Ø (mm)
8	57.0	2.24	18.1
9	59.0	2.32	18.9
10	62.0	2.44	19.8
11	65.0	2.56	20.6
12	67.0	2.64	21.4
13	70.0	2.76	22.2
14	72.0	2.83	23.0

Between sizes? Size up. Fingers are slightly larger at the end of the day and when warm.

Try Kevenza risk-freeWear it for 30 days. If it's not for you, we'll refund you — no questions asked.

Free shipping worldwide

30-day money-back guarantee

Secure checkout

24/7 heart rate & SpO₂

Continuous heart-rate and blood-oxygen tracking, day and night.

Sleep & recovery

Nightly sleep stages and a readiness score every morning.

On-ring LED display

See your stats on the ring itself — no phone needed.

Gesture control

Swipe to scroll your phone, tap to trigger the camera — hands-free.

No subscription

Every feature included. No monthly fees, ever.

Kevenza Smart Ring $69.99

How it works

Effortless from the first second

Put it on and Kevenza does the rest — 24/7.

1

Slip it on

Wear it like any ring. It starts tracking automatically, 24/7.

2

Live your day

Sleep, train, work — Kevenza measures quietly in the background.

3

Glance or go deep

Check the on-ring display, or open the app for the full picture.

The difference

Your stats, right on the ring

Kevenza puts a crisp LED display on the band — so a single glance tells you your heart rate, steps or the time. No phone required.

Bright LED display built into the band
Adjustable brightness · left or right hand
Read your data with a glance

FAQ

Questions, answered

Everything you want to know before you wear one.

How do I choose my size?

Use the size guide above the buy button to measure your finger, then pick your size (8–14). It should fit snug, just above the knuckle.

How long does the battery last?

A charge carries you through the day and night. The ring tops up in minutes in its dock — which also works as a power bank on the go.

Do I need a subscription?

Never. Every feature and the companion app are included — no monthly fees, ever.

Is it water-resistant?

Yes. Kevenza is rated IP68, so you can wear it in the shower and while washing your hands.

Does it work with my phone?

Yes — the free companion app works with both iOS and Android.

What's your return policy?

Try Kevenza for 30 days. If it's not for you, contact us for a hassle-free return.

Loved worldwide

Real people. Real insights.

Rated 4.8/5 by wearers who wanted more than a guess.

★★★★★

I finally understand my sleep. The nightly score changed how I plan my days.

E Elena M.
Verified owner

★★★★★

Love that I can just glance at the ring for my heart rate mid-workout.

M Marcus T.
Verified owner

★★★★★

Same insights as the big brands, but no monthly fee. That sold me.

P Priya S.
Verified owner

★★★★★

The gold finish is gorgeous — looks like jewelry, tracks like a lab.

S Sofia R.
Verified owner

★★★★★

Tops up fast in the little dock. I barely notice I'm wearing it.

D Daniel K.
Verified owner