A smart ring for sleep
Sleep is the whole game.
Aurora reads your night, then tells you one thing: push, or hold back.
Free EU deliveryNo subscription
Every morning
Three things it tells you.
Not forty charts. Three answers, every morning.
85Sleep
How well you slept
One score for the night, and the two or three things that shaped it.
7.2Readiness
Whether to push today
Last night measured against your own baseline, answered in a word.
62Activity
What your effort cost
Sessions counted separately from walking about.
Figures shown are examples of the app's morning summary.
While you sleep
The eight hours you never get to watch.
Aurora reads every stage of the night and has an answer waiting before you reach for the kettle.
The app
All the data. One clear morning view.
Aurora pairs with COLMI Fitness, the free companion app for iOS and Android. The ring collects; your phone is where you read it.
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Install COLMI Fitness
Free on the App Store and Google Play. No account fee, ever.
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Pair
Hold the ring near your phone and confirm. It stays paired.
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Wear
Nothing to press and nothing to start. It records the whole night.
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Understand
The night is scored before you are properly awake: one screen with the answer, detail underneath if you want it.
COLMI Fitness · free on iOS and Android · Bluetooth pairing · no account fee
Own it outright
Pay once. Then it is yours.
Your body should not be a subscription.
With Aurora
- €149, once
- Every metric unlocked on day one
- Export your data whenever you like
- Still works in five years, untouched
With a subscription tracker
- A fee every month, indefinitely
- The useful metrics sit behind the paywall
- Export is limited or unavailable
- Stop paying and it stops telling you anything
Based on publicly advertised subscription plans at time of writing, for general guidance only. Competitor pricing changes — please check their current terms. Prices shown include VAT.
What arrives
In the box.
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1
The Aurora Ring
In the size and finish you chose.
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2
Magnetic charging dock
Roughly an hour to full.
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3
Charging cable
Into the dock, into any USB adapter.
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4
Quick guide
Pairing, wearing and charging on one card.
Before you buy
Four quick ones.
Everything else is answered in full on the FAQ page.
Read the FAQIs there really no subscription?
Correct. You buy the ring once and every metric, trend and export is unlocked permanently. There is no paid tier, and nothing stops working later.
Which app does it use?
COLMI Fitness, free on the App Store and Google Play. It pairs over Bluetooth with current iOS and Android phones, and there is no account fee.
How do I know my size?
The fit finder on the product page takes about a minute — measure a ring you already wear, or wrap a strip of paper round the finger. If it lands wrong, we post the right one and cover the postage both ways.
Ready when you are
€149 once. €0 a month.
Free EU delivery, a free exchange if the size is wrong, and 14 days to change your mind.
Aurora is a general wellness product. It measures and reports trends in sleep, activity and recovery. It is not a medical device and is not intended to diagnose, treat, cure or prevent any disease or condition.
Nothing shown in the app or on this site is medical advice. If you have a health concern, speak to a qualified healthcare professional.