Oura Ring 5 The world's smallest smart ring

Oura Ring 5 is 40% smaller than previous generations and more powerful than ever.

With 50+ health metrics and insights at your fingertips, Oura helps you turn daily habits into a longer, healthier life.

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Oura Ring 5
Oura Ring 4

Oura Ring 5

starting price$399
Sizes6-13
dimensions6.1 mm width
2.2 mm thickness
MaterialDurable, scratch-resistant titanium
Battery Life6-9 days of battery life
AccuracyMedical-grade accuracy, powered by Smart Sensing
oura membershipTrack over 50 health and wellness metrics from the comfort of your finger

Oura Membership $5.99/mo, first month free.

Oura Ring 4

starting price$399
Sizes4-15
dimensions7.80 mm width
2.97-3.51 mm thickness
MaterialTitanium or High-performance Ceramic (online only)
Battery Life5-8 days of battery life
AccuracyMedical-grade accuracy, powered by Smart Sensing
oura membershipTrack over 50 health and wellness metrics from the comfort of your finger

Oura Membership $5.99/mo, first month free.
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Size before you buy

The right size ensures optimal accuracy and comfort. Sizes differ between Oura Ring generations and standard sizes.

Ring 5 Sizing Kit

Order an Oura Ring 5 Sizing Kit here.

Ring 4 Sizing Kit

Order an Oura Ring 4 Sizing Kit here.

Ask your retailer about reimbursement for your sizing kit purchase.

The world-class

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Track 50+ biometrics with medical-grade accuracy.

Critically acclaimed, backed by science

Oura Rings

The award-winning Oura Ring is trusted by academic institutions, athletes, physicians and a growing community across the globe.

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See the complete Oura collection.

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