Oura JZ90-54217-10 Ring 4
The Oura Ring 4 is a smart ring that tracks over 50 health metrics, including sleep, activity, and heart rate. With Smart Sensing adaptive technology and a no-screen, vibration-free design, it provides continuous health insights without distractions. It features an all-titanium, water-resistant construction for 24/7 comfortable wear. The ring delivers up to 8 days of battery life, requires the Oura sizing kit for accurate fit, and includes a 1-month membership trial for personalized guidance via the Oura App on iOS and Android.
- 7 variants
- Tracks 50+ health metrics
- Size: 4 variants
Available variants (7)
Choose a variant, then open its detail page for seller-specific information.
Gold, Size 8
Amazon- Width
- 0.8661417314 inches
- Length
- 0.8661417314 inches
- Size
- 8
Silver, Size 8
Amazon- Width
- 0.9842519675 in
- Length
- 0.9842519675 in
- Size
- 8
Silver, Size 10
Amazon- Width
- 1.0629921249 inches
- Length
- 1.0629921249 inches
- Size
- 10
Silver, Size 9
Amazon- Width
- 1.0236220462 inches
- Length
- 1.0236220462 inches
- Size
- 9
Silver, Size 11
Amazon- Width
- 1.1023622036 inches
- Length
- 1.1023622036 inches
- Size
- 11
Black, Size 11
Amazon- Width
- 1.1023622036 inches
- Length
- 1.1023622036 inches
- Size
- 11
Stealth, Size 11
Amazon- Width
- 0.9842519675 inches
- Length
- 0.9842519675 inches
Variant comparison
Compare prices, availability, and key variant differences in one table.
| Feature | Gold, Size 8 | Silver, Size 8 | Silver, Size 10 | Silver, Size 9 | Silver, Size 11 | Black, Size 11 | Stealth, Size 11 |
|---|---|---|---|---|---|---|---|
| Price | RUB 29,115.65 | RUB 25,101.48 | RUB 25,467.07 | RUB 25,174.45 | RUB 25,467.07 | RUB 25,467.07 | RUB 25,467.07 |
| Updated | Jun 10, 2026 | Jun 14, 2026 | Jun 18, 2026 | Jun 16, 2026 | Dec 6, 2025 | May 27, 2026 | Jun 16, 2026 |
| Availability | Available to order | Available to order | Available to order | Available to order | Available to order | Available to order | Available to order |
| Width | 0.8661417314 inches | 0.9842519675 in | 1.0629921249 inches | 1.0236220462 inches | 1.1023622036 inches | 1.1023622036 inches | 0.9842519675 inches |
| Length | 0.8661417314 inches | 0.9842519675 in | 1.0629921249 inches | 1.0236220462 inches | 1.1023622036 inches | 1.1023622036 inches | 0.9842519675 inches |
| Size | 8 | 8 | 10 | 9 | 11 | 11 | — |
| Color | Gold | Silver | Silver | Silver | Silver | Black | Stealth |
| Health Metrics | Sleep, Activity, Women's Health, AI Advisor, Stress, Heart Health, Metabolic Health | Sleep, Activity, Stress, Heart Health, Metabolic Health, Women's Health | Tracks over 50 metrics including sleep, activity, stress, heart health, women's health | Sleep, Activity, Stress, Heart Health, Metabolic Health, Women's Health | Tracks over 50 health metrics including sleep, activity, stress, heart health, metabolic health, and women's health | — | — |
| Model | Oura Ring 4 | Ring 4 | Oura Ring 4 | Oura Ring 4 | Oura Ring 4 | — | 4 |
| Height | 0.2755905509 inches | 0.2755905509 in | 0.2755905509 inches | 0.2755905509 inches | 0.2755905509 inches | 0.2755905509 inches | 0.3149606296 inches |
| Membership | First month included, then $7.99/month | First month free, then $7.99/month | — | First month free, then $7.99/month | First month free for new members, then $7.99/month | — | First month free, then $7.99/month |
Amazon live offers
Offers updated
| Seller | Condition | Price | Shipping | Updated | |
|---|---|---|---|---|---|
| Third-party seller | Used - Like New | RUB 21,161.02 | Free shipping | 6/18/26 | View offer |
| Third-party seller | Used - Like New | RUB 21,818.49 | Free shipping | 6/18/26 | View offer |
| Third-party seller | Used - Like New | RUB 21,818.49 | Free shipping | 6/18/26 | View offer |
| Third-party seller | Used - Like New | RUB 21,818.49 | Free shipping | 6/18/26 | View offer |
| Third-party seller | Used - Like New | RUB 21,818.49 | Free shipping | 6/16/26 | View offer |
| Third-party seller | Used - Like New | RUB 21,818.49 | Free shipping | 6/18/26 | View offer |
| Third-party seller | Used - Like New | RUB 21,818.49 | Free shipping | 6/18/26 | View offer |
| Third-party seller | Used - Like New | RUB 21,818.49 | Free shipping | 6/18/26 | View offer |
| Third-party seller | Used - Like New | RUB 22,548.21 | Free shipping | 6/18/26 | View offer |
| Third-party seller | New | RUB 24,809.60 | Free shipping | 6/18/26 | View offer |
Overview
Compare Oura JZ90-54217-10 Ring 4 variants, pricing tiers and key differences.
Learn moreHow variants differ
- Width
- Length
- Size
Who each variant is for
- Start with your budget: the visible price spread across variants is about 16%.
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