Sleep Wearable Form Factor
Compare smart rings, fitness bands, and smartwatches for overnight sleep tracking: comfort, battery habits, and sleep metric depth.
SEEKZERO Black, Size 8 Smart Ring
Available Options
Current
—
Black, Size 8
Retailer
€102.71
Available to order
Price history by variant
Volatility: MediumFeatures
- Medical-grade sensors for health data tracking
- 24/7 health tracking: activity, heart rate, sleep, stress, SPO2, HRV
- No subscription fees; lifetime access to app features
- 8–10 days battery life
- Water-resistant: 5ATM (suitable for daily use, hand washing, exercise)
- Made from high-quality titanium alloy, skin-safe and hypoallergenic
Product details
General specs
- Brand: SEEKZERO
- Model: Smart Ring
- Material: Titanium
- Battery Life: 7-10 days
- Compatibility: iOS, Android
- Water Resistance: 5ATM
If you are interested in more details, you can find full information on the seller's page.
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Shipping options
Delivery to 
United States
United States
Available
For anyone tracking their daily wellness or managing stress, the SEEKZERO Smart Ring offers a discreet way to monitor your health without constant phone checks. While many focus on fitness, this ring emphasizes mental well-being by giving you a clear picture of how your body responds to daily life.
The medical-grade sensors capture subtle changes, like a slight heart rate dip during deep sleep, so you can adjust habits for better rest. With 8–10 days of battery life, you can wear it through busy weeks without worrying about charging. The timeline feature lets you journal health moments, making it easy to spot patterns over time. Sync data via Bluetooth to the JC Ring app on iOS or Android, and share insights with family to stay connected on wellness goals. Its titanium alloy build is skin-safe and water-resistant for all-day comfort, from workouts to hand washing.
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| Brand | RENPHO | Oura | OURA | |||
| Model | R-MZW01 | JZ90-54217-08 | JZ90-54217-11 | Smart Ring | ||
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| Price | €102.71 | €61.44 | €174.70 | €295.85 | €295.85 | €52.67 |
| Seller | Retailer | Retailer | Retailer | Retailer | Retailer | Retailer |
| Update | Mar 21, 2026 | Mar 21, 2026 | May 15, 2026 | Jun 24, 2026 | Mar 21, 2026 | May 3, 2026 |
| Weight | 1.0 | 0.0881849048 pounds | 0.011464037624 lbs | 0.011464037624 pounds | ||
| Width | 0.71 inches | 0.9842519675 in | 1.1023622036 inches | |||
| Height | 0.12 inches | 0.2755905509 in | 0.2755905509 inches | |||
| Length | 0.71 inches | 0.9842519675 in | 1.1023622036 inches | |||
| Material | Titanium | Titanium | Titanium | |||
| Battery Life | 7 days | 5-8 days | 5 to 8 days | |||
| Compatibility | iOS, Android | Android, iOS | Android, iOS | iPhone, Android | ||
| Water Resistance | 5ATM | Yes | Water resistant | |||
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