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Ring vs Tracker
Compare screen-free rings with wrist fitness trackers for sleep comfort, workout feedback, sizing, battery life, and when a smartwatch is the fallback.
RENPHO R-MZW01 Silver Size 8 Lynx Smart Ring
Available Options
Current
Silver Size 8
Amazon
€145.50
Available to order
Features
- 7-day battery life
- No subscription fees
- 5ATM waterproof
- Titanium exterior
- Charging case included
- Sleep tracking
- Blood oxygen monitoring
- Stress tracking
- Heart rate monitoring
- Step and distance tracking
- Calorie tracking
- HSA/FSA eligible
Product details
General specs
- Brand: RENPHO
- Model: R-MZW01
- Material: Titanium
- Battery Life: 7 days
- Subscription: None
- Charging Case: Included
- Compatibility: iOS, Android
- Eligible Hsa/Fsa: Yes
- Water Resistance: 5ATM
If you are interested in more details, you can find full information on the seller's page.
Amazon live offers
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Top live offer
€145.50
Free shipping
New
Third-party seller
FBA
Shippable
Offers updated: 9/2/26
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Price History for seller Amazon
Shipping options
Delivery to 
United States
United States
Available
The RENPHO Lynx Smart Ring is for the data-driven person who wants to understand their body without wearing a bulky watch. It's perfect for tracking sleep patterns and all-day activity, giving you clear insights into your health.
Unlike standard fitness trackers, this ring focuses on precision and comfort. The titanium exterior is durable enough for swimming and hiking, yet lightweight for 24/7 wear. A sophisticated chip ensures accurate heart rate, blood oxygen, and stress monitoring. You get detailed sleep analysis without a subscription, syncing seamlessly with Apple Health and Google Health Connect.
The 7-day battery life and included charging case mean you never worry about power. Simply recharge the case, and your ring is always ready for travel or daily use. Before buying, use the official sizing kit for a perfect fit. This is a practical tool for anyone serious about their health data.
RENPHO R-MZW01 Silver 7-day battery life
€145.50
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
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