Domhong R03 Smart Ring
Black, Size 9
Silver, Size 10
Available Options
A discreet smart ring designed for continuous health and fitness tracking, featuring heart rate, blood oxygen, and stress monitoring without the need for a subscription. It offers long battery life, waterproof durability, and multiple exercise modes for active lifestyles, along with a remote control for hands-free photography.
Features
- Heart rate and blood oxygen monitoring
- No app subscription required
- 5ATM waterproof rating
- Long battery life up to 7 days
- Multiple exercise modes tracking
- Remote control photography feature
Product details
General specs
- Brand: Domhong
- Model: R03
- Battery Life: 5–7 d
- Water Resistance: 5ATM
Starting from $29.99
Last price update: 11/9/25
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June 8, 2025
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