The lumthou Enamel Craft Smart Ring pairs a jewelry-inspired enamel finish with everyday fitness tracking, offering sleep, heart rate, and SpO2 monitoring without any recurring subscription cost.
Its lightweight ring form factor is designed for continuous, all-day wear, syncing with a companion app over Bluetooth for iPhone and Android.
This device supports general wellness tracking and is not a medical monitoring device — consult a healthcare professional for any health concerns.
Product Specs
- Finish: Enamel craft design
- Tracking: Sleep, heart rate, SpO2, steps, calories, activity
- Water resistance: IP68 waterproof
- Connectivity: Bluetooth, iOS and Android compatible
- Fees: No subscription required
How People Use a Smart Ring
- Overnight wear for sleep-stage and recovery tracking
- Daily wear for heart rate and activity monitoring
- Workouts and hand-washing thanks to the waterproof build
- As a lighter, more discreet alternative to a smartwatch
Build & Finish
The enamel craft finish is applied for a consistent, jewelry-like appearance across the ring’s surface, designed to hold up to daily wear, washing, and workouts without losing its look.
Care
Wipe clean with a soft, damp cloth after workouts. Charge regularly using the included charger, and avoid harsh chemicals or abrasive cleaners on the enamel finish.
Who It’s For
A good fit for anyone who wants essential fitness and sleep data in a lightweight, jewelry-like form factor without paying a monthly app fee. Those looking for more detailed sleep, recovery, and biometric insights may also want to compare it with the Oura Ring 4 smart fitness tracker.
