Advanced & devices

Smart ring (sleep, HRV, SpO2)

Name: Smart ring (sleep, HRV, SpO2)
Brand: Stack by Vila Health
Price: 133 EUR
Availability: InStock

Wearable ring tracking sleep stages, heart-rate variability and blood oxygen — no monthly subscription.

BEvidence

Suggested dose

Wear nightly

Timing

Continuous

Time to effect

4 weeks

Est. cost

~133 EUR/mo

What the evidence says

Modern rings track total sleep, timing and HRV trends with decent validity vs. polysomnography for healthy adults. The behavior-change benefit is the main value — visible trends help motivated users improve sleep timing and stress recovery.

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⚕ This is general wellness information, not medical advice. It does not replace consultation with a healthcare professional. If you take prescription medication, are pregnant, or have a medical condition, talk to your doctor before starting new supplements.