RENPHO Lynx Smart Ring

The RENPHO Lynx Smart Ring puts advanced health tracking on your finger — a lightweight, comfortable alternative to bulky wearables that monitors your body around the clock without getting in the way of your day.

Health insights, day and night

Track your heart rate, sleep stages, activity, and daily readiness in a discreet, always-on design. The Lynx delivers the data you need to understand your body and make smarter choices about rest, movement, and recovery. (For wellness insights only; non-medical use.)

Designed for all-day comfort

Crafted to be worn 24/7, the smooth, lightweight ring is barely noticeable on your finger — comfortable enough to sleep in and durable enough for everyday wear. Available in Black and Silver finishes across a full range of sizes.

Long-lasting battery

Spend more time tracking and less time charging, with a battery built to keep up with your routine and a quick, convenient recharge.

• Continuous health tracking — heart rate, sleep, and activity monitoring
• Lightweight, comfortable design — made to wear all day and night
• Multiple finishes & sizes — Black and Silver, sizes 6–11
• Long battery life — all-day tracking with a fast recharge
• Discreet alternative to a smartwatch — all the insight, none of the bulk

Not sure of your size? Order our sizing kit first to find your perfect fit before choosing your ring.