AutrefoisElf Smart Ring Gen 3 for Women & Men — Gold, IP68 Waterproof Smart Health Ring with Heart Rate & Sleep Tracking

The AutrefoisElf Smart Ring Gen 3 is a compact, waterproof wearable that monitors heart rate, sleep, stress indicators and daily activity while pairing to a free app with no subscription.

This slim gold smart ring combines everyday comfort with continuous biometric tracking for people who want discreet data without recurring costs. Built-in sensors collect heart rate, blood oxygen, steps and multi-stage sleep automatically; the companion app displays trends, readiness scores and 139+ sport mode logs. IP68 water resistance and quick charging mean you can leave it on for showers, workouts and travel.

How accurate is the tracking compared with a smartwatch?

The ring uses high-precision optical sensors and algorithms tuned for fingertip readings, which often yield stable heart-rate and SpO2 measurements during rest and low-motion activities. While it provides reliable trend data and daily averages, wrist-based or clinical devices may differ in specific scenarios such as intensive exercise or medical diagnostics.

• Optical heart-rate sensor for resting and daily monitoring
• Blood oxygen (SpO2) sampling for spot checks and trends
• Automatic sleep stage detection: deep, light, REM and wake
• Step, distance and calorie estimates with 139+ sport modes

What features help with sleep and recovery planning?

The ring records sleep duration and stages throughout the night, then generates a readiness score that reflects sleep quality and recovery trends. Use the app to view nightly breakdowns, compare week-to-week trends, and adjust activity or rest based on recovery insights.

• Continuous overnight monitoring with automatic detection
• Readiness score informed by sleep and biometric signals
• Nightly and weekly visual charts in the no-cost app
• Silent vibrating alerts and remote shutter for hands-free photos

How durable is the ring for active, everyday use?

The Gen 3 ring carries an IP68 rating, designed to resist water and dust for swimming, showering, or rainy commutes. A fast 1-hour charge yields multiple days of active use, so it’s suitable for travelers, athletes and anyone who prefers minimal charging interruptions.

• IP68 waterproof construction for wet conditions and swimming
• 1-hour quick charge for 3–5 days active use, 5–7 days standby
• Solid metal finish in gold with comfortable rounded profile
• Remote shutter and compatible with Android and iOS smartphones

Who is this for: The AutrefoisElf Smart Ring Gen 3 is aimed at adults seeking a low-profile wearable that fits like jewelry while delivering continuous lifestyle and fitness data without subscription fees. It’s ideal for people who want 24/7 sleep and recovery insights, swimmers and commuters who need waterproof reliability, and users who value discreet design over a screen-focused smartwatch. Before ordering, measure your finger circumference and use the size chart or sizing kit to ensure accurate sensor contact and a comfortable fit (available in sizes 6–14).