Quick facts
- Brand: AutrefoisElf
- Price: USD 58.95
- Rating: 4.60 (8 reviews)
The AutrefoisElf Smart Ring Gen 4 is a modern, screen-free fitness tracker designed for everyday wear in a lightweight, ultra-thin form. This Gold ring (Size 8) focuses on round-the-clock health and activity insights—without adding a subscription fee—so you can keep an eye on trends like heart rate, HRV, oxygen saturation (SpO2), stress, and sleep.
You can view the current price and full details on Amazon here.
For training and daily movement, you get 140+ sport modes to help log a wide range of activities. It’s also built to keep up with real life: with 50m water resistance (IP68 listed) you can wear it through workouts, showers, and swimming. Charging is flexible too—use the included cable for direct charging or top up via the portable charging case for extended time away from an outlet.
Before you buy: This ring uses a dedicated sizing system. Check the brand’s size chart and measure carefully (a sizing kit is recommended by the brand) to help ensure comfort and reliable sensor contact.
- 24/7 tracking for heart rate, HRV, SpO2, stress, and sleep—no subscription required
- Dual charging: direct cable charging or portable charging case
- Fast 1-hour charge; rated for up to ~5 days average battery life (varies by use)
- 140+ sport modes to log workouts and activity
- Water resistant up to 50 meters (IP68 listed) for swimming/showering and everyday wear
- Android/iOS compatibility (Android 8.0+, iOS 10.0+; HarmonyOS listed)
- Extra convenience features include female cycle tracking and shake-to-capture remote camera
What’s included: AutrefoisElf Smart Ring, charging cable, charging case, instruction manual, and quick guide. Backed by a 1-year warranty.
