Average saving in this category: 56.6% (avg difference: 55.96)
Based on 1583 products

Smart Ring for Women Men, Fitness Ring with Heart Rate, Blood Oxygen,Stress, Sleep Tracker, Step Tracker, Fit Ring No Subscription Fee, IP68 Waterproof Smart Ring for iPhone & Android (Gold, 8#) Gold 8#

Quick facts

  • Brand: REWSX
  • Price: USD 58.98
  • Rating: 4.60 (31 reviews)

If you want fitness and sleep insights without wearing a watch, the REWSX Smart Ring is a low-profile alternative. This modern, round smart ring (Gold, US size 8) tracks heart rate, blood oxygen, stress, sleep, and daily steps, with data viewable in the companion app.

It’s designed for everyday wear with IP68 waterproof protection and broad compatibility (Android 4.4 / iOS 8.4 or later). The ring charges in about 2 hours and is rated for up to 3–5 days of battery life per charge. For travel or busy weeks, the included 400 mAh charging case can recharge the ring about 15 times—helping extend total use time up to 60 days between case charges.

For sizing, REWSX recommends using a sizing kit to find the most comfortable fit, or selecting your standard US ring size.

  • No subscription fees: lifetime access to the app for tracking and insights
  • 24/7 heart rate and blood oxygen monitoring with historical views in the app
  • Automatic sleep tracking with deep/light sleep breakdown and trends
  • Activity tracking for steps, distance, and calories burned
  • Multiple sport modes (e.g., running, cycling, walking, yoga, golf) with workout details in the app
  • IP68 waterproof design plus a charging case for extended time away from outlets

What’s in the box: smart ring, 400 mAh charging case, magnetic USB charging cable, USB-C cable (for the case), and instruction manual.

Note: GPS is via your smartphone (not built into the ring).