Best smart rings 2025 — Stylish, accurate and comfortable to wear ...The LivUp smart ring is a good option for users who prioritize comprehensive health tracking, including sleep and vitals, in a discreet, screen-free design with a 2-5 day battery life and no subscription fees. It excels at sleep and basic activity tracking but is less ideal for users needing detailed, real-time heart rate monitoring during high-intensity workouts or those who want a device that is highly durable and resistant to physical stress.
$35 obo