Oura | | Refurbished Excellent | Ring 4 | Smart Ring | Size Before You Buy with OR4 Sizing Kit | Size 8 | | 2024) | Silver | Best Buy
Oura Ring 4 brings you closer to what matters most — your health. With an updated all-titanium design, this smart ring features Smart Sensing, a new sensing platform that doesn’t just measure your biometrics but also adapts to you. It provides insights into over 50 biometrics including sleep, re
$249.99
Ultrahuman | | Refurbished Excellent | Ring AIR | Smart Ring | Size Before You Buy | Size 8 | | 2023) | Bionic Gold | Best Buy
Actionable health tracking smart ring. A comfortable and sleek smart ring that tracks your sleep, movement and recovery trends, nudging you to make healthier choices every day. The Ring lasts up to 6 days on a complete charge.* | Ultrahuman | | Refurbished Excellent | Ring AIR | Smart Ring | Size Be
$229.99
