ULTRAHUMAN AIR-Smart Ring Health Tracker, Sleep & Fitness Tracker, Smart Ring for Men/Women, Size First Sizing Kit

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About This BUY THE SIZING KIT FIRST: Ultrahuman Ring sizes differ from standard ring sizes. Purchase the Ultrahuman Sizing Kit first, which includes a ring sizer, to accurately det ermine your size. The Ring AIR is available in 10 sizes (5-14), ensuring a comfortable, secure fit. Using the sizing kit helps you avoid returns and exchanges, ensuring you select the right size before purchasing. Overview Operating System : Ultrahuman App Memory Storage Capacity : 0.5 MB Special Feature : Activity Tracker Battery Capacity : 24 Milliamp Hours Connectivity Technology : Bluetooth Wireless Communication Standard : Bluetooth Battery Cell Composition : Lithium Polymer GPS : No GPS Shape : Ring Brand : ULTRAHUMAN Show more