This is a great smart ring for tracking your basic health, including heart rate sleeping steps in general well-being. I only wore it for about 2 1/2 months before upgrading to a newer model. There are some scratches from normal wear, but none of that affects the smart guts inside of it And of course, having only worn it for a couple of months the battery life is still good. The reason I went with RingConn instead of Oura ring or one of the other brands is that the app doesn’t charge you a monthly fee like most of the others. Comes with the charging case. Vital Signs & Wellness Balance Monitor heart rate, blood oxygen, and other vital signs 24/7, as well as sleep, activity, and stress. Durability Guarantee RingConn's titanium construction is Lightweight at 3-5g, offers superior strength, corrosion resistance, and biocompatibility. Product Specs Materials Durable titanium & PVD coating Weight & Dimensions Width: 7.8mm Thickness: 2.6mm Weight: 3 to 5 grams (depending on ring size) Sensor Photoplethysmography (PPG) Sensor × 4 Temperature Sensor × 4 3D Accelerometer Battery & Power Ring Battery Life: Up to 7 days on a single charge. Portable Charging Case: 500mAh capacity for 18 full recharges. Full charge in 90 minutes with Ring's fast charging capability. Connectivity Bluetooth 5.2 (Low power bluetooth module) EMF-Safe and Allows Airplane Mode Compatible With Apple Google Fit Waterproof IP68