Ringconn sports ring, second edition Ringconn 2 Black color Size 12 (To know if size 12 is suitable for your hand, you can try the size of Honor and Samsung rings at Jarir Bookstore) The ring is excellent, and its most prominent features are: Advanced Health Tracking: Automatic sleep monitoring (including naps), continuous heart rate tracking, blood oxygen levels, and stress levels. Sleep Apnea Diagnosis: It is the first ring to detect Obstructive Sleep Apnea (OSA) using Artificial Intelligence (AI) technology. Battery and Power: Battery life up to 12 days on a single charge, with a portable charging case available. Design and Materials: Made of strong titanium, very lightweight, and 2mm thick, making it comfortable for all-day use. Water Resistance: IP68 standard and water-resistant up to 100 meters (10 ATM). App and Subscription: No monthly subscription fees for the supported smartphone app (Android & iOS). Everything is explained in the pictures, and the ring has over 5000 reviews on Amazon... The ring was purchased for (1117) SAR from the Amazon app... Selling for 700. The ring is new from the company and arrived just two days ago... 700 SAR