Casio debuts full-metal smart ring for health tracking
Casio unveils its first smart ring, the CRW-H001, a full-metal wearable that combines digital timekeeping with health tracking (steps, calories, heart rate, SpO2, body temperature, sleep, recovery) and discreet smartphone notifications via vibration. Built with metal injection molding for a one-piece ring, it pairs with a Casio app on iOS, Android, and select HarmonyOS devices; available in sizes 9–11 and sold exclusively in China with limited after-sales service, signaling Casio’s shift from novelty ring watches to practical wearables.
