Discover next-level convenience with the Volkano Ring Series Smart Ring - 20?mm, a sleek, finger?worn smart ring tracker that monitors your health and activity without the bulk of a smartwatch. Whether you're moving through your day or hitting the gym, this intelligent wearable tracks your heart rate, blood pressure, blood oxygen, steps and calories - all in one compact ring.With built?in multi?sport monitoring, you can measure performance across a variety of workouts, while the magnetic charge case with a 120?mAh power bank ensures your smart ring stays powered up wherever life takes you. Designed for those who want health insights in a clean, discreet form, the Volkano Smart Ring gives you total tracking, with zero distractions.