[Size Before You Buy] To ensure a 24 - hour seamless wearing experience, we highly recommend purchasing the POBOVi Sizing Kit. It only takes 5 minutes in total to get the most comfortable and perfectly - fitting POBOVi Smart Ring for your finger.

[No APP Subscription] Our smart ring redefines the very essence of smart wearables. With just a one - time purchase, you can enjoy a lifetime of free use. All core functions are fully accessible without any hidden obstacles. We eschew all kinds of tricks and false marketing ploys, solely dedicated to offering you a more unrestrained and enjoyable experience.

[Not Just for Health Monitoring] As one of the innovators in the wearable field, the POBOVI smart ring achieves a perfect integration of a miniature body and flagship - level performance. It can provide many health monitoring features, including stress, heart rate, blood oxygen, sleep body temperature and HRV (Heart Rate Variability), creating an all - day personal health steward and efficiency tool, and endowing true intelligence to your fingertips.

[Extreme waterproof performance] As a close - fitting wearable device, the waterproof ability of a smart ring is a core indicator determining its practicality and durability. We redefine the standards of smart wearables with the highest - level waterproof technology, enabling the POBOVi Smart Ring to operate stably in scenarios such as swimming pools, gyms, and outdoor adventures, truly integrating into every moment of your life.

[Long Battery Life & No Bumps Design] POBOVi smart ring offers up to 5-7 days of battery life, When paired with the wireless charging case, the battery life can reach up to 15-20 days. The smooth, integrated body, featuring a bump - free design, seamlessly combines functionality and aesthetics.

[What’s in the Box] POBOVi Smart Ring Gen-1*1, Wireless Charging Case*1, 1m/3.3ft USB-C Cable*1, Instruction Manual*1 and Quick Guide*1.