• 【Choose Size & Fully Charged Before Buy & Use】Choose the perfect fit from a range of sizes between ring US sizes 7 through 12, Before use, please ensure that the smart ring is fully charged in order to successfully link to the mobile phone APP, Because it has been in a state of loss of power in Amazon warehouses for dozens of days
• 【Comprehensive Health Monitoring】Fitness tracker ring not only monitors heart rate, blood oxygen saturation, but also records steps, distance, calorie consumption, and has a range of exercise modes.
• 【Long Battery Life】The 18mAh battery combined with an efficient battery management system can make this smart ring health tracker work for up to seven days, but it only takes two hours to fully charge
• 【5ATM waterproof & Remote Photo Control】In rainy days or swimming , Don't worry, Waterproof smart ring has 5ATM waterproof rating,After enabling the remote photo function on the app, just shake the finger wearing the ring to take photos remotely.
• 【All-Day Wearable Design】Ultra-light stainless steel ring is comfortable enough to wear all day and night with waterproof protection for swimming and rainy activities