● Color: Silver ● Bluetooth Version: Bluetooth 5.4 ● Waterproof Level: IP68 ● Size: Size 9 Recommended Points: ● 【Health Management at Your Fingertips】 You can now manage your health simply by wearing it on your finger. We've focused on size, weight, and fit to make it a part of your fashion, allowing for smarter health management. ● 【Sleep Data】 The evofit smart ring has a built-in high-performance sleep tracker. You can check details such as sleep time, deep sleep, light sleep, and REM sleep to understand your sleep patterns. ● 【The Ultimate Fitness Partner】 Through the application, you can select exercise modes such as walking, jogging, cycling, golf, and mountain climbing. Simply wearing the ring allows you to easily track steps, distance, calories, and pace. ● 【Durability and IP68 Waterproof Standard】 The durable construction ensures long-term use. It has an IP68 waterproof rating. There's no need to take it off for daily hand washing, swimming, or sweat from sports, or other usage scenarios.