- Display screen: 1.43-inch AMOLED; Resolution: 466 * 466; IP67 waterproof rating-2. CPU: Zhongke 5691; Memory: 128MB-3. Bluetooth 5.3; Support calling; APP Name: FitCloudPro-4. Battery capacity: 300mAh; Battery life: 3-5 days-5. Supports real heart rate and blood oxygen, heart rate detection, sleep monitoring, and other functions-6. Language package of 21 countries: Chinese, English, Russian, Arabic, Vietnamese, Denmark, Thai, Polish, Persia, Spanish, Malay, Greek, French, Italy, German, Portuguese, Türkiye, Romania, Hebrew, Burmese, Ukrainian