This product uses low-power Bluetooth 5.0, the weight data transmission speed is faster and more stable, cherish your every second. High-precision sensor: This product uses a high-precision manganese steel sensor to accurately sense the change from subtle to 50g. Every cup of water you eat and drink can be easily quantified, and three units of measurement are provided. Choose to effectively help you fine-tune your weight data. Ideal weight measurement function: This product is equipped with an ideal weight measurement function, according to height, age, BMI, and other data, intelligently calculate the weight that suits you, so that you do not have to blindly lose weight and excessive weight loss for the beauty of appearance.