WaterH Smart Bottle, "smart + safe". It is composed of double-layer stainless steel, and the built-in sensor will track your daily water intake, and connect to the APP via Bluetooth to remind and motivate you to drink water. If you don’t drink enough water at a certain time on a certain day, the body of the bottle will also light up to remind you to drink; at the same time, it is equipped with a TDS smart sensor, which can measure the quality of the water in the bottle and upload records and gen