Which smart health watch is better?

If you mainly monitor health, I recommend Jiaming Garmin255. This watch is cost-effective and has a built-in fourth-generation heart rate sensor, which makes the data more accurate. You can also observe and record the sleep HRV value for a long time. The higher the HRV value, the stronger the pressure resistance, and it also has a variety of built-in exercise modes, so that you can exercise well while monitoring your health. Baidu will know it at once!