The positioning of the two brands is different, Siemens highlights the scientific and technological content, and zero-degree biological preservation is the characteristic; The advantage of doctors is humanization, and they have more advantages in appearance and manipulation.
My home appliances, refrigerator and washing machine are all Siemens'. However, both products are trustworthy.
The two products you value are products with good reputation and good quality in the market. You can choose what you like better according to your subjective feelings.
I hope my answer can help you.