Do you enter the room or swipe your room card in a star hotel?

Most five-star hotels have room cards. It is not particularly different from the three-star four-star hotel where we usually stay. It is also through the room card to enter the hotel room, and you need to insert the card to get electricity. However, some luxury five-star hotels enter the room through Bluetooth or fingerprint identification. Of course, the number of such hotels is relatively small at present, and it is generally the newly-built hotels that adopt this way.