The Galaxy A53 5G and Galaxy A33 5G appear in the Bluetooth SIG listing with model numbers SM-A536 and SM-A336 respectively. This confirms that the smartphones have a single sim and a dual sim variant. It also reveals that the phone has a Bluetooth v5.1 standard.
The Galaxy A33 5G and Galaxy A53 5G support pages have now been published on Samsung’s official website. The HTML5 test program, which was discovered to include the devices, also shows this. Android 12 is listed as the operating system version on the other hand, as expected. They will be equipped with a layer of One UI 4.0 over top of the Android operating system. There has been no announcement from Samsung regarding the Galaxy A53 5G and Galaxy A33 5G’s release. But, I believe we are still a few weeks or months away from an official announcement.

Samsung Galaxy A53 5G and Galaxy A33 5G bag Bluetooth SIG certification - 16Samsung Galaxy A53 5G and Galaxy A33 5G bag Bluetooth SIG certification - 26