Yes, both the Samsung A34 5G and Samsung A54 5G come with an SD card space which means you can use external or expandable memory on these smartphones.
The Galaxy A54 5G and A34 5G supports up to 1TB of external memory which is huge as you will have more space to store different documents such as photos, videos, and games.
However, it is a hybrid slot which also means a shared slot. You will have to decide which of the two available options works for you. The options are 2 Nano sim cards and no SD card or 1 sim card and an SD card.
Samsung A54 5G and A34 5G are available in 128GB and 256GB internal storage options both of which can be paired with 6GB or 8GB RAM.
If you are the type that can’t trade having two sim cards in your phone or the type that understands SD cards are slower than internal storage and don’t want that, you should go for the 256GB internal storage options of these smartphones.