10 year old wants X box

Yes. It does not come with a disk tray so you will have to download everything he wants to play. Xbox Series X is on sale and will run a bit better for most games. Check the price difference. If it’s only $50 more get the Series X. It used to be $100 more originally.

Make sure you get the new black series S with 1 tb storage, the white one only has 500gb and that is like 4-6 games downloaded. Also expandable memory cards are really expensive, $75 per TB

I have an external storage with 2tb- would that solve?

Yes and no. Xbox Series S and X rely on their SSDs to transfer data extremely fast compared to traditional HDDs. Seagate has one external SSD built specifically to Xbox specs to optimize gameplay.

Faster data transfer = fast game play = shorter loading times. HDD are cheaper but transfer data slower. Inverse is true that SSDs are more expensive but will move data faster.

If your child plays single player games, keep them on the external HDD if that’s what you have.

I would suggest ponying up for the Xbox Series X. You can delete old games then redownload if you have to. You can also buy physical game copies if that matters.