Depending on the games that you plan to play when the Nintendo Switch arrives, here are the spaces you will need to allotted if you plan to get the digital version of the game.
You will need about 13.4GB if you plan to get the digital version of the highly anticipated The Legend of Zelda: Breath of the Wild game. Mario Kart 8 Deluxe will be 7GB in size while games like I Am Setsuna will only take up 1.40GB. Game like Dragon Wuest Heroes will take up 32GB.
Nintendo listed the file size on their Nintendo Switch Japanese website to give their fans an idea of what to expect. The Nintendo Switch cosnole will come with 32GB of internal storage but it can be expanded using an SD Card.
Of course, if you are looking to get the physical version, these sizes will not matter at all.