The Nintendo DSi is compatible with all SD and SDHC (High Capacity) cards. The High capacity cards are available upto 32Gb but at around £70 they are far beyond what you need for a DSi.

Y0u can however get cards upto 8Gb at very reasonable prices.

As ever we have taken the legwork out of it for you by searching high and low for the best deals on SD memory cards for your DSi.