The Canon PowerShot S120 requires an SD memory card and one needs to be purchased separately as a memory card is not supplied with the camera. There is a huge choice of brands to choose from and then each one has a range of different specification cards.
The main criteria to consider when choosing a card are reliability, capacity and speed, and typically each increase in specifications is accompanied by an increase in price. I’ve used the SanDisk brand of card before in cameras and tablets without issue so was happy to use them again.
When it comes to capacity and size in GB websites provide charts of typical quantities of pictures, music or video each capacity card is typically capable of storing. But I knew from past experience of using a 32gb cards in my last camera that although I never came close to filling it before I uploaded images & video for editing on my computer I did come close or even go beyond half way, so the next drop down – 16Gb could only be limiting for me.
The next consideration is speed which is measured in MB’s per second which I guess you could figure out if you know the average size of file you store and transfer but I don’t so apart from thinking the faster the better gave it little further serious consideration.
In the end I went with a SanDisk Memory card – the SanDisk Extreme PRO SDHC UHS-I 32GB Card with speeds of up to 95 MB/s
Check out this video of the card being unboxed and installed in the Canon PowerShot s120 camera –