As most views come from smartphones now, I want to post images that will look good on a phone – so portrait. I didn’t want to spend much time on this, the best I can quickly come up with is to just use the recommended Android size:
1080 x 1920 pixels
The reasoning behind this is :
- For Android it’s 1080 x 1920 (9:16) . iPhones all seem to have awkwardly different sizes, none of which fit into a neat ratio. Most countries are majority Android users (US/Canada/Australia are majority iOS).
- The maximum size for a tumblr picture is 1280 x 1920 pixels (2:3). So the Android size is within that.
- Most smartphones now don’t take pictures below 2MB (so a width of 2000+ pixels). Any tumblr images you make will be smaller than this, just interesting to note.