It's safe to say that a lot of websites and apps these days are heavily reliant on images: product images, avatars, social sharing. With continued technological advances, the variety of device sizes you need to support keeps growing. How exactly are we to make the same page look great and feel performant on both a 16'' MacBook Pro with a retina display as well as a small 5 year old Android phone? We will look at some of the modern approaches to tackle just this problem on web and native - as well as what happens if you don't.