As you’ve probably heard by now, Apple announced last week that their latest phone – the iPhone 5 – will be available this Friday. The new phone features a few nice upgrades, but the most visible change by far is that the phone is now taller; the screen has jumped from 3.5″ when you measure from one corner to the other to 4″. It may seem like a small change, but it can make a big difference to the people who use the phone.

When you think about how your company’s site looks on mobile devices, are you limiting yourself to how it looks on your phone, or are you thinking about how it will look on everyone’s phone? Different mobile phones have different sizes, dimensions, and proportions. If your site is built for a specific size, your site may not look its best on other types of mobile devices.

Whether you decide to build a mobile web app, a responsive layout, or simply an optimized site to account for smaller devices when someone visits your site, keep in mind that there are many shapes and sizes for the phones and tablets people use every day. Make sure your designers account for them when they show you their ideas.