It's quite bright too and has decent colours.
Text and images aren't quite as sharp, but it's perfectly adequate for tweeting and Facebook stalking. The 4.5-inch screen has an 854x480-pixel resolution, which is less than you'd find on the Moto G. It has 8GB of storage as standard, but there's a microSD card slot for you to keep your music, photos and videos on. The plastic is sturdy and easily capable of taking a few knocks and bumps, while the toughened Gorilla Glass 3 will prevent the glass front from getting too many scratches from keys in your pocket. The covers are removable, allowing you to swap them out when you fancy a change or to just replace a knackered old case.
As well as bright green, you can get the 635 in luminous yellow, orange or black if you're boring. The colour comes from the back panels, which curve around the body to meet the display, rather like the iPhone 5C. Like all of Nokia's Lumia phones, the 635 has a plastic, colourful body.