The first thing you'll notice when unboxing the iPhone 12 and iPhone 12 Pro is their new look. Both models feature smooth, flat edges that make them almost feel like a cross between last year's iPhone 11 and the iPhone 5 from 2013. On the iPhone 12, these edges are made from aluminum, while the iPhone 12 Pro has surgical-grade stainless steel edges. In addition to giving the iPhone 12 lineup a new look, the bigger edges also make it easier to securely grip the new phones compared to the rounded edges on the iPhone 11 and iPhone XS families. Despite having thicker and more pronounced edges, Apple's iPhone 12 is actually lighter than its predecessor. The new model weighs 5.78 ounces, while the iPhone 11 weighs 6.84 ounces. The iPhone 12 Pro, on the other hand, is just slightly heavier than the 6.63 ounce iPhone 11 Pro at 6.66 ounces.This is more than just a difference on paper; the discrepancy is actually palpable when holding the two devices, making the iPhone 12 easier to use and hold in one hand compared to last year's model. Apple is nixing its EarPod wired headphones and charging adapter from the iPhone's packaging for the first time, resulting in a much more compact box. Take a look at the box for the iPhone 12 above alongside the packaging for the iPhone 11, and you'll notice its much slimmer.Apple introduced its edge-to-edge screen design back in 2017 with the iPhone X, and the iPhone 12 family may represent the biggest improvement on this design yet.The iPhone 12 Pro now has a more expansive 6.1-inch display compared to the iPhone 11 Pro's 5.8-inch screen since Apple was able to reduce the display's surrounding borders. Even though the iPhone 12 technically has the same-sized screen as the iPhone 11, its notch cutout for the selfie camera as well as the thin black border surrounding its display are also much slimmer.This gives the iPhone 12 a more premium look, making it feel more like a high-end device than last year's iPhone 11, which seemed like a follow-up to the budget friendly iPhone XR. The iPhone 12 also got a major upgrade when it comes to its display. It has Apple's Super Retina XDR OLED display just like its pricier Pro sibling, and unlike the iPhone 11 which has an LCD display.OLED screens typically offer better contrast, bolder colors, and deeper black tones than LCD screens. Even just after spending a brief period with the iPhone 12, I've begun to notice this change in certain apps, particularly on apps and websites with dark backgrounds.When reading a story in Apple news that consisted of white text against a black backdrop, for example, I noticed the white text looked slightly bolder and more crisp on the iPhone 12 compared to the iPhone 11.Apple's Night Mode feature is getting a big update this year. Both the iPhone 12 and iPhone 12 Pro have an improved aperture that makes it possible to take in more light. The Pro model gets a bonus with a LiDAR sensor that can help it autofocus even more quickly in the dark.You'll notice that the photo taken with the iPhone 12 Pro is a bit brighter than that taken on the iPhone 11 Pro.The new designs are their most striking change, but the iPhone 12 and 12 Pro otherwise come with a bunch of small improvements that that make them an overall step up from their predecessors. The addition of 5G support likely won't matter much for now, but it'll ensure that your phone won't feel obsolete once 5G does become the norm.