The Nokia E7, LG Optimus 2X and the Apple iPhone 4 are one of the best and most current representatives of rather different mobile operating systems – Symbian, Android and iOS. It's a long shot to compare the three as they are so different, but it gives us a bird's eye view of how the mobile industry has changed in the last few years.
The Nokia E7 has the worst timing of the three, appearing right after Nokia announced its decision to slowly phase out Symbian, and replace it with Windows Phone. Still, it is an extremely well-crafted device, and its anodized aluminum chassis feels very solid in the hand, all the while it manages to keep a fairly slim profile, considering it carries an excellent chiclet-style physical keyboard.
The LG Optimus 2X is basically a big slab, but the curved battery cover edges, and the soft touch plastic on the back make it comfortable to hold. The iPhone 4, on the other hand, has exceptional looks too, but it achieves it with a steel and glass frame, while still having one of the thinnest profiles out there.
The displays utilized are also very different. First we have the 4” ClearBlack AMOLED on the Nokia E7, which offers the widest viewing angles, high contrast, and nice, saturated colors, plus it has a polarizing filter on top to aid in sunlight visibility, since it is not as bright as the LCD screens on Apple's and LG's handsets. Its main downside – the low 360x640 resolution.
The iPhone 4's so-called Retina Display is much smaller than the one on the E7 at 3.5”, but it has the highest mobile display resolution out there – 640x960 – and is one of the brightest too. And, finally, the display on the LG Optimus 2X is a solid 4” IPS-LCD with 480x800 pixels, making it a good choice if you'd rather have a bigger screen with standard resolution than the smaller one on the iPhone 4.
Looking around the sides we immediately notice that the phones have different sets of functionalities. At first look the Nokia E7 is the most versatile of the three. It has an 8MP camera with dual-LED flash, HDMI-out port and USB-on-the-go for hooking up a USB stick directly to your phone.
The LG Optimus 2X, however, also has an 8MP camera with LED flash and HDMI-out port for hooking up your phone to a big screen TV. It doesn't have USB-on-the-go, but thanks to its dual-core chipset its camera records Full HD 1080p video, plus it has a microSD card slot for storage expansion.
Backs
Of course, both the LG and Apple's phones don't have the comfortable physical keyboard the Nokia E7 has. The iPhone 4 actually looks the least functional in terms of ports, as it has neither HDMI, nor microSD, not even a microUSB port, and a 5MP camera with flash. Camera resolution, however, doesn't mean much for the actual picture quality, and Apple released an HDMI cable that goes into the proprietary port of Apple's finest, so this evens things out to an extent.
Hardware and design is not all there is to it, so let's examine the interfaces quickly.
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