Rugged Smartphone Unlocked, Ulefone Armor X IP Waterproof Cell Phone, . inch HD Screen GB GB Android . mAh Battery Global G Dual SIM Dual Cameras Face ID Compass GPS Shockproof Red .The development of the smartphone was enabled by several key technological advances. The exponential scaling and miniaturization of MOSFETs MOS transistors down to sub micron levels during the s s as predicted by Moore’s law made it possible to build portable smart devices such as smartphones, as well as enabling the transistion fromog to faster digital wireless mobile .Rugged Smartphone Unlocked, Ulefone Armor X IP Waterproof Cell Phone, . inch HD Screen GB GB Android . mAh Battery Global G Dual SIM Dual Cameras Face ID Compass GPS Shockproof Red . We’re a smartphone dominated nation, with G LTE networks beating many home internet connections in terms of speed, and G just beginning to launch in select cities.. In a nutshell, a smartphone is a device that lets you make telephone calls, but also adds in features that, in the past, you would have found only on a personal digital assistant or a computer such as the ability to send and receive email and edit documents. So, it’s essentially connected to the internet and offers personalized services as a result..Here are the best smartphones that we’ve tested, with the top Android phones and iPhones, and our favorites for budget shoppers..Best Smartphones List of all the latest and new smartphones available from various mobile companies and brands..