OnePlus One

“There's a sea change underway in the mobile world, and consumers are going to be the big winners here. Carriers like T-Mobile are moving towards unsubsidized and contract-free models, while companies like Google, Motorola, and now OnePlus are redefining expectations for affordable smartphones. The OnePlus One is hopefully a harbinger of things to come, a no-compromise device that challenges the current hegemony of subsidized smartphones and contract-bound service plans. If the untested company can maintain quality control and meet demand, the One will be the smartphone to beat. It might be too big for some, though, and there's still a case to be made for stock Android straight from Google—if you fall in this camp, the Google Nexus 5 is still a stellar option. Otherwise, the OnePlus One is the most phone for the least money.”

“The OnePlus One won’t change your life or shatter your expectations of what an Android phone can do, and thanks to its size and heavily customizable interface, it’s not ideal for everyone. Plus, the price comes with a weird “invite-only” asterisk, and its software/OS future will depend wholly on Cyanogenmod’s ability to keep up with Android’s official releases.”

“Devices that excel at everything usually fetch a hefty price but occasionally users will have a tougher riddle to solve. The OnePlus One is a great device with an even better price tag. You probably want it but can't get it. Bummer. This flagship killer's biggest problem is there may not be flagships left to kill by the time it's done handing out the invites.Yet, the One is your kind of phone if you like surprises - and believe in delaying pleasure. It's the phone for Android purists and modders, running the highly customizable CyanogenMod with over the air updates.If that's Android how you like it and phablet size isn't a deal-breaker, the One also comes with flagship-grade hardware at the price of a mini, at most. For $350/€350 you get Snapdragon 801, 3GB of RAM, 4K video recording, a FullHD 1080p display and a whopping 64 gigs of storage - that's a respectable list by any standard.Beyond the mechanical sum of specs, the OnePlus One truly handles well - the UI is buttery smooth, expected from a blend of pure Android and CyanogenMod, the screen is nice and sharp, the battery does well, the camera is excellent, the speakers are extra loud and the hardware costs more than they charge.”

“OnePlus delivers a really good smartphone with its One that calls itself Flagship Killer - and that not quite wrongly. Although the processor loses some of its power during permanent load, the smartphone is swift and other, considerably pricier contenders also struggle with these heat issues.Besides that, OnePlus' One is pleasant to hold, sports great communication modules, and can even be used perfectly for telephony. The minor drawbacks are found in details, such as the lack of a storage expansion that we primarily miss in the 16 GB model. The camera shoots decent pictures in daylight, but the low-light qualities are unsatisfactory. The high surface temperatures also thwart a better rating.We give a plus point for the outstanding performance-price ratio, which still remains unmatched. There is currently no smartphone with a better configuration for less than 300 Euros, when the user is a fan of CyanogenMod.”