OnePlus One

Manufacturer description: The One it the first high-end device by the Chinese startup OnePlus. With its 2.5 GHz quad-core Qualcomm Snapdragon 801 SoC, 5.5-inch 1080p screen and 3GB of RAM, the One's specifications are on a similar level as other current flagship devices but the One is offered at a significantly lower price. With a 13MP Sony sensor, F2.0 aperture, 4K video and 120 fps slow motion at 720p, the camera specs are very solid, too.

In terms of operating system, the One comes with CyanogenMod 11S, an Android 4.4-based version of the community-based CyanogenMod ROM which is more customizable than the Android versions that most manufacturers pre-install on their devices.