Take the Samsung Galaxy S2. Swap its processor to include 4G, change its design to something contemporary (think Galaxy S3) and boosts its onboard storage and you get the Samsung Galaxy Express, otherwise known as the i8730.
This smartphone was released earlier this year and is Samsung's mainstream 4G handset, one which Mobicity is selling for £277, which is cheaper than the competition but way more expensive than a comparable 3G handset.
And what you get is essentially a glorified Samsung Galaxy Ace 2. There's a 4.5in 800 x 480 Super AMOLED Plus display, a dual-core system-on-chip clocked at 1.2GHz, 1GB of RAM, Android 4.1.2 Jelly Bean, 8GB of RAM, a card slot, NFC, a 5-megapixel camera, a front-facing camera, Bluetooth 4.0 and a 2,000mAh battery.
The device is 9.3mm thick and weighs 137 which is average for a smartphone with those specs. Since the beginning of the year, Samsung engineers seem to have worked overtime to deliver an array of smartphones.