Asus Zenfone 2 ZE551ML (4GB RAM 32GB ROM 1.8 GHz)

The Asus Zenfone 2 (ZE551ML) is flaghsip phone by the Taiwanese electronics firm that comes with two SIM card slots, Android 5.0 Lollipop, a 5.5-inch FHD display, 13-megapixel rear camera and 4GB of RAM.

It features a 5.5-inch IPS LCD capacitive touchscreen with a resolution of 1080x1920 pixels. The display has wide viewing angles, punchy colours, and is extremely sharp with a pixel density of 401 ppi. Thanks to a minimum amount of bezel, the phone's 5.5-inch display is almost as easy to handle as a device with a 5-inch display.

The device runs Android 5.0 Lollipop out of the box and is powered by a 64-bit 1.8GHz quad-core processor paired with 4GB RAM, which should offer great performance and multitasking capabilities. It comes with an internal storage of up to 32GB that can be used for installing apps and storing media, with the option to add more storage via the microSD slot that supports cards of up to 64GB.

The Zenfone 2 features a 13-megapixel PixelMaster back camera with an f/2.0 aparture, which comes with Real Tone flash for natural images when the LED flash is used. Users can take selfies using the 5-megapixel front-facing camera, with a slew of shooting modes available in the camera app.

The device supports connectivity options such as 4G LTE, 3G, Wi-Fi 802.11 a/b/g/n/ac, Bluetooth 4.0 and microUSB 2.0 port. The smartphone is backed by a Li-Po 3,000 mAh battery that can be charged extremely quickly thanks to ASUS' BoostMaster technology, which charges the phone to 60 percent in only 39 minutes.