Asus ZenFone 2 ZE550ML is powered by Intel Atom Z3560 processor 1.8GHz quad-core with 2GB of RAM.16GB of internal storage and can be expanded up to 64GB via a microSD card.
Design
Bottom screen using a metal bezel which has the effect of rotating glow. The panel that surrounds the screen using glossy black plastic that gives the firm impression. Capacitive Home button, Back and Recent Apps placed just below the screen. its actually slightly more curved than last years ZenFone.Fits comfortably into the palm of your hand, letting you keep a firm grip on it.
Display
ZenFone 2 ZE550ML has a 5.5-inch Full HD(1920 x 1080 pixels) resolution IPS LCD display, with screen density of 403ppi. The screen is protected with Corning Gorilla Glass 3. Clarity is fairly good and color reproduction is accurate, although contrast could probably be a bit better. Viewing angles are excellent.
Sound
ZenFone 2 comes with a single speaker unit located on the back of the device. Sound output is average, and the rear-facing setup is less than ideal for any movie watching.
Hardware
Asus Zenfone 2 ZE550ML has 16 GB internal memory, which can only be used by users of 11.5 GB for installing applications and data.Battery capacity embedded in this ZenFone is 3000 mAh. When used in daily activities with 3G connectivity, the battery can last up to 12 hours of active use in social media, and listening to music.