Best Android Jelly Bean Cell Phones - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 Network Type, Quad Core Processor

'Bad. Sluggish performance.'

'Opening the rear cover is a painful exercise.'

'We put the Lenovo Vibe Z2 Pro through our traditional loudspeaker test and it scored an Average mark which means you'll have to keep the phone near you if you don't want to miss any calls. '

'The screen is also unfortunately dim and dull.'

'The camera has problems in focussing on subjects and is slow as well.'

'There are tons of lower-priced smartphones that perform better.'

'720p videos are jerky and don't have very good detail.'