Look and feel
Lenovo Vibe Z also known as the K910, arrives in a rather elaborate box. It's black on the outside with a neat matte finish, enclosed in a black sleeve with red accents and a cut-out logo.
Despite being such a large device, the power button is on top. The volume rocker is on the left edge, while the right is blank apart from a retractable SIM card tray. There's a standard headset port on top and Micro-USB port on the bottom.
The Vibe Z is fairly light and easy enough to hold, though some people will find it just a bit too large.
The majority of Lenovo's unique features come in the form of software tweaks on top of Android 4.3, and there are loads of them. The 16GB storage cap will limit how many app icons you have anyway. You can slide between screens easily, and long-tap on a blank space to pull up a screen that lets you quickly hop between screens and add widgets.
Lenovo's camera app provides loads of options including multiple metering modes, contrast saturation and sharpness, ISO and white balance adjustment, and a "super night mode". There's an HDR mode, panorama, picture-in-picture, burst, smile shot, macro mode, and self timer. If that's not enough, there are also 24 effects ranging from a tilt-shift lens effect to a pop-art filter.
Graphics results are very good, with 22.9fps in GFXbench and 16,233 points in 3DMark's Ice Storm Unlimited run. You can toggle a multi-window mode and a one-touch shortcuts panel, each of which lives as a translucent tab floating on either side of the screen. Lenovo bundles UC Browser, Navigate 6, Skype, Twitter, Facebook, Accuweather, CamScanner, CamCard, Kingsoft Office, and a small selection of games including Asphalt 7 and Real Football 14.