Very good mobile I am using good build quality nice metal unibody design and briged metal finish feels good to hold slimmer than the k4 note bundled clear cover for protecting the phone good display solid brightness levels. Contrast ratio, sunlight legibility and viewing angles display has Corning gorilla glass 3 protection unlike the k4 note lenovo s vibe adds some useful features on top of android good speed/performance including with games multitasking is smooth too, thanks to the ample ram built in support for fast Fingerprint sensor Dolby atmos wolfson wm8281 audio codec and 1.5 speaker good battery good camera