Lava Z90 has a 5.2 inch IPS LCD panel along with the resolution of 720×1080 and the aspect ratio of 282 PPI which is lesser than the clarity of other phones in the price range of 8,999/- like the Redmi 6A or Asus Zenfone Max Pro M1. It also has a set of three cameras (8MP+2MP) in the rear and 8MP camera in the front enabled with LED Flash. Thanks to the Corning Gorilla Glass, the screen is much more prone to damages or breaks, unlike its contemporaries. Z90 is powered by a powerful quad-core MediaTek processor at 1.3GHz with 3GB of RAM and has Android 7.0 Nougat. It also hosts internal storage of 32GB that can be expanded to 128GB with microSD card. It has a 2,750mAh Li-ion battery with decent longevity.
Unlike the Z60, the Z90 offers fingerprint reader, which is noticeably faster and accurate than others in the same price range. This makes things a lot easier for users to work. It has a charming look with a smooth finish in Gold and Black colours, but due to the lack of quick charging feature, it can be quickly ruled out for an excellent on-the-go phone. The device is 148.5 x 73.1 x 8.1 mm in size and weighs approximately 159g and therefore can get a bit heavier to hold.