The Lava Iris Fuel 20 - like other members of the Iris Fuel series of smartphones - sports a large battery - 4400mAh battery in this case, which is perhaps the largest battery in a sub-Rs. 6,000 smartphone. Other Iris Fuel range handsets include the Lava Iris Fuel 50 and Lava Iris Fuel 60. <br /> <br />To compare, the Iris Fuel 20's 4400mAh battery is larger than some of the popular smartphones in its category, such as Xiaomi's Redmi 1S (2000mAh), Moto E (1980mAh), Lenovo A6000 (2300mAh) and the Asus Zenfone 5 A501CG (2110mAh). The domestic handset maker says "this is the second biggest smartphone battery available in the country today." The Gionee Marathon M3 comes with a 5000mAh battery. <br /> <br />However, the Iris Fuel 20 supports just 2G connectivity that might be the biggest let-down of the handset. Recently, the Indian smartphone market has seen some 4G-enabled smartphones being launched in the budget price range. <br /> <br />The dual-SIM based Iris Fuel 20 runs Android 4.4 KitKat out-of-the-box. It comes with a 5-inch (480x854 pixels) FWVGA display. The smartphone is powered by a 1.3GHz dual-core (unspecified chipset) processor coupled with 512MB of RAM. <br /> <br />It comes with 4GB of inbuilt storage, which is further expandable via microSD card (up to 32GB). It sports a 5-megapixel rear camera with LED flash, while there is a secondary 0.3-megapixel front-facing camera also on board.
