optional, 07 Dec 2015only 2000mah!! I suspect for the price that would be enough... but even then my phone has the same capacity and I get 4+ hours on screen time in a 20+ hour span. back to back I get 7 hours on screen time, I don't know but it seems these low end phone are really good nowadays.
tere are so may devices in markt with 1Gb ram and lollipop version of Android that it will become difficult for this device to survive - the first competitor is moto E 2nd gen.
In Romania this is under Alview brand and is around 170 USD.