The Lumia 640 is a decent attempt from Microsoft in the budget segment. It tries to put up a fight against the budget segment Android smartphones but loses out mostly because it can’t offer the same performance as lower priced Android phones like the Yu Yureka and the Xiaomi Redmi 2.
Microsoft’s upcoming Windows 10 update could save the day when it comes out in due time and with the right features but till then, the Lumia 640 is only meant for Windows Phone lovers or first time smartphone buyers.