There's affordable, there's dirt cheap and then there's the Xiaomi Redmi lineup. The latest to come out of Xiaomi's bargain bin is the Redmi 4, or what's known in China as the Redmi 4X - just Xiaomi's naming scheme. The important thing is that it's running an international ROM right out of the box, complete with full support for Google services.
Source: http://www.gsmarena.com/xiaomi_redmi_4_4x-review-1628.php