The Open C is the best among the two, although it’s still a modest device when compared to today’s high-end smartphones.
As for the Open II, this is the successor to the ZTE Open that was released in 2013. Its features include a 3.5-inch display with 320 x 480 pixels, HSPA+, 2MP rear camera, dual-core Snapdragon 200 processor, 256MB of RAM, 2GB of internal memory, and a 1,150 mAh battery.
Both new ZTE handsets will be affordable - but certainly not as affordable as the $25 Firefox phone that Mozilla is working on.
ZTE says it expects to ship "over 1 million" Firefox OS smartphones by the end of 2014. The Chinese company also mentioned that it’s planning to release a 4.5-inch Firefox handset by 2015. Yesterday, Alcatel already unveiled two 4.5-inch Firefox phones: the Fire S and Fire E.