The HTC Desire 626 was released back in early 2015 with 5" 720p display, a quad-core Cortex-A53 processor, 16GB storage, and a 13MP main camera. Its Android OS in charge was KitKat. The 626 legacy spawned into two different models - the Desire 626s and 626G+. The 626G+ model is pretty much the same as the original one, but downgrades the CPU to 32-bit Cortex-A7 and halves the memory. The 626s on the other hand also downgrades the CPU and halves the storage, but it also reduces the camera resolution - 8MP on the back and just 2MP for selfies. The Desire 626s was launched last summer with...
Source: http://www.gsmarena.com/android_60_marshmallow_now_seeding_on_sprints_htc_desire_626s-news-18673.php