iPad Mini 2 (Retina) WiFi + 4G 2013 (A1490)
The iPad mini 2 models -- originally the "iPad mini with Retina Display" models or iPad mini 2nd Gen models (and formally renamed iPad mini 2 on October 16, 2014) -- use practically identical housings as the original iPad mini, but have a much higher resolution "Retina" display, as well as a faster processor, faster Wi-Fi, and expanded LTE connectivity (on LTE capable models).
All iPad mini (2nd Gen) devices -- including this Wi-Fi and cellular capable model (A1490