iPad Mini 4 WiFi + 4G 2015 (A1550)
The iPad mini 4 models -- casually described by Apple as a little iPad Air 2 -- pack similar, but not identical, internals in a smaller case. Mdel Number A1550
Both iPad mini 4 models, this Cellular-equipped model and its Wi-Fi only brother, feature a 7.9" 2048x1536 (326 ppi) LED-backlit IPS touch-sensitive display with an antireflective coating, a dual core 1.5 GHz Apple A8 processor, 2 GB of RAM, and 16 GB, 64 GB, or 128 GB of flash memory storage.