The most recent iPad models have the best cameras, touch screens, and processing capabilities, so it is recommended to purchase a new iPad for your NoahFace installation.
Apple offers multiple iPad models. We recommend:
Unless you have extreme requirements (ie: 1000s of events captured per day per iPad), select the lowest storage capacity for your chosen iPad model.
Most NoahFace installations are connected to the network using Wifi, so generally you do not need an iPad model with cellular connectivity. However, if you do not have a reliable Wifi network, cellular connectivity is supported.