Today is the day people can purchase the iPad Air in-store and online. Customers who purchase the shiny new device on Friday will have it delivered to their doorstep on Monday.

Apple iPad Air

Sales for the iPad Air started today

Sales for the iPad Air started today in 42 countries including the United States, Australia, Singapore, and Canada. The release date for the iPad Mini with Retina Display is still unknown.

The iPad Air features an ultra light design, A7 chip, M7 coprocessor, advanced wireless, Retina Display, 10-hour battery life, and more. It will likely be an in-demand gadget this upcoming holiday season. The iPad also comes in four capacity choices: 16GB, 32GB, 64GB, and 128GB. The tablets come in either space gray or silver.

The four big carriers in the United States offer both Wi-Fi and Wi-Fi plus cellular versions. Retail stores such as Target Corporation (NYSE:TGT) and Wal-Mart Stores, Inc. (NYSE:WMT) are selling the new iPad Air for a slightly lower discount. The former is offering the 16GB version for $20 off regular retail price. Wal-Mart Stores, Inc. (NYSE:WMT) is offering the same deal.

The iPad Air and iPad Mini are both great tablets

Scott Stein for CNET recently offered his take on iPad Air vs. iPad Mini. He reminds us that both tablets have a lot of the same specifications including Retina Display, 5MP rear cameras, and they come in the same colors. The main difference between the devices is weight – the iPad Air weighs a pound and the iPad Mini 2 weighs less than a pound. The screen sizes and prices are also different. Stein offered more detail on the matter, “Those are, really, the only hardware differences that we can see. The iPad Mini should perform the same, although we haven’t tested one at CNET (Apple says the Retina Mini will be available in late November): there’s always a chance that the Mini doesn’t have quite as good a battery life as the Air, which topped 12 hours on our tests. But assuming it matches Apple Inc. (NASDAQ:AAPL)’s claims, you’re really saving $100 by getting a physically smaller display with higher pixel density.”

The iPad Air and iPad Mini are both great tablets. The best tablet all depends on personal preference.