What are all the differences between the original 12.9" iPad Pro models? What are the main differences between the 12.9" iPad Pro and iPad Air? Which should I buy?

The original iPad Pro, original iPad Air, and iPad Air 2 have been discontinued. However, this Q&A has been updated subsequently with the latest iOS compatibility details and more and can be quite helpful to anyone buying or selling one of these tablets on the used market.

It would be easy to take a look at the original 12.9" iPad Pro next to an iPad Air or iPad Air 2 and conclude that the iPad Pro is just bigger.

Although it is true that the 12.9" iPad Pro is bigger, there are internal hardware as well as accessory support differences that are nearly as important and are well worth evaluating accordingly. It is worthwhile to understand the differences between the two similar 12.9" iPad Pro models, too.

Photo Credit: Apple, Inc. (Front to Back -- iPad mini 4, iPad Air 2, 12.9" iPad Pro)

iPad Pro Differences

Much like its smaller brethren, the two original 12.9" iPad Pro models mostly are differentiated by connectivity.

The 12.9" iPad Pro (Wi-Fi) -- supports only 802.11a/b/g/n/ac -- whereas the 12.9" iPad Pro (Wi-Fi/Cellular) -- supports 4G/LTE connectivity and A-GPS in addition to Wi-Fi.

However, unlike smaller iPad models which have the same capacity options across the entire line, the 12.9" iPad Pro (Wi-Fi) initially was available in both 32 GB and 128 GB capacities and the 12.9" iPad Pro (Wi-Fi/Cellular) only was available in one capacity option, 128 GB. However, on March 21, 2016, Apple added a larger 256 GB capacity option to both models.

As a result, when new, the Wi-Fi/Cellular model started at a particularly expensive US$1079 and there was no cheaper 12.9" option if you wanted 4G/LTE and/or A-GPS support.

External Design Differences

The original 12.9" iPad Pro and iPad Air models share similar external designs with gently rounded sides and corners. The original iPad Air is available in white and silver or black and gray, whereas the iPad Pro and iPad Air 2 also are available in white and gold as a color option.

Photo Credit: Apple, Inc. (Silver, Gold, & Space Gray iPad Color Options)

As you would expect, the 12.9" iPad Pro and iPad Air dimensions are significantly different. Regardless of series, the iPad Air models are 9.4 inches tall and 6.6 inches wide whereas the iPad Pro models are a massive 12 inches tall and 8.68 inches wide.

The iPad Air models also weigh around a pound whereas the 12.9" iPad Pro is a bit more than a pound and a half, which definitely feels like a significant difference in weight.

The 12.9" iPad Pro and iPad Air 2 models also include a "Touch ID" fingerprint sensor embedded in the home button whereas the original iPad Air does not.

Accessory Support Differences

A major point of differentiation between the larger original 12.9" iPad Pro and its smaller iPad Air contemporaries is accessory support.

Photo Credit: Apple, Inc. (Apple Pencil)

Specifically, the original 12.9" iPad Pro has a "Smart Connector" that provides connectivity for an optional Apple Smart Keyboard (A1636, US$169) that is reminiscent of the Microsoft Surface Keyboard Cover. Additional pressure-sensitive sketching and drawing options are available courtesy of a very slick optional "Apple Pencil" (A1603, US$99), too.

The iPad Air and iPad Air 2 models support third-party keyboards that connect via Bluetooth as well as simple, non-pressure sensitive third-party styli, but Apple does not offer an Apple Smart Keyboard for these smaller models nor are the iPad Air models capable of supporting the Apple Pencil.

Display Differences

All of the original 12.9" iPad Pro and iPad Air models have a multitouch-capable IPS LED-backlit display, and all have the same 264 ppi pixel density, but there are major differences in size and finish.

Specific differences between the display in the 12.9" iPad Pro and iPad Air models include:

	iPad Pro	iPad Air	iPad Air 2
Display Size:	12.9"	9.7"	9.7"
Resolution:	2732x2048	2048x1536	2048x1536
Anti-Glare Coating:	Yes	No	Yes
Laminated Parts:	Yes	No	Yes

In basic terms, the 12.9" iPad Pro and iPad Air 2 have very similar display quality with an excellent color gamut, whereas the display in the original iPad Air also is high quality, but lacks an antiglare coating.

Camera Differences

The original 12.9" iPad Pro and iPad Air models alike are awkward to use as handheld cameras, but some still like to use them, and they can be more useful particularly when paired with tripods or other mounts.

In basic terms, the front-facing "FaceTime HD" cameras are quite similar -- all have a 1.2 megapixel sensor and can shoot 720p video -- but the camera in the 12.9" iPad Pro and iPad Air 2 has a larger f/2.2 aperture and "an all-new sensor and larger pixels" whereas the older original iPad Air has a f/2.4 aperture.

The rear-mounted "iSight" cameras in the 12.9" iPad Pro, iPad Air and iPad Air 2 all are capable of shooting 1080p video, but otherwise have some significant differences:

	iPad Pro	iPad Air	iPad Air 2
Megapixels:	8 MP	5 MP	8 MP
Panorama:	Yes	Yes	Yes
Burst Mode:	Yes	No	Yes
Video Zoom (3X):	Yes	Yes	Yes
Slo-mo Video:	Yes	No	Yes

Notice that the original iPad Pro and iPad Air 2 are identical whereas the older original iPad Air provides fewer megapixels and a reduced feature set.

Identification Differences

Although it is easy to differentiate the massive 12.9" iPad Pro from these other models due to its sheer size, it is not easy to visually distinguish the original 12.9" iPad Pro from subsequent models, nor is it easy to distinguish between the iPad Air and iPad Air 2 when they are not side-by-side. These iPad models all look so similar that visual identification is not a good method for differentiation overall.

Instead, one of the best methods for external identification is via Model Number. Model numbers are provided in tiny type toward the bottom of the back of each iPad:

iPad	Model No
iPad Pro (Wi-Fi)	A1584
iPad Pro (Wi-Fi/Cellular)	A1652
iPad Air (Wi-Fi Only)	A1474
iPad Air (Wi-Fi/Cellular)	A1475
iPad Air (Wi-Fi/TD-LTE - China)	A1476
iPad Air 2 (Wi-Fi Only)	A1566
iPad Air 2 (Wi-Fi/Cellular)	A1567

EveryiPad.com's Ultimate iLookup feature also can precisely identify these iPad models by Order Number (referred to as "Model" within the iOS "Settings" app under General > About), and their Serial Numbers, too.

Major Internal Differences

The massive performance boost that the original 12.9" iPad Pro models provide over the iPad Air and iPad Air 2 is almost evident from specs alone:

	iPad Pro	iPad Air	iPad Air 2
Clockspeed:	2.2 GHz	1.4 GHz	1.5 GHz
Processor Type:	Apple A9X	Apple A7	Apple A8X
Processor Cores:	Two	Two	Three
Architecture:	64-Bit	64-Bit	64-Bit
Coprocessor:	Apple M9	Apple M7	Apple M8
RAM:	4 GB	1 GB	2 GB
Orig. Storage (GB):	32/128	16/32/64/128	16/64/128
Current Storage (GB):	32/128/256	Disc.	16/64
Wi-Fi Support:	ac	a/b/g/n	ac
LTE Support*:	20 Bands	14 Bands	20 Bands
Apple Pay:	Yes	No	Yes
Barometer:	Yes	No	Yes

*Only Cellular capable models from each line support 4G/LTE. Wi-Fi only models only support Wi-Fi. For specific LTE band support, click on the link for a particular model of interest.

Note that the 12.9" iPad Pro has twice as much RAM as well as a much faster processor, but two rather than three cores like the iPad Air 2. Consequently, a detailed performance evaluation is necessary to properly compare the speed of these models.

iOS Support Differences

The original iPad Air originally shipped with iOS 7, the iPad Air 2 originally shipped with iOS 8 and the 12.9" iPad Pro originally shipped with iOS 9.

Regardless of the version of the iOS pre-installed, all three also support iOS 10 and iOS 11, but specific feature support differs:

	Panorama	Health	Apple Pay	Slide Over	Split View
Air	Yes*	No	No	Yes	No
Air 2	Yes	No	Yes†	Yes	Yes
Pro	Yes	No	Yes†	Yes	Yes

* Curiously, Apple quietly added Panorama support to the iPad Air (as well as the iPad mini 2), but not any earlier iPad models, with iOS 8.0.2.

† The iPad Pro and iPad Air 2 support Apple Pay within apps but not in retail stores.

All three of these models support iOS 12 also, but specific feature support varies for this version of the operating system, as well:

	Memoji	Camera Effects	ARKit 2	Siri Suggestions
Air	No	No	No	No
Air 2	No	No	No	Yes
Pro	No	No	Yes	Yes

The original iPad Air does not support iOS 13 (iPadOS) or subsequent versions of the iPadOS, including the current version.

The iPad Air 2 and iPad Pro models do support iPadOS 13 and iPadOS 14, the current version of the operating system.

However, when running iPadOS 13, these models do not support the Adjust Portrait Lighting and "High-Key Mono" photography features as well as modest AR features (Motion Capture and People Occlusion). When running iPadOS 14, the iPad Air 2 does not support any advanced features -- Location Anchors, Video Textures, Spatial Audio, or On-Device Dictation -- whereas the iPad Pro supports Video Textures, but not the other three features.

12.9" iPad Pro & iPad Air Comparison Chart

The above differences -- as well as US pricing details -- are summarized below:

	12.9" Pro	Air	Air 2
Introduced:	Sep 2015	Oct 2013	Oct 2014
Discontinued:	N/A	Mar 2016	N/A
Clockspeed:	2.2 GHz	1.4 GHz	1.5 GHz
Processor:	Apple A9X	Apple A7	Apple A8X
Processor Cores:	2	2	3
Architecture:	64-Bit	64-Bit	64-Bit
Coprocessor:	M9 Motion	M7 Motion	M8 Motion
RAM:	4 GB	1 GB	2 GB
Orig. Storage (GB):	32/128	16/32/64/128	16/64/128
Current Storage (GB):	32/128/256	Disc.	32/128
Display Size:	12.9"	9.7"	9.7"
Resolution:	2732x2048	2048x1536	2048x1536
Antiglare Coating:	Yes	No	Yes
4G/LTE Internet:	20 Bands	14 Bands	20 Bands
Wi-Fi (802.11):	a/b/g/n/ac	a/b/g/n	a/b/g/n/ac
Bluetooth:	4.2	4.0	4.2
Rear Megapixels:	8 MP	5 MP	8 MP
Touch ID:	Yes	No	Yes
Apple Pay:	Yes	No	Yes
Barometer:	Yes	No	Yes
SIM Card:	Nano	Nano	Nano
Original iOS:	iOS 9	iOS 7	iOS 8
Maximum iOS:	iOS 14	iOS 12	iOS 14
Color Options:	Silver Gray Gold	Silver Gray	Silver Gray Gold
Height:	12.0 in.	9.4 in.	9.4 in.
Width:	8.68 in.	6.6 in.	6.6 in.
Depth/Thinness:	0.27 in.	0.29 in.	0.24 in.
Weight:	1.57 lb.	1.0- 1.05 lb.	0.96- 0.98 lb.
Smart Keyboard:	Yes	No	No
Apple Pencil:	Yes	No	No
Orig. Price (Wi-Fi):	US$799 US$949	US$499 US$599 US$699 US$799	US$499 US$599 US$699
Orig. Price (LTE):	US$1079	US$629 US$729 US$829 US$929	US$629 US$729 US$829

For pricing in dozens of countries, see the "Global Prices" on the specs page for each iPad as well as the "By Global Original Prices" section of EveryiPad.com.

So, should I buy an original 12.9" iPad Pro, iPad Air, or iPad Air 2?

When the original iPad was released in 2010, although it had limited capabilities at the time, it already was clear that it had the potential to become the modern "computer for the rest of us."

The iPad has become more-and-more powerful -- and although many models still are perhaps best suited for consumption of content rather than significant productivity -- the original iPad Air very well could serve as the only computing device for many users when it was first released.

The original 12.9" iPad Pro certainly is designed to be a full fledged computer and definitely could be the only computer for many. For those who primarily love to draw, when combined with the pressure sensitive Apple Pencil, the iPad Pro could be better than a "traditional" notebook computer, even. It is worth noting that the iPad Pro costs a similar amount as a Mac notebook, as well.

Although these models now are older, the iPad Air 2 and original iPad Pro still have plenty of life left. Because the original iPad Air no longer supports the current version of the iOS, and app support will continue to wane accordingly, most users would be better off with a newer iPad.

If you're a user who would find the drawing capability of the iPad Pro particularly worthwhile, and perform other creative tasks like basic photo and video editing (but do more limited text input), and it is within your budget, the original iPad Pro (or a subsequent model) definitely is well worth considering.

Although newer models are better still, the iPad Air 2 also remains a capable computing device whether you intend to use it alone or also use a Mac or Windows PC.

iPad Pro Purchase & Sale Options

There are a large number of places to buy a new or used iPad Pro. However, buying your iPad from a quality company with extensive knowledge -- and after sales support -- will provide the best experience and save you money and time, too.

In the US, site sponsor Adorama sells new iPad Pro models with free shipping. Other World Computing and JemJem sell used and refurb iPad Pro models at bargain prices with free shipping, as well. Finally, if you need to sell an iPad, A+ BBB-rated Cash for Your Mac and GoRoostr will buy your older iPad with an instant quote and prompt payment.

In the UK, site sponsor Hoxton Macs has a large number of used and refurbished iPad models with a one-year warranty and free next day delivery throughout the UK. Delivery across Europe also is available starting at just £9.99 for two-day delivery to France and Germany.

In Australia, site sponsor Mac City may have used iPad Pro models in stock, as well. All Macs and devices are available with a free warranty and fast shipping across Australia.

Please also see EveryiPad.com's Ultimate iComparison feature to dynamically compare any iPad model to any other iPod, iPhone, or iPad.