The iPad Pro is a new product that differs in several ways from the original iPad models. Here's how the Pro fits into the iPad lineup with the iPad Air 2 and iPad Mini 4.
Size
Pro: 12 x 8.86 x 0.27 inches , 1.57 lbs
Air 2: 9.4 x 6.6 x 0.24 inches, 0.96 lbs
Mini 4: 8 x 5.3 x 0.24 inches, 0.65 lbs
Screen
Pro: 12.9 inch diagonal, 2732 x 2048 pixels, 264 ppi, Pencil stylus support
Air 2: 9.7 inch, 2048 x 1536 pixels, 264 ppi
Mini 4: 7.9 inch, 2048 x 1536 pixels, 326 ppi
The iPad Pro detects the Pencil position, pressure and tilt.
None of the iPads support 3D Touch, the pressure-sensitive technology that works with your finger as pointer, which is used in the Apple Watch and the new iPhone models.
Processor
Pro: A9X processor
...cpu 2.5 times faster, graphics 5x faster than A7 processor used in 2 year old iPad Air)
Air 2: A8X processor
...cpu 1.4 times faster, graphics 2.5 times faster
Mini 4: A8 processor
...cpu 1.3 times faster, graphics 1.6 times faster
RAM
Pro: not announced, rumored to be 4 GB
Air 2: 2 GB
Mini 4: 2 GB
Operating System
All three will run iOS 9, including split screen multitasking. The faster processor and larger RAM in the iPad Pro should provide an advantage in multitasking.
Applications
All will run standard iPad apps. Special features are being added to apps to take advantage of the digitizing Pencil only available with the iPad Pro. Other stylus products are available from third parties for the iPad. For example, the Adonit Jot Pro is $30. These stylus products lack pressure sensitivity and tilt measurement, features found in the Pencil.
Storage and Pricing
Pro: 32 GB ($799) and 128 GB ($949)
Air 2: 16 GB ($499), 64 GB ($599) and 128 GB ($699)
Mini 4: 16 GB ($399), 64 GB ($499) and 128 GB ($599)
add $130 to any of the above prices if you want an LTE data modem, which includes a GPS/GLONASS receiver necessary for navigation away from known WiFi hotspots.
Rear Camera
all three use the 8MP, f/2.4 camera from last year's iPhone 6
Home button
all three use the fingerprint-reading Home button, required for Apple Pay
Did I miss anything?
Size
Pro: 12 x 8.86 x 0.27 inches , 1.57 lbs
Air 2: 9.4 x 6.6 x 0.24 inches, 0.96 lbs
Mini 4: 8 x 5.3 x 0.24 inches, 0.65 lbs
Screen
Pro: 12.9 inch diagonal, 2732 x 2048 pixels, 264 ppi, Pencil stylus support
Air 2: 9.7 inch, 2048 x 1536 pixels, 264 ppi
Mini 4: 7.9 inch, 2048 x 1536 pixels, 326 ppi
The iPad Pro detects the Pencil position, pressure and tilt.
None of the iPads support 3D Touch, the pressure-sensitive technology that works with your finger as pointer, which is used in the Apple Watch and the new iPhone models.
Processor
Pro: A9X processor
...cpu 2.5 times faster, graphics 5x faster than A7 processor used in 2 year old iPad Air)
Air 2: A8X processor
...cpu 1.4 times faster, graphics 2.5 times faster
Mini 4: A8 processor
...cpu 1.3 times faster, graphics 1.6 times faster
RAM
Pro: not announced, rumored to be 4 GB
Air 2: 2 GB
Mini 4: 2 GB
Operating System
All three will run iOS 9, including split screen multitasking. The faster processor and larger RAM in the iPad Pro should provide an advantage in multitasking.
Applications
All will run standard iPad apps. Special features are being added to apps to take advantage of the digitizing Pencil only available with the iPad Pro. Other stylus products are available from third parties for the iPad. For example, the Adonit Jot Pro is $30. These stylus products lack pressure sensitivity and tilt measurement, features found in the Pencil.
Storage and Pricing
Pro: 32 GB ($799) and 128 GB ($949)
Air 2: 16 GB ($499), 64 GB ($599) and 128 GB ($699)
Mini 4: 16 GB ($399), 64 GB ($499) and 128 GB ($599)
add $130 to any of the above prices if you want an LTE data modem, which includes a GPS/GLONASS receiver necessary for navigation away from known WiFi hotspots.
Rear Camera
all three use the 8MP, f/2.4 camera from last year's iPhone 6
Home button
all three use the fingerprint-reading Home button, required for Apple Pay
Did I miss anything?