Apple 12.9" ipad Pro Pros& cons

Pros	Cons
Attractive, extremely thin designs. The 9.7", 10.5" and 11" models weigh a pound or less and the 12.9" models weighs a little more than a pound and a half. Plus point.	The 12.9" models are large and heavy enough that some users may find it difficult to hold for long hours.
​Bright, high resolution and crisp displays. Although all are high quality, each series is even better than the last with increased brightness and improved refresh rates.	The original 12.9" display is not as high quality as the 9.7" model and subsequent models.
​All displays have a very good antiglare coating. Fast performance, even faster than some Macs. Excellent battery life. System-wide mirroring support. All iPad Pro 11" models and iPad Pro 12.9" (3rd Gen & 4th Gen) even support a second display.	​The original 9.7" model only has 2 GB of RAM unlike the original 12.9" model and subsequent models that have 4 GB of RAM or more. This likely means that the original 9.7" model will not be usable for as long and iOS support will be more limited in the future.
​Cellular capable models support a wide range of cellular bands with each new model supporting more bands than the last. The current iPad Pro 11" (3rd Gen) and iPad Pro 12.9" (5th Gen) models support 5G. Quality rear cameras (especially iPad Pro 2nd Gen and later models). Usable onscreen keyboard and optional external Apple Smart Keyboard and Apple Magic Keyboard make productive use quite possible (larger keyboards for the 12.9" models is easier to use than smaller keyboards for the smaller models). Sold unlocked and without a contract in the US, and most other countries, with multiple wireless carrier options. Touch ID or Face ID authentication. Apple Pencil support (All iPad Pro 11" models and iPad Pro 12.9" 3rd and later models support the much better Apple pencil 2nd Gen). USB-C support -- all iPad Pro 11" models and iPad Pro 12.9" 3rd and later models -- opens a world of more "computer-like" usage with storage, docks, and external display capability. The current iPad Pro 11" (3rd Gen) and iPad Pro 12.9" (5th Gen) models support even faster Thunderbolt / USB 4 via their USB-C shaped port. LiDAR scanner -- on iPad Pro 2 11" and later and iPad Pro 4 12.9" and later -- promises distant measurement and significant enhancements in AR experiences.	The battery is glued in place and is not designed to be replaced by an end user. Internal storage cannot be upgraded and may be inadequate given increasingly large file sizes to display images and other content optimized for the high-resolution displays (not to mention recording 4K video on compatible models). However, recent iPad Pro models easily can support external storage via USB-C. taking photos and video with such a physically large device is bit cumbersome. No SD card slot for easy photo/file transfer. The original 9.7" model only supports USB 2 rather than USB 3 like the original 12.9" model and subsequent models, so data transfer is much slower on the 9.7" model. The original 12.9" model lacks 4K video support. Onscreen keyboard and even many of the external keyboard options are not as comfortable as typing on a "traditional" notebook keyboard with more "travel" for the keys (the apple Magic Keyboard option finally get pretty close, though). No bundled headphones (a particularly miserly omission given the high price of the device). On all iPad Pro 11" and iPad Pro 12.9" (3rd & 4th Gen) models, there is no "Home" button and this may take some getting used to for those not already acclimated by recent iPhone models. All iPad Pro 11" and iPad Pro 12.9" (3rd & 4th Gen) models are not compatible with many older Lightning-based peripherals without adapters. Expensive compared to other iPad models, Android tablets, and even many full featured Mac and Windows notebooks.