There's no nice way to say this, so I'll just say it. Windows 8.1 on tablets shouldn't work. On paper, there's just nothing that indicates that this kind of device should be anything but a terribly compromised mess. For the most part, this is a completely true statement, and I really can't recommend one. So why am I writing this, you might ask? Simple; I decided to get one.
I've used a lot of different mobile devices over the years. My first, coincidentally, was a Windows Mobile 6 device. It was an HTC Touch Pro. It wasn't a great device, if I'm completely honest, but most of that came down to Windows Mobile 6. It was never really meant to be a smartphone platform. It was meant to run on mobile computers with integrated barcode scanners. It also required a stylus.