We use the ASUS 10" tablet for this. We got several of them on our Verizon Wireless account and use them both in the warehouse and on the road as mobile sales terminals for the sales reps. Of course these are Andriod devices. We got the tablets for less than $200 each and they have been active in the field now for over 6 months without a single issue. We have 22 of them deployed along with 8 ASUS Windows 10 tablets. The android tablets perform the best. The only advantage to the Windows tablets is they allow us to connect POS hardware (cash drawer and receipt printer) directly to the tablet so we only use them as terminals in the retail stores.
I know that iOS users do not like to hear this, but it seems the newer Android devices are working much better for this than any of the Apple devices (even the new tablets). The ASUS tablet is Android ver.7 and we run Chrome browser because it seems to work much better with the HP Printer app that lets us print sales invoices right from the tablet to the printer wireless.
Back in November and December of 2017 I spent a bunch of time and $$ testing this on different platforms and settled on the two I listed above. Believe me, it was not an easy discussion to have with the client because they were almost entirely Apple iOS users already. However, when we tested it on all of their devices, it only partially worked on 2 out of 36 devices. When their employees tried it on their personal Andriod phones, it work on every single one. That tipped the scales for the client and they retired all of the iOS devices.
Hope this helps
BKM