Rugged tablets we recommend can be found here: 8" display, 8" display with LTE, 10" display, 10" with LTE, and the Samsung Website. The 8" Tab Active3 was just released and would be the preferred tablet. I like the 8" size and LTE is not needed but is convenient if you want to sync data often from the field.
The first link is for getting a new customer registered and set up in Intersect. https://youtu.be/R2pVSMJT-j0 This link is to the playlist that explains how to enter data into Mixmate ...