Right at the product
A 10.1 or 13.3 in screen fits an endcap or a counter where a big TV would never go.
Retail
The sign should sell the thing next to it. Small screens at the shelf do that, and they do not need the store Wi-Fi.

A 10.1 or 13.3 in screen fits an endcap or a counter where a big TV would never go.
Send a store a card, or files to copy onto one. No store staff logging into anything.
Use a card for each store, or point screens at your own web server with HTTPS sync.
Capacitive touch is an option on every size. Signage usually does not need it, so None is the default in our builder.
Free slides to test with, labelled as sample artwork. Unzip to a card and it plays. Portrait pack · Landscape pack