It's not the typical PDA, it's a little smaller or near the same size as an LPDA, mine doesn't actually scan bar codes though. I have to actually type in the price.
Here's my weekly routine:
Friday (or Sat/Sun) I download the shop onto the device from the Target server
Monday I go to Walmart and knock out a big chunk of the list
later in the week I go a second time and finish the remainder items
Upload shop to target sever (it's due on Fridays)
Walmart pretty much knows that you're from Target, in my experience they are quite friendly and make quick conversation with me as I'm there every week. I know some people have not so pleasant experiences with workers there, but I just try to be respectful and stay out of the way of their working..if they are unloading a pallet I skip over that aisle and come back to it. The list for me is usually 670-930 items long, very vague with little to no direction. Often times it will say something similar to "Barbie Assortment" and Walmart will have 10 different options of barbie assortments, and the dpci number that is on the device doesn't match because it's not the right number. It won't tell you what the price was the last time, but if you are drastically off, it will inform you. A majority of the items seem to be the same or similar on a week to week basis, so once you figure out what they are talking about they become easier with time. It can be stressful in certain departments but for the most part it's okay, just very long. The perks are that you don't have to be at Target, you aren't obligated to talk to anybody, you can wear headphones and aren't hassled by "Additional cashiers to the front lanes" calls every 2 seconds. It makes me just want to do Compshop only and come back to my other work centers once My Time starts scheduling more cashiers.