What I take with me depends on a) what archive I am visiting and b) whether I am using public transport or driving.
I don’t take photos using my mobile very often as my digital camera is not only quieter and easier to use but also has 16Mp whereas my phone is only 5Mp so I get a much better image which blows up successfully. When a camera stand is available I always use it to avoid camera shake and where lights are also available great! My camera which wasn’t expensive has a stealth mode setting as standard with no sound or flash so it is kept permanently on that setting.
I have an Android 10 inch tablet which takes a micro SD card so I tend to take that along to check that the photos I have taken are OK (I use a micro SD card adapter in my digital camera). It is very useful to load my reference documents on to my tablet so that I can easily check. Viewing images is particularly successful on a tablet.
I used to type my notes direct to my laptop but actually found that to be a bit limiting so now I do my notes in a paper notebook to scrawl addtitional notes all over in red pen and type them up afterwards taking that opportunity to analyse what I found. I tended to type up and forget so what seems a retrograde step is actually better for me. I am looking into the apps for written note taking on a phone though.
I am experimenting with dictating notes to my phone but so far it hasn’t worked and obviously I can’t do that in an archive so tend to use that when doing research in the field.
Not all archives or libraries have public wifi and even when they do there are often connection issues so I usually access my cloud storage via their own computers. Some archives allow you to use memory sticks on their computers others don’t – again a way of taking your files with you and with an adapter you can view them on your tablet as well.
In general I embrace new technology to see if it can help me but I’m a member of the paper and pencil generation so it doesn’t come naturally to me. I still print out my essential notes and research plan before I go to an archive so that I can write notes alongside while I am there.
What most influences what I take however is the weight of the various devices. If I have to walk some distance I don’t want to be carrying too much so I try to cut it down to the minimum.