I use an MBA and an iPhone, but a cheap tablet or phone would work just as well. I care about network, portability, screen size + quality, and speech to text. Pretty much nothing else matters, CPU / GPU irrelevant as long as it can run a browser. I might build a native non-browser version at some point for better resource management on the client, but it hasn't been an issue so far. I would love a pair of glasses I could render text on with speech to text. It's such a gap in the market, might just build my own bespoke thing if I can source the components for it. An e-ink tablet would also be a great option for working outdoors...