Is there a way to equip armor without going into the inventory screen? In PvP, it would be more ideal to be able to equip on the move. Is there any way to do this, or otherwise equip up faster?
Options for equipping armor are:
- Shift click (mentioned in comments on your question)
- Hot-bar click (mentioned in the other answer)
- Dispenser while you stand in front of it (this was added for adventure mode, but it should work in survival and creative as well)
Equipping armor at some random location (on the move would be random) you are probably not interested in placing dispensers and pressure plates (or other redstone) and loading the armor into it. The first two options are your non-modded options.
If you are looking for mods to do it, then search for them specifically. I'm sure there are hundreds of options out there (with varying degrees of functionality).