By that definition, you shouldn't be using computers or calculators or contacts application on the phone. These tools are augmenting our own computational units we carry around. Sort of like a external storage or a external tpu.
When I was in high school I remembered all my friends' phone numbers. Now I don't know anyone's number.
I don't think it augments our computational units, it atrophies them and we become ever more dependent on the tools. Yes, the tools can also do things beyond (or faster than) what the best human mind can do -- but at a cost.