I'm not familiar with the brands mate. We use whatever is available. For stethoscope both me and my wife use our old Littmann's ( not sure of the model, it's the commonest among doctors everywhere)
Lemme check the BP machine brand...****!! It's from a brand called doctor!! ( That's what the dial says, and a small made in Japan logo...never noticed it)
No bro. I can't decide on the brand for the sphygo yet.
After you said Littman I dared to check the prices of them and found even the most one costs like 6-7k, it scared me lol. Then someone on another forum looking for a bp monitor said the microtone (msi) brand of stethos are of good enough quality, costs within 1k too, which I've fixated on, but still my search for the aneroid goes on. That guy said most used ones are from a company called Diamond, checked the reviews on Amazon for the same and found users saying accuracy isn't that much, so I am confused.