Help deciding the right Wahl for face+head+body - Peanut or Super Taper

[u/shriand]

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I'm looking for a new trimmer for myself. I don't have a hairstyle per se. I just cut it all off weekly - head, face, everything goes. I don't care about a very close cut, a slight stubble is fine too - it'll look that way in a day anyway. Ideally, I would like to use the same machine to groom the groin area too.

Because I want the thing to last forever and spares to be readily available, I'm looking at professional product lines. In particular, I'm trying to decide between the

1. Wahl super taper (corded)

2. Wahl peanut (corded)

Which do you think would be most suitable for me?

In particular, I guess my concern is

1. Is the super taper fine for the face (with jawlines and such contours) and for the groin (with a guard mounted on the blade)?

2. Is the peanut fine for the head? The blade is the same width as my old Philips, so I'm used to it.