Polytune 3 Noir : Fast and sleek but is it accurate?

The TC Electronic Polytune 3 mini Noir is an almost full-featured pedalboard tuner in a really compact form. It responds fast and switches from polyphonic to single string tuning fast and without glitches.

You can only tune to a base 440Hz with this tuner, so beware of that. No battery operation either.

As for the tuner's accuracy, there is a somewhat rough edge. When set to strobe mode, the polyphonic tuning completely agrees with the strobe single string tuning and with my peterson stroboclip tuner. Everything fine here. But, if you switch to needle mode (which is more convenient for me on stage), the low E string shows a little flat in polyphonic mode. If you tune it up, it shows a little sharp in single string mode. Not a massive difference, but it is a bit concerning. It is probably something that could be fixed with a firmware upgrade but the polytune 3 mini firmware cannot be upgraded. That's a bummer. So, if your pedalboard has enough space, go for a full size polytune 3.