AUDIO RECORDER SPECIFIC:

RFI WARNING:
The Zoom H1 (v1) has noticeable RFI (Radio Frequency Interference) when used at less than 5 FEET from an iPhone 13 Pro max. This is a major limitation, especially for LAV use, because if the recorder is in the pocket of a groom, and they have an iPhone somewhere in their coat, this is going to cause RFI.

My first impression of this combination (after testing this mic on a few other recorders) is that the MONO file it creates lacks both BASS/LOWS and HIGHS. I don't quite understand why other audio recorders (especially the Zoom F1) are able to capture what seems to be a fuller sounding recording. It may be because of the fact it's capturing in MONO, or perhaps that the A/D converter chips in the Zoom H1 are older and therefore inferior to the one in the F1?

GENERAL (MIC-SPECIFIC)
I've got quite a few notes about this mic (and most of them apply to any audio recorder). The first thing I'm noting, is that this mic does NOT sound good with the FURRY windscreen I've been testing recently (the Comica CVM-MF1). It does sound good (natural and "REAL") with the included stock FOAM windscreen. So, until I find a furry windscreen that matches this mic well, I cannot recommend this for OUTDOOR use (I'm looking into the white versions of the Ursa and Movo furry windscreens because the copy I have of this mic is white). Next, this microphone does NOT do a good job of reducing background noise. I know, it's an omnidirectional mic, but in comparison to a lot of the other lavaliers I've tested, it doesn't do well here. This can be used to your advantage in certain situations, however. One example might be if you're recording somebody like a comedian (or anyone speaking in front of a large crowd) as it may do a good job capturing a bit of the audience's reaction, etc. This can be helpful if you want to avoid combining multiple audio sources in post (i.e. one for the crowd noise, one for presenter).