Originally posted by MikeyBugs95 ... I've narrowed down my choice to a Godox TT350p
Just to let you know, the TT350-P
isn't yet released. B&H is showing 2-4 weeks, but
Adorama isn't listing it yet, and Godox have been known to be late before. And they've not yet announced a V350-P, TT685-P, or V860II-P. If you really are interested in a Godox flash, it may be better to wait at least until a few street reports are out.
A TT350, if it works as advertised, is a rocking bargain at $85, but it is limited compared to the full-sized TT685 ($110)/V860II ($180).
It's only powered by 2xAA, not 4xAA, so it's lower-powered.
It's smaller and lighter, but doesn't swivel 360º (only 270º), has no sync port, no recycle beep, and no external battery pack port. It gets firmware update a lot less frequently that the bigger speedlights. It is mainly designed to balance well on small mirrorless bodies. It also is not designed to do the cross-brand TTL switching (as a radio slave) that the TT685/V860II can do. And as an on-camera transmitter, the XPro-P has a lot more function and a much better UI.
And there's a further feature the TT685/V860II
might have (might not), which is smart optical slave/master capability. So far, only the -C/-N/-S versions have this, the -F/-O versions do not. And until they're announced we'll have no idea which way it will go, but having a backup triggering system is never bad. None of the 350 models, however, can do smart optical. And the V versions can help with battery handling, if you plan on heavy prolonged usage of flash (say, shooting weddings), by using a li-on battery pack that has about 3x the capacity of a set of AAs.
The Godox system for Pentax isn't yet all rolled out. Three to six months from now, the picture will be a lot clearer on what Godox has to offer a Pentax Shooter.