o-gps1 or o-gps2?

I'm looking to try a bit of astro photography using a KP and one of the gps units (based in UK /Northern Hemishere). It is said in the advertising bumf that the gps2 is more 'accurate' possibly due to picking up Galileo and Glonass satelites but does anyone know if that is actually the case and whether that translates to better/easier astrotracer images?

I'd get a Sky-Watcher Star Adventurer Mini, that's 50 quid more than a O-GPS2. If you want to spend 100 quid more, then get a Star Adventurer 2i Pro Pack (this is the one I have). It is far more capable and it can also be used to create time lapse images.

Ioptron also make one which is from about 380 to 600 plus quid.

I tried the O-GPS1 and it was good... but nowhere near the same league as a Star Adventurer. I beleive the Ioptron ones are even better!

Star Adventurer Mini Link

Star Adventurer 2i Pro Link

Thanks, that's helpful but (although we can always spend more for better quality gear ) I think that to start with I'd like something easy to use and really portable, and I do also want the o-gps units location tagging of images. Besides, half the point is dropping a print on my hi-tech canon shooting colleagues desk saying ' just done with the camera and a forty year old bit of manual focus glass' as I walk away with a big grin (again).

I managed to pick up an O-GPS2 from Amazon last Oct for £148, it may be worth keeping an eye open for further offers.

I've been thinking about equatorial mounts. That isn't a bad price! Would be great for my 300mm with TC or wider lenses.