Raspberry Pi 0 alternatives with wifi and GPS

[EOM]

Not sure if this is the right forum, but I'm looking for something similiar to a Raspberry Pi Zero that provides GPS and WIFI and is small.

Essentially i want to make a DIY: https://pocketfinder.com/personaltracker/ like that but MUCH cheaper and no monthly subscription and just wifi.... lets assume i'm tracking my dog around my property and have complete wifi coverage and have the ability to script the logging server myself....

 

[luv2liv]

i am not aware of any device that small with GPS built in.

looking at pocketfinder, i am curious about battery life. strange that is not listed anywhere. another option is trakimo and that thing is tiny!