Looking to see if I could execute this using Meshtastic.

Correct me if I'm wrong, but meshtastic is great for short amounts of data to transfer over long distances.

Thinking about having a node (comfortabley) attached to my dogs that frequently broadcasts their GPS location.

This would be an alternative to using data sim cards and other extra junk. Essential for out in the boonies.

How small could this get? I don't think they'd mind wearing a chunky block on their side, but the smaller the overall better.

And would this also be great for keeping track of important objects and personal belongings?

Thanks.