Choosing the correct GPS collar for your dog might be tricky, because location matters a lot in terms of performance. There are several instances where a GPS collar does well in an urban area and not in a rural context. Some areas have weak internet connection or plenty of greenery which might impact the collar function. That’s exactly why it’s best to consider not only about the product’s specs but about its actual applicability. Brands like Guardian, Halo, Fi, Garmin and Tr