After I lost my dog for 5 days and nights I began my search for a GPS tracker in case this was ever to happen again. I purchased a Garmin device that was probably good, but not for my needs. I wanted something more for running with my dog on trails and it was just way too bulky for everyday use. Then I purchased a Fi collar. Let me just say that it was a joke. Not only did the collar fall off my dog on a run, but the tracking was useless. I couldn’t even use the service to locate the collar even though I had good coverage on my phone. The app was terrible on so many levels as well. Then I purchased a Tractive collar and I have to admit that I was skeptical especially for the price, but it works great. I can’t believe how good of a product it is and I would have happily spent more money. I’ve been using it for a few week now and the GPS has been super reliable and the app is great too. It actually works for you instead of forcing you to use it how the company wants you to use it like the Fi. It shows where you are in proximity to the collar unlike the previously mentioned collar and it has an on/off switch as well. The app has what you need and not a bunch of unnecessary information that I feel is pointless if you just want to be able to find your dog. So if you are looking for a collar that is priced right and works great get a Tractive collar.