Anyone looking for an Amazon SIM-free GPS dog tracker knows that one of the main problems with all types of satellite collars is to determine it will then communicate with the device that is acting as receiver. The models that are mostly used with hunting dogs are actually composed of a collar kit and a receiver. The two devices communicate via radio frequencies which, although offering immediate data transmission with a range of a few tens of metres, have the disadvantage that this range of action is limited, and, above all, the use of radio frequencies to communicate is regulated by the State and the frequencies used by the collar are not always free in our country.

Is it better to have a dog GPS with or without a SIM?

This is why the most common solutions, the ones we find when looking for an Amazon SIM-free GPS dog tracker, have adopted a different solution, using a data connection instead of a GSM SIM.


In this way, via the 2G telephone line the collar can communicate location and all other data collected to a server, which can then be accessed via any device capable of connecting to the internet, and which will therefore act as a receiver. When purchasing an Amazon SIM-free GPS dog tracker then, you receive only the collar; the device acting as “receiver” will usually be our smartphone, via the app that accompanies the collar itself and which allows you to view in real time the position and movements of the dog on the map.

Costs of GPS for dogs without SIM

As regards the cost and operation of the GSM line, not all manufacturers have arrived at the same solution. Some offer their customers an Amazon SIM-free GPS dog tracker and therefore it is up to the buyer to obtain a SIM and a data plan. Others relieve the consumer of this choice, integrating a SIM with a data subscription directly within the collar that functions with various operators, choosing the one with the highest signal each time based on the area in which it is located. There is no doubt that this latter solution greatly improves the efficiency of the collar, reducing as far as possible the risk of not being able to locate your dog because your chosen operator has poor coverage in the area.