Bluetooth and GPS are two types of wireless signals with different strengths and weaknesses: Bluetooth uses a short-range signal that can travel up to 150 metres in ideal conditions. It also requires a compatible device nearby to work. Compared to GPS, Bluetooth trackers are usually smaller, more affordable, and don't require a subscription to enable tracking. They have a longer battery life—often a year or more—which makes them an excellent option for finding stationary objects like keys and bags. GPS uses a long-range signal that connects to a satellite network. You'll pay a small subscription fee for the GPS tracker to connect to a mobile network to transmit location data to your phone. Compared to Bluetooth, GPS trackers offer greater accuracy and are better for live tracking of moving subjects like pets, vehicles, and people. The batteries on GPS trackers last up to 20 days, depending on the brand.