Bluetooth, Wi-Fi, and Wireless thermometers distinctive by both range and how they interact with the grill. Bluetooth is excellent for short-range communication, when you want a portable solution in a powerful smartphone app that doesn’t depend on a Wi-Fi signal. If you want all of that, but want to step outside of the best-case range of 100-200 feet (and will be grilling with a great Wi-Fi signal), choose Wi-Fi. If you’re willing to give up the smartphone app, wireless RF thermometers average up to 500 feet — but we know of a few that hit a mile. Hope you can run!