Whether you're hunting or training—or both—find the best tools for managing your dogs in this PlayBetter article on Garmin Dog Collars and compatible Alpha GPS handhelds.
The main difference between the TT™ 15 and the T 5, is that the TT 15 can be used for tracking and training, and the T 5 is only for tracking.
Both devices are top-mounted, high-sensitivity GPS/GLONASS receivers and come in regular (up to 9 miles away) and mini models (up to 4 miles away). The TT 15 and T 5 Garmin dog collars are compatible with both the Alpha 100 and the Alpha 200i handhelds. You can bundle the Alpha 100 with the TT 15 or the TT 15 mini collars. You can bundle the Alpha 200i handheld with the TT 15, TT 15 mini, T 5, and T 5 mini. Find all of these on the PlayBetter dog tracking and training page!