| T 5 MINI | T 5 | TT™ 15 MINI | TT™ 15 | TT™ 15X/T5X | ALPHA TT 25/ALPHA T 20 ** | |
|---|---|---|---|---|---|---|
| Range | up to 6.4 km* | up to 14.5km* | up to 6.4 km* | up to 14.5km* | up to 14.5km* | up to 14.5km* |
| Training modes | No | No | Yes | Yes | Yes - TT 15x No - T 5x |
Yes - TT 25 No - T 20 |
| LED light colour | One colour: White | One colour: White | One colour: White | One colour: White | One colour: White | Changeable: red, yellow, cyan, blue, white, magenta |
| Replaceable GPS Flex Band | No | No | No | No | No | Yes |
| Rescue mode | Yes | Yes | Yes | Yes | Yes | Yes |
| Update rate | 2.5s, 5s, 10s, 2min | 2.5s, 5s, 10s, 2min | 2.5s, 5s, 10s, 2min | 2.5s, 5s, 10s, 2min | 2.5s, 5s, 10s, 2min | 2.5s, 5s, 10s, 2min, Dynamic |
| Sleep mode | Yes | No | Yes | No | Yes | Yes |
| Battery life | 16-30 hours | 16-30 hours | 16-30 hours | 16-30 hours | up to 80 hours | up to 68 hours |
| Extended Battery Pack | No | No | No | No | No | up to 136 hours |
| Software updates | Garmin Express | Web Updater- PC only | Garmin Express | Web Updater- PC only | Garmin Express | Wi-Fi Garmin Express |
Size differences
Previous versions of the collars were available in two different sizes. The T20 and TT25 come in one size, but you can buy a smaller GPS Flex Band to fit a smaller dog
| TT 15/T5 and TT 15X/T5X | T5 MINI/TT 15 MINI | T20/TT25 | |
|---|---|---|---|
| Device dimensions | 3.5" x 1.75" x 1.85" | 3.1" x 1.8" x 1.4" | 3.2" x 1.8" x 1.4" |
| Weight | 283.49 g total (with collar) | 198.45 g total (with collar) | 262.7 g total (with collar) |
