Two of Garmin’s most popular lines in the dog world – the Alpha and the Astro – are often compared against each other. We have taken the latest in each of these lines and compared the Garmin Alpha 100 against the Garmin Astro 430.

Here’s how they stack up:

GARMIN ALPHA 100 GARMIN ASTRO 430
Functionality This device is a tracker and remote trainer This device is a tracker
No. of dogs tracked Can track up to 20 dogs Can track up to 20 dogs
Range Range is up to 9 miles (with TT15 collar) or 4 miles (with TT15 mini) Range is up to 9 miles (with T5 collar) or 4 miles (with T5 mini)
Maps available Comes with pre-loaded TOPO U.S. 100k maps Comes with pre-loaded TOPO U.S. 100k maps
Compatibility with other devices & software Compatible with Garmin DriveTrack 70 LMT; Works with BaseCamp software Compatible with Garmin DriveTrack 70 LMT; Works with BaseCamp software
Tri-tronics Dog Training Technology Includes Tri-tronics electronic dog training technology for remote dog training Does not include Tri-tronics electronic dog training technology
Stimulation levels Various levels & types of stimulation No stimulation levels
Different Modes Traditional and Linear stimulation modes No stimulation modes
Types of Alerts Tone and vibration alerts No tone and vibration alerts
Battery Life Rescue Mode to extend battery life No Rescue Mode to extend battery life