When choosing between the Garmin Alpha 100 vs Astro 320 vs Astro 430 handheld systems, you’ll want to check out this comparison guide.
Each of these Garmin handhelds offers something different, so we’ve identified for you what each one is designed for.
The Alpha 100 for example is a tracking + training handheld, whereas the Astro 320 and 430 are tracking ONLY handhelds.
We’ve also outlined the main differences and similarities between them.
Let’s check them out!
(NOTE: this is a general information guide only, and is not professional advice, or a substitute for professional advice. A qualified vet or animal expert is the only person qualified to give you expert advice in regards to your pet/s)
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Garmin Alpha 100 vs Astro 320 vs Astro 430: Comparison Guide
If you want to go straight to viewing any of the handhelds, you can do so here:
- Garmin Alpha 100 with TT 15 Collar Bundle (on Chewy)
- Garmin Alpha 100 (with TT 15 collar) Dog GPS Bundle (on Amazon) (Alpha 100 with TT15 collar included)
- Garmin Alpha 100 Handheld (on Amazon) (just the Alpha 100 handheld by itself)
- Garmin Astro 430/T 5 Collar Bundle (on Amazon)
- Garmin Astro 430/T 5 Mini Collar Bundle (on Amazon)
- Garmin Astro 430 Handheld Only (on Amazon)
Compatible Collar Devices
You can check out reviews of the handheld compatible T5 (better with the Astros) and TT15 (better with the Alpha) standard and Mini collars here:
Garmin Alpha 100 vs Astro 320 vs Astro 430: Which Is Better?
The Astro 320 and 430 are tracking only handhelds, whereas the Alpha 100 is a tracking and training handheld.
So, if you want the ability for training options – static, sound and vibration – go for the Alpha 100.
Apart from that, it depends what you want out of the handheld, and how many features you want.
The 320 has the least features, the 430 is in the middle, and the 100 is the most advanced/developed, and has the most features of the three.
For the tracking only handhelds, in our opinion the price difference is fairly negligible.
It’s probably worth just going with the Astro 430 and you’ll get extras like the TOPO U.S. 100K maps, Geofences, ‘Treed’ and ‘On Point’ notifications + more.
Garmin Alpha 100 vs Astro 320 vs Astro 430: Differences
We’ve already outlined the main differences between the Astro 320 and 430 models – you can check them out here in this Garmin Astro 320 vs 430 Comparison Guide.
That leaves us with the Alpha 100.
Some of the main differences between the Alpha 100 and the Astro models are:
The Astro models don’t have the capability for training options. The Alpha 100 on the other hand is a GPS tracking + training handheld. You can activate the static, vibration and sound training functions in the TT15 collars
Speaking of the TT15 collars, the Alpha 100 is best suited with the TT15 collars which are tracking + training collars, while the Astro models are probably best suited with the T5 collars which are tracking only collars
The Alpha 100 comes with Rechargeable Li-ion included.
The Astro 320 in comparison runs on 2 x AA batteries that aren’t included, and the Astro 430 can run on either NiMH pack batteries or 2 x AA batteries (neither of which are included in the kit)
The Alpha 100 allows you to track up to 20 dogs including other Alpha handhelds, whilst the Astro models only allow tracking of collars/dogs
The Alpha has a 3 inch diagonal screen, whereas the Astro models have 2.6 inch diagonal screens
The Alpha is about 0.4 oz lighter than the Astro models
The Alpha allows up to 4000 waypoints, whereas the Astros allow 2000
The Alpha has a ‘rescue mode’ that allows you to conserve the battery when it gets to 25%
Garmin Alpha 100 vs Astro 320 vs Astro 430: Similarities
We’ve already outlined the main similarities between the Astro 320 and 430 models – you can check them out here in this Garmin Astro 320 vs 430 Comparison Guide.
That leaves us with the Alpha 100.
Some of the main similarities between the Alpha 100 and the Astro models are:
Tracking that involves see where your dog has been, where they are going, dog specific statistics, a zoomable map that lets you see all, some or none of your dogs
Compatible with both the T5 and TT15 collars
Range between collar and handheld up to 9 miles
The battery life is up to 20 hours
IPX7 Water rating
Ability to have 200 routes
10,000 points, 200 saved tracks for the track log
Has a barometric altimeter
Has a tilt-compensated 3-axis compass
Has area calculation
Has automatic routing (turn by turn routing on roads)
Allows custom maps
Has hunt/fish calendar, and sun and moon information
Runs of a MURS frequency band
Storage is via a microSD™ card
The Astro 430 and the Alpha 100 share the following similarities – TOPO U.S. 100K preloaded maps, up to 20 dogs can be tracked, geofencing, Compatible with Garmin DriveTrack 70LMT, ‘Treed’ and ‘On Point’ notifications
Garmin Alpha 100 vs Astro 320 vs Astro 430: Reviews
For more information on the handhelds, you can check out these individual reviews and the comparison guide:
For complete information on compatibility and Garmin add on programs and devices, check out Garmin’s site.
Best Trackers & GPS Collars For Dogs
Read more about some of the best trackers and GPS dog collars for dogs in this guide.
Best Remote Dog Training Collars
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