Garmin Astro 320 vs 430

To let owners hunt and take their pet like dogs outside at ease, we can make our pet wear GPS collar that we can track from our device so we are always informed about their location. If you often hang with companion, hunting for game in the wild, Garmin Astro 320 vs 430 are two good options to get now. They are tracker for dog owners and have a very similar capabilities but also a little bit different so check our article first before deciding to shop.

In this article, we are going to give you information about:

  • Do you need to track your dog
  • What are Garmin Astro 320 and 430
  • What Garmin Astro 320 and 430 Look Like
  • Which Collars used with Garmin Astro 320 and 430
  • How far we can track with Garmin Astro 320 and 430
  • What Garmin Astro 320 and 430 can offer to you
  • Garmin Astro 320 vs 430

GPS Dog Tracker

One of our biggest fears as a pet owner is losing them out there because many animals that runs from its owner due to exploring or following prey lost forever or never found later which is heartbreaking. Common house pets like dogs and cats are naturally explorer and they are very curious of their surroundings so when took to a walk or together while jogging they may find something interesting and runs from their owner. It is good when we can catch them but, some of us can’t especially when in the wild.

Dogs are prone to lost out there because they are the one we bring together while hunting or on a mission with SAR team to look for various clues. When out there, we never know what they find or whether they will catch object that attract their attention the most which in some cases made the owner lose one of their companions. In this condition, it is better to also use GPS collar on dogs or pets who are spending time outside the house often.

In the past many people lost their pets due to there is no method to track them down automatically but today, we no longer have to experience the fear since GPS collar is a common device that we can get almost anywhere. This technologically advanced devices are placed in your pet’s collar and can be detected by another device called tracker to monitor the position. In situation like hunting or expedition, having GPS collar worn by your dogs will be very helpful, not only for tracking them down.

People with more than one dog may track different things and we are not always in the same position all the time. With a GPS tracker, we will know each one of their positions and in case when the dog is too excited with the game, forgetting about the owner or runs too far, we can pinpoint the location or even command them to go back with the help of built in trainer on their collar which sometimes available from some brands or model.

Depend on the device, some of them can track more than 10 dogs at once, suitable for those who are carrying a huge companion or when hunting with some friends. What we need is only purchasing additional GPS to carry so then we can see each of the force’s places in a single device for better communication. 

About Garmin Astro 320 with 430

If you are often going for a hunt, hiking, or living in a remote area with your dogs, getting GPS collar for each one of them is a wise decision so we can know their whereabouts. When talking about dog GPS devices, our mind instantly recall Garmin because this brand is prominent in its tracking functions which we also have on their wearable fitness devices. They have a wide option to choose and what we love is there are models for every user with different needs.

Garmin itself is one of the leading brands for dog collars and trackers but the reason why users prefer them is due to their reliability and always working at different conditions, depending on your type of activities. However, if you have lots of dogs and often bring them together in the wild for exploring or to hunt, the Garmin Astro 320 and 430 will be a very ideal option. They are a very similar model at the core with the same function but are also different.

As the name suggests, Astro 430 is a higher model and is also more expensive than the little brother but, it is a better overall in capabilities because first, it is suitable for a huge amount of dogs to track at once with up to 20 dogs to detect with its handheld device. Garmin also have another similar model but have special feature as trainer on our Garmin Astro 320 vs Alpha 100 yet, both of these models in our article today are only tracker.

Another part boasted by Astro 430 and Astro 320 to many other GPS tracker out there is their ability to track better due to its additional technology which is utilizing reliable tracking applications especially for users with a huge pack of dogs and living in high latitudes; for both far north and south.

Garmin Astro 320 with 430 Design

When you place the tracker side by side, they are looking like an identical device but different of the color scheme because as you can see, the Astro 320 is prominent in black while the latter is more prominent in orange which covering almost all of the tracker surface. There is a wide screen at the top featured with a control panel below to navigate the device and their model name printed above the display. Depend on the seller, these devices can be sold with their collar or separately.

Garmin Astro 320 with 430 Collar, Distance, and Map

As you may already know, both Garmin Astro 320 and 430 are the tracker so we will need their collar to work as GPS point and lead us track the dog but you don’t have to worry since many sellers also sold them in pair with Garmin T 5 or T 5 mini for smaller dogs. Similar with Alpha 100, Astro 430 is also compatible with TT 15 and TT 15 mini as well as DC 50 the same with Astro 320.

As for those who plan to use DC 50, we need to upgrade our tracker’s software first before fitting the devices together. What you want to keep in mind is their working range will be different for mini collar can only work for up to 4 miles as opposed when using their T 5 which is rated up to 9 miles. In addition, as it has been mentioned above, the Astro 320 is a lower model, working with up to 10 dogs while the latter is more expensive and can track up to 20 dogs.

Both of them are compatible with TOPO maps and optional BirdsEye Satellite to get a reliable imagery of your dogs’ positions. They are utilizing GPS but is better with the GLONASS transmitter mounted on their collars for better tracking in the wild. In comparison with GPS only, using them together will advance your tracking since while the popular GPS is working 95% of the time, due to GLONASS different positioning it can help with accuracy at high latitudes, making them reliable even in challenging environments.

Garmin Astro 320 with 430 Features

Another similar features that we can enjoy with either of these trackers is the water proofing which is great because we never know what’s happening in the wild yet, they are only for some water splash or IPX7 rated and not made to be fully submerged in water. The T 5 collar though, is another story because this collar is made to be very durable as well as can be used wherever the dogs go including when diving up to 10 meters.

Moving further, let’s see another features embedded on your Garmin Astro 320 and 430. We know that running out of battery out there can be very challenging since it means we can’t use the device but there is Rescue mode in both devices and when activated, it will help preserve the battery when life is below 25% which is great to at least give some time to look for our dogs. It also means we can set update rate when using T 5/T 5 mini from 16 hours to 40 hours.

We also love BaseCamp app in both trackers which lets users view and organize their maps, routes, tracks, and waypoints. It is thankfully free and will also allow users to create Garmin Adventure that we can share with other people like fellow dog trackers or friends and family. This app can be used with your computer as well and it will show topographic map date in 2-D or 3-D with contour lines and elevation profiles.

What’s not present in one of them, Astro 320 to be exact is Hunt Metrics Data since it only available in Astro 430 and 900. This feature lets users monitor their dog’s hunting behaviors and patterns to help optimizing their training opportunities since it includes dog’s times, distance traveled and overall scores.


Now, let’s compare Garmin Astro 320 with 430. As you may already know, both of them are an identical tracker at the core since the function and features are the same in either of them with the prominent difference in color scheme and the ability to track the amount of dogs at once; 10 vs 20 with the same GPS collar model. However, in operation, Astro is faster with update rate at 2.5 seconds as opposed to 320 preset at 5 seconds as well as has Hunt Metric Data.

Garmin Astro 320 vs 430

- 2.6" 65K color TFT display.
- Built-in vibration motor to support silent alerts.
- Worldwide basemap with shaded relief.
- Able to track up to 10 dogs simultaneously.
- Expanded dog capability - track up to 20 dogs from a range of up to 9 miles
- GPS/glonass - high-sensitivity GPS and glonass satellite reception has the ability to track in more challenging environments than GPS alone
- Preloaded mapping - includes preloaded topo U.S. 100K mapping and a free 1-year birdseye satellite imagery subscription
- Dimension(inches):2.4 x 6.3 x 1.4. Battery life - up to 20 hours (Astro 430)


All in all, the decision is all yours to make because not all of us will have the same needs so it is best to get the one that fits your activity the most. Both of these trackers are reliable but those who are using more than 10 dogs should get the Astro 430 since not only it can be used with more collars, it also has Hunt Metric Data for better information regarding your dogs’ patterns.