Garmin TT15 vs TT15 Mini Collar: Comparison, & Reviews


It seems like a commonly asked query, when comparing the Garmin TT15 vs the TT15 Mini – what should you be aware of?

What are the main differences and similarities between the two?

Which collar might be better for different dogs and the preferences of different owners?

Let’s dig in deeper and find those things 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 TT15 vs TT15 Mini Collar Comparison: Differences & Similarities

If you prefer, you can go straight to viewing the TT15 collars here:


The reviews for the compatible handhelds can be read here:


Garmin TT15 vs TT15: Which One Might Be Better?

It really depends on the size of collar device and strap you want, and the range and battery life.


You might get the TT15 if:

You have a regular to larger sized dog

You want a longer range from collar receiver to handheld device

You want a slightly longer battery life/charge

You want a slightly thicker collar


You might get the TT15 Mini if:

You have a small sized dog, and you want a more compact device

You’re OK with a shorter range from collar receiver to handheld device

You’re OK with a slightly shorter battery life/charge

You’re OK with a slightly thinner collar


Garmin TT15 vs TT15: Differences

The main differences are:

The unit dimensions of the TT15 are bigger at 3.5″ x 1.75” x 1.85″, compared to the TT15 Mini unit dimensions of 3.1″ x 1.8” x 1.4”

The TT15 weighs slightly more at 10.0 oz (284.0 g) total weight (with collar), compared to the TT15 at 7.5 oz (212 g) total weight (with collar)

The battery life of the TT15 is about 20-40 hours, whilst the battery life of the TT15 Mini is about 16-30 hours

The range of the TT15 is about 9 miles, while the TT15 Mini range is about 4 miles

The TT15 takes a 1 inch collar strap whilst the TT15 mini takes a 3/4 inch collar strap


Garmin TT15 vs TT15: Similarities

Both have rechargeable lithium ion batteries

Both have a USB interface

Both have a water rating of 1 ATM (up to 10 meters water resistant)

Both fit a minimum of a 9.5” (24 cm) in circumference neck size

Both have a high-sensitivity GPS/GLONASS receiver

Both have a GPS antenna

Both have stimulation, vibration and tone training options

Both have in built beacon lights

Both have rescue mode – allows you to conserve the life of the battery when it hits 25%

Both have MURS Frequency mode

Both are only compatible with the Astro® 430, Astro 320 and the Alpha® 100. Both can be configured for operation with either handheld but cannot be tracked simultaneously by both the Astro 430 and 320

Both have replaceable collar straps


Garmin TT15 vs TT15 Mini: Reviews

Garmin TT15

View On Amazon

These are some of the features of the TT15 and TT15 Mini.

For a full breakdown of the similarities and differences between the TT15 and the TT15 Mini, see the buyer’s guide below this review.



The Garmin TT15 is a collar receiver device and collar strap that attaches around your dog’s neck, and connects remotely to some of the Garmin handheld models which control the function of the collar device or provide tracking for it 

The TT15 is a 2 in 1 tracking and training collar (compared to the T5 for example which is a tracking only collar)

It has a top-mounted, high-sensitivity GPS/GLONASS receiver

It is compatible with the Alpha 100, Astro 320 and Astro 430 handheld models

It uses 18 different levels of static stimulation

There is the option for either continuous or momentary (nick) stimulation

The TT15 collar receiver allows you to make quick changes (low, medium or high) within a predetermined stimulation level (1-6), whereas linear stimulation allows progressively more stimulation from levels 1 to 18. 

Because you have low through to high power output options, it’s suitable for soft through to harder temperament dogs

With the Alpha 100, there are also audible tone and vibration training options

The Astro 320 and 430 models allow tracking ONLY (and not the above training options)

The TT15 is water resistant to 10 meters

There’s the ability to remotely operate the LED beacon lights, built in to the dog device, to help locate your dog in low-light conditions



The major drawback for some people will be the cost. But, apart from that, it really is a high functioning and high performing collar




Garmin TT15: Buyer’s Guide

What Is The Garmin TT15 Designed For?

The TT15 is compatible with 3 Garmin handhelds.


Using With The Alpha 100

You can use both tracking and training (training modes include static, vibration and tone).


Using With The Astro 320

Tracking only.


Using With The Astro 430

Tracking only.


Who Might The Garmin TT15 Be For?

People who want to use the Alpha 100, Astro 320 and Astro 430 model handhelds

Particularly hunters, competition/sporting dogs and trainers

People who want to track and train their dog/s


Who Might The Garmin TT15 NOT Be For?

People who want to use a handheld other than the 3 listed above

Less serious owners who want a more basic and less expensive tracking or training collar system


What Do You Get In The Garmin TT15 Kit?

TT 15 dog device with rechargeable lithium-ion battery, or you get the TT15 Mini device with the Mini Kit

1-inch thick collar strap

Charging clip

AC adapter

Vehicle power cable

Contact point set with wrench



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

You can read more about the best remote dog training collars in this guide.



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