Garmin Alpha LTE Dog Tracker

A rugged LTE tracker that shows your dog in the Garmin Alpha app on your phone, and can also pair with Garmin’s radio handhelds.

Who it suits

Hikers, skijorers and hunters who want very frequent location updates on a phone, and who may add a Garmin handheld later.

Key facts

• Uses LTE cellular to show your dog’s movements on a compatible smartphone; a subscription plan is required (Garmin)
• LTE coverage on the AT&T and T-Mobile networks; range is within LTE coverage (Garmin)
• Battery in standalone use: 11 hours at 10 second tracking, 18 hours dynamic, 45 hours at 2 minute tracking; longer in companion mode (Garmin)
• Water rating 1 ATM (10 meters); LED lights; rechargeable lithium-ion battery with a charge clip (Garmin)
• Can pair with select Garmin dog tracking handhelds and collars (sold separately) to use LTE and VHF signals together (Garmin)

What reviewers say

Treeline Review: Jae Thomas tested it for Treeline Review (updated August 2026) and named it best for fast location updates, a middle ground between the cellular trackers and the radio-based Garmin Alpha T 20. Thomas liked the very fast updates, the beacon light and that it fits one-inch prong and hole collars. The battery is short next to the clip-on trackers, it needs a separate clip to charge, it has no health tracking, and it does not fit plastic buckle collars. Treeline Review does not say whether the unit was a maker sample.

We did not test it ourselves.

Pros

• Very fast location updates
• Works with Garmin handhelds too
• Built-in lights

Cons

• Subscription required
• Battery measured in hours, not weeks
• Does not fit plastic buckle collars, per Treeline Review

Good to know

• Charge it before every outing; battery life drops at faster update rates (Garmin).
• It needs LTE coverage unless paired with a Garmin radio system; keep an ID tag on your dog.
• Check the collar fit and skin after long days out; ask your vet about any sores.