Garmin Alpha 300 Tracking & Training System

The Alpha 300 + TT25 — Garmin’s best tracking and training system

The Garmin Alpha 300 with TT25 collar is the current top of the Garmin dog tracking lineup, and the jump from the previous generation is significant. The handheld nearly triples the battery life of the Alpha 200 — up to 55 hours on a single charge — the screen is brighter, maps load faster, and USB-C charging replaces the old proprietary connector. The TT25 collar brings a redesigned form factor that fits both large and small breeds, Dynamic Tracking to extend battery life automatically, and seven customizable LED beacon colors for low-light visibility. If you run hounds, wide-ranging pointers, or multiple dogs in remote country, this is the system to run.

Track up to 20 dogs from up to 9 miles away

The Alpha 300 monitors up to 20 dogs simultaneously on a vivid 3.5” touchscreen with a 2.5-second update rate. On-point and treed alerts fire independently for each dog the moment it happens — you don’t have to be toggled to a specific dog to get the alert. When you’re running two or three dogs in heavy timber, that independence matters. The handheld stores information for up to 250 collars, so swapping collars in the field requires no re-pairing.

The TT25 collar tracks up to 9 miles when paired with the Alpha 300 and works alongside your existing collars on the same handheld. You can expand the system one collar at a time as your kennel grows without replacing the handheld.

Compatible collars: The Alpha 300 works with the full Garmin collar ecosystem. Pair it with the included TT25 for the complete feature set — Dynamic Tracking, LED beacon lights, and Wi-Fi auto-updates. It also pairs with TT15, TT15 Mini, TT15X (track + train), T5, T5 Mini, T5X (track only), and TT10 collars you may already own. If you’re expanding from an existing Garmin setup, your current collars connect directly with no additional hardware.

The TT25 collar — redesigned from the ground up

The TT25 is thinner and lighter than the full-size TT15 while still hitting the same 9-mile tracking range. The universally sized form factor fits large breeds and small breeds on the same collar — one size works across your whole kennel. The GPS flex band is user-replaceable with a standard Phillips-head screwdriver, no specialized tools required.

Dynamic Tracking automatically detects whether your dog is running, stopped, or kenneled and adjusts the GPS update interval accordingly, extending battery life without any input from you. When the battery does run low, it’s user-replaceable in the field. The TT25 also supports Wi-Fi for automatic software updates whenever the collar is charging and connected to a network — no manual update process.

For training, the TT25 delivers 18 levels of stimulation, tone, and vibration — all controlled from the Alpha 300 handheld. LED beacon lights are remotely controllable from the handheld in seven colors, useful for tracking dogs at dawn, dusk, or in the dark, and as a road warning if a dog wanders near traffic.

55-hour battery — the biggest upgrade from the Alpha 200

The Alpha 200 handheld ran roughly 18 hours. The Alpha 300 runs up to 55. On a multi-day hunt that’s the difference between carrying a backup battery as insurance and actually needing one by day two. The battery is user-replaceable in the field — if the main pack runs down you can swap without tools and keep hunting.

Better screen, faster maps, USB-C

The 3.5” touchscreen is readable in direct sunlight and glove-friendly. Map colors are noticeably brighter than the Alpha 200 and map loading — a consistent complaint about earlier Alpha models — is significantly faster on the 300. Preloaded TopoActive maps come standard with a built-in 3-axis compass and barometric altimeter. An optional Outdoor Maps+ subscription adds nationwide satellite imagery and premium topo layers delivered wirelessly over Wi-Fi. A microSD slot handles additional map storage. Charging and data transfer are both USB-C.

Hunt metrics, group management, and Garmin Explore

Hunt Metrics tracks each dog’s distance, speed, and behavioral patterns across the hunt — useful for managing conditioning in a working kennel over a full season. Group Management lets you organize dogs and hunting partners into presets so setup at the truck takes seconds. Everything syncs to the Garmin Explore app, where you can review track history, manage waypoints, and back up device settings from your phone.

Specs & features

What’s in the box

• ✓Alpha 300 handheld with rechargeable lithium-ion battery pack
• ✓Belt clip
• ✓AC adapter
• ✓Type-A to Type-C USB cable
• ✓TT25 dog collar with rechargeable Li-ion battery pack
• ✓1” orange collar strap
• ✓Charging clip
• ✓USB-C cable
• ✓Short and long plastic contact points with wrench
• ✓Documentation