Paths & Paws
When your dog gets loose on a trail, you need to find them fast. The $30 AirTag on your keychain seems like an obvious solution. Clip it to your dog's collar and use Find My to track them down. Simple, cheap, done.
But AirTags weren't designed for pets. GPS collars exist for exactly this purpose. Before you go cheap, understand what each technology actually does.
Key Takeaways
- 1AirTags don't have GPS - they rely on nearby iPhones to report location
- 2GPS collars provide real location data independent of other devices
- 3AirTags work better in populated areas; GPS collars work better everywhere
- 4For wilderness hiking, AirTags are useless
How AirTags Actually Work
AirTags don't contain GPS hardware. They can't determine their own location.
Instead, they broadcast a Bluetooth signal. When any iPhone running iOS 14.5 or later comes within range (about 30-50 feet), that iPhone anonymously reports the AirTag's location to Apple's servers. You see this location in your Find My app.
This system works brilliantly in cities. Millions of iPhones move through urban areas constantly. An AirTag on a lost item in San Francisco might update every few seconds as phone after phone passes by.
On a trail? The network thins out fast. If no iPhone comes within range of your dog, you get no location update. Your dog could be 100 feet away with no iPhone nearby, and you'd have zero information.
How GPS Collars Work
True GPS collars contain actual GPS receivers. They communicate with satellites to determine position independent of any other device on the ground.
The collar then transmits this position to your phone through cellular networks like Fi and Tractive use, satellite networks that power Garmin and Dogtra, or radio frequencies used by some Garmin systems and Aorkuler.
The key difference: GPS collars know where they are. AirTags only know where they are if someone else tells them.
Trail Testing: The Reality
We attached an AirTag and a GPS collar to the same dog and tracked performance across various hiking environments.
Busy Trailhead (Parking Lot)
At a crowded trailhead parking lot, the AirTag updated every 1-2 minutes thanks to the many hikers with phones passing by. The GPS collar, an LTE-based model, updated every 3-5 minutes. Roughly equal performance in this high-traffic environment.
Popular Trail (Weekend)
On a popular trail over the weekend, AirTag updates came every 5-15 minutes depending on hiker traffic fluctuations. The GPS collar provided consistent updates until cell coverage dropped. GPS collar slightly better overall.
Quiet Trail (Weekday Morning)
A quiet trail on a weekday morning revealed the AirTag's weakness. One update came when a runner passed, then nothing for 45 minutes. The GPS collar maintained consistent updates wherever cellular coverage existed. GPS collar noticeably better.
Wilderness (No Trail, Few People)
In true wilderness with no established trail and few people, the AirTag provided zero updates for the entire 3-hour hike. Completely useless. The GPS collar (LTE model) provided updates until cellular coverage ended, then nothing. Neither technology worked perfectly, but the GPS collar provided data for far longer.
AirTags Fail in Wilderness
Apple explicitly states AirTags are not designed for tracking pets or children. In wilderness settings, this limitation becomes dangerous. Don't rely on AirTags for off-grid hiking.
The Cost Comparison
AirTag
- Device: $30 (one-time)
- Subscription: None
- Battery: User-replaceable CR2032 (~$1), lasts about a year
- Holder: $10-30 for durable collar mount
Over five years, an AirTag runs approximately $45-65 total.
Mid-Range GPS Collar (Fi, Tractive)
Device cost runs $50-150 upfront, with subscriptions of $60-120 per year. The battery is built-in with no replacement cost, and holders are included or integrated. Over five years, expect to spend $350-750.
Premium GPS System (Garmin Alpha)
The handheld unit costs $300-600 and the collar adds $200-400. No subscription required, and batteries are rechargeable. The five-year cost of $500 to $1,000 is a one-time investment.
AirTags win on pure cost. But cost per successful location update tells a different story. In hiking contexts, GPS collars provide far more value.
When AirTags Make Sense
Despite limitations, AirTags work for some situations. Urban dog parks have plenty of iPhones around, so if your dog escapes, updates come quickly. Neighborhood walks benefit from the iPhone density in residential areas that keeps location updates flowing regularly.
AirTags also work well as a backup device. Running an AirTag alongside a GPS collar provides redundancy, and the AirTag might help if the GPS fails near a populated area. Even without active tracking, AirTags serve an identification function: if someone finds your dog, they can scan the AirTag to contact you. For indoor escapes where your dog gets out in a neighborhood setting, AirTag coverage is typically good enough to be useful.
When GPS Collars Are Required
GPS collars justify their cost when hiking takes you beyond cell coverage. Radio or satellite-based GPS systems like Garmin work where nothing else does. Hunting or working dogs that range far from their owner need the reliable tracking that only dedicated GPS provides.
Multi-day backcountry trips demand GPS because you can't rely on random iPhones appearing when you need them. Dogs prone to bolting present another clear case; a dog that runs until exhausted needs real tracking, not crowd-sourced location guesses that may never update. If knowing your dog's location genuinely matters to you, GPS provides that reliability in a way AirTags simply cannot match outside of populated areas.
The Hybrid Approach
Many serious hiking dog owners use both technologies together. An AirTag serves as a cheap backup for populated areas and identification purposes, staying on the collar permanently at minimal weight. The GPS collar functions as the primary tracking device for actual hikes, worn when heading into the field.
This approach costs more than either solution alone but provides genuine coverage across environments. The AirTag handles urban situations and lost-dog identification while the GPS collar delivers reliable tracking in the backcountry.
What About Samsung SmartTags?
Samsung's SmartTags work similarly to AirTags but use the Galaxy Find network instead of Apple's.
The practical difference: fewer Samsung phones exist than iPhones, especially in the US. The network is thinner, meaning less reliable updates.
For hiking, SmartTags share the same core limitation as AirTags. They have no GPS and depend on nearby phones.
Battery and Maintenance Comparison
AirTags offer exceptional convenience in this category. The battery lasts about a year and is user-replaceable with a standard CR2032 coin cell. They're water resistant though not fully waterproof, and require no charging whatsoever.
Cell-based GPS collars vary more widely. Battery life ranges from days to months depending on the model and tracking frequency settings. They require regular charging and usually offer better water resistance than AirTags. Pack a charging cable on long trips.
Satellite and radio-based GPS collars demand the most attention. Batteries typically last 20-80 hours of active tracking, requiring charging before each use. These systems generally feature the most rugged construction, but remember that the handheld unit also needs charging alongside the collar itself.
Always Test Before Real Trips
Whatever system you choose, test it on local trails before depending on it for a backcountry adventure. Verify coverage, practice the app, and confirm everything works as expected.
The Bottom Line
AirTags are convenient, cheap, and better than nothing. For daily neighborhood activities, they provide reasonable security at minimal cost.
For hiking, especially beyond popular trails, AirTags fail when you need them most. GPS collars cost more but deliver reliable location data independent of random iPhone proximity.
Your decision depends on where you hike. For mostly populated trails, an AirTag may be sufficient. Mixed environments warrant a GPS collar. Wilderness hiking makes a GPS collar a must, preferably a satellite or radio-based model that doesn't depend on cellular coverage.
Don't let cost fool you into a false sense of security. A $30 AirTag that can't find your dog is worthless. A $150 GPS collar that can is priceless.
Frequently Asked Questions
Kelly has logged over 5,000 trail miles with his dogs across the American West. He specializes in backcountry expeditions and gear testing for large breeds.