Short Answer

Pick Fi Series 3 if you want the longest battery life and the cleanest app experience for everyday US use. Pick Tractive if you travel internationally or want the most granular real-time tracking refresh rate. Either way, pairing your GPS collar with a reliable hands-free leash, like the iYoShop Hands-Free Dog Leash available on Amazon, makes everyday walks safer and easier to manage.

Fi Series 3 GPS collar on a light surface

Want a hands-free leash to go with your tracker?

The iYoShop Hands-Free Dog Leash ships from Amazon, no subscription required. Order it once, try it on your next walk, and return it within 30 days if it's not the right fit.

Buy on Amazon

Side by Side

Fi Series 3Tractive GPS LTE
Battery lifeUp to 3 months2 to 7 days
Real-time tracking refreshEvery 2 to 15 secondsEvery 2 to 5 seconds
Works internationallyUS only150+ countries
App qualityExcellentGood
Subscription cost$99-$189/year$96-$156/year
Collar durabilityAluminum hardwarePlastic
Price up-front$149$50-$70

Where Fi Wins

Battery life. Three months versus five days is not a small difference. For pet parents who forget to charge things, Fi is dramatically less hassle. The app is also the best in the category, and the aluminum hardware feels genuinely durable after a year of rough outdoor use.

If you charge your dog's collar the way you charge your phone, every night, either works. If you want to charge it four times a year, Fi is the only answer.

Where Tractive Wins

International coverage. Tractive's SIM works in 150+ countries without additional fees, which matters if you travel, live near a border, or take international holidays with your dog. Fi is US-only.

Real-time refresh rate is also slightly faster on Tractive, which can matter in an active escape scenario.

Complement your tracker with a hands-free leash

Whichever GPS collar you choose, the iYoShop Hands-Free Dog Leash keeps your hands free while your tracker does the monitoring. One-time purchase, ships with Prime delivery, and available right now on Amazon.

Buy on Amazon

The Subscription Reality

Both GPS collars require cellular subscriptions. Budget $100 to $190/year on top of the device cost. If you're not willing to pay the ongoing subscription, neither collar works as a real-time GPS. An AirTag is a cheaper alternative for low-stakes indoor tracking, though it lacks live updates. Keep in mind these trackers are sold directly by their brands and not through Amazon, so check each brand's site for current hardware pricing.

Who Should Pick Which

Pick Fi if:

You live in the US, you want the longest battery life possible, and you value app quality. The best set-and-forget GPS collar for daily use.

Pick Tractive if:

You travel internationally or need the fastest real-time refresh. Also the cheaper device upfront if total cost matters most.