Fi Ultra Pet Tracker Uses T-Mobile's Starlink Satellite Service for Nationwide Coverage

Thu, 09 Jul 2026 00:00:00 +0000

Fi’s New Ultra Tracker Keeps Dogs Connected Beyond Cell Tower Range

Fi has launched a new pet tracker called the Fi Ultra that leverages T-Mobile’s T-Satellite with Starlink service, enabling dog owners to track their pets anywhere in the United States — even deep in the backcountry where cell towers don’t reach.

The device automatically switches between LTE when available and T-Mobile’s satellite network when cell coverage drops, providing continuous location data without any manual intervention from the owner. For adventurers who take their dogs hiking, camping, or exploring remote areas, this means never losing sight of a four-legged companion no matter how far off the grid they wander.

How It Works

The Fi Ultra is built around T-Mobile’s T-Satellite service, which uses SpaceX’s Starlink satellite constellation to deliver connectivity. The tracker seamlessly transitions between standard LTE networks and satellite coverage, ensuring owners always know where their dog is — whether the pet is in a densely populated city or a remote mountain trail.

However, the always-on GPS tracking that makes this possible comes with a trade-off. While the company’s Fi Series 3+ devices can last anywhere from two weeks to three months depending on the dog’s activity level, the Fi Ultra’s battery life is approximately two days per charge. For owners who prioritize peace of mind on outdoor excursions, the more frequent charging routine is likely a worthwhile compromise.

Smarter Training and Recovery Features

Beyond tracking, the Fi Ultra includes a “callback” training system that uses sounds and vibrations to encourage dogs to return to their owners on command. If a dog does wander out of sight, owners can trigger “Lost Mode” from the Fi app to activate heightened tracking sensitivity.

A distinctive feature called “Search Party” can enlist nearby Fi users to help detect a lost dog’s tracker signal when Lost Mode is active. This community-driven approach could prove invaluable for quickly locating a pet that has bolted into the woods or become disoriented in unfamiliar terrain. Fi has also announced plans to roll out Safe Zone boundary alerts that trigger sounds and vibrations when a dog leaves a designated area.

Fi says the Ultra is compatible with most standard collars and harnesses, making it easy to integrate into a dog’s existing gear.

Pricing and Availability

The Fi Ultra is priced at $199 for new members, plus a $20 activation fee and a subscription costing $189 per year. Existing Fi customers who already have a membership for the Series 3+ or Mini devices can add the Fi Ultra to their current subscription for $299.

The device represents a meaningful step forward in pet tracking technology by eliminating the coverage gaps that have traditionally limited GPS trackers to areas with cellular service. As satellite-to-phone connectivity continues to expand through partnerships like the one between T-Mobile and SpaceX, pet owners may soon have even more options for keeping tabs on their animals from virtually anywhere.

Photo by RebeccasPictures on Pixabay

Pet Tracker on Know the Tech

Fi Ultra Pet Tracker Uses T-Mobile's Starlink Satellite Service for Nationwide Coverage

Fi’s New Ultra Tracker Keeps Dogs Connected Beyond Cell Tower Range

How It Works

Smarter Training and Recovery Features

Pricing and Availability