Fi Ultra Satellite Dog Tracker
Fi's newest tracker is built for dogs that wander further than cell service can follow. The Fi Ultra runs on T-Mobile's LTE network for everyday coverage and switches to satellite connectivity through T-Satellite with Starlink when a trail, ranch, or backcountry hike drops off the grid entirely. A universal clip attaches to harnesses, working dog vests, or thick leather collars, no separate charging base required. It's rated IP68 for waterproofing, tested in salt water, and runs 2 to 3 days on a charge, stretching to 5 with power-saving mode turned on. A buzzer built into the device can be triggered remotely from the app to help call a dog back, functioning like a recall whistle with adjustable intensity.

