Fi Ultra Starlink Pet Tracker Bleeds Battery Fast in Test

Fi Ultra Starlink pet tracker can keep reporting a lost dog’s location after LTE disappears, but early testing found the satellite safety net comes with a hard battery tradeoff.

That matters most for owners who take dogs into remote trails, rural properties, campsites, and other cellular dead zones. The $199 Fi Ultra is the first Starlink-enabled pet tracker available to buy, according to The Verge, using T-Mobile’s T-Satellite direct-to-cell service and SpaceX’s Starlink satellites as a backup when terrestrial coverage drops.

Why dog owners should care about the Fi Ultra Starlink pet tracker now

Most GPS pet trackers have a hidden failure point: GPS can estimate where the dog is, but the tracker still needs a network path to send that location back to your phone.

In a neighborhood with LTE, that’s usually fine. In a remote area with no signal, the map can go quiet at the exact moment the tracker matters most. Fi Ultra attacks that specific failure case.

Built to fit “adventure dogs of any size,” according to the company.

The product pitch is narrow, but real. Fi Ultra is for dogs that leave ordinary network coverage, not for every dog that walks around a city block.

The costs also make that clear:

• Device price: $199
• Activation fee: $20
• Annual subscription: $189
• Existing Fi subscription add-on: $299 flat fee, according to The Verge

The catch arrives quickly. The Verge’s early testing found battery life weak by pet tracker standards. Fi rates the device for two days, and a 30-minute live tracking session connected to Starlink satellites drained almost 20 percent.

That’s the deal: more coverage, more charging.

How Fi combines GPS, LTE, and Starlink when a dog leaves cell range

Fi Ultra does not use Starlink to “find” the dog in the way GPS does. The tracking chain has three jobs.

• GPS: Estimates the dog’s location.
• LTE: Sends that location when cell service is available.
• T-Satellite with Starlink: Sends the location when LTE is unavailable.

That distinction matters. Starlink is the backup communications path, not a GPS replacement.

What happens when LTE drops?

Fi says the tracker prioritizes terrestrial cell towers. If even one bar of LTE is available, that can be more stable than satellite. When LTE disappears, the tracker can automatically fall back to T-Mobile’s T-Satellite-branded direct-to-cell service, which taps SpaceX’s low Earth orbit Starlink satellites.

The owner should not need to flip a setting in the app. The failover happens in the background.

Coverage is described as available anywhere in the US through this Starlink-backed path. That makes the Fi Ultra Starlink pet tracker most relevant for owners who regularly hit cellular dead zones, rather than those who stay inside dense network coverage.

For adjacent XOOMAR coverage on how Starlink is being pushed into more consumer-facing use cases, read Half-Price Starlink Discount Tests Memphis' AI Patience.

What makers changed from standard GPS and LTE dog trackers

Standard pet trackers typically mix short-range connections, GPS, and LTE. Fi Ultra adds a satellite-backed route for when LTE is gone.

That extra route changes the hardware profile.

Fi Ultra includes:

• Always-on, dual-band GPS
• LTE cellular connectivity
• Bluetooth
• Wi-Fi
• 513 mAh battery
• USB-C charging
• 75mm × 40mm × 25mm body
• 68g weight
• IP68 and IP66K ratings, including protection against dust and water ingress, with saltwater included in The Verge’s summary
• Vibration motor and speaker for Fi’s shock-free Callback training system

The tracker is designed to clip onto a dog collar or harness the owner already uses. The Verge found it easy to attach to Gus’ collar using a spring-mounted clasp, but also noted the size issue. It looked large on Gus, an 80-pound wirehaired pointing griffon, and The Verge said “dogs of any size” felt like a stretch.

Fi Ultra versus Fi’s regular trackers

The Fi Ultra Starlink pet tracker gives up endurance for coverage redundancy. That’s not a small trade. Battery limits can define whether a gadget feels practical or fussy, a theme XOOMAR has also tracked in Battery Rule Ends Nintendo Switch Sales in Europe in 2027.

Gus the griffon showed the promise, and the lag

The Verge’s photos show Gus, the wirehaired pointing griffon, modeling the Fi Ultra while overlooking Charleston Harbor. The functional test happened about an hour away near the Francis Marion National Forest in South Carolina, where LTE drops off.

The test simulated a lost-dog emergency using Lost Mode, which increases radio activity to track in real time rather than checking in periodically.

When connected to the Starlink-based T-Satellite network, shown by a satellite icon in the Fi app, location updates arrived about every 2 to 3 minutes. That was roughly the same interval The Verge saw on 1 bar of LTE in a neighborhood test.

Two to three minutes is useful. It is not instant.

During the 30-minute live tracking session, The Verge also saw a couple of reconnection delays where the tracker failed to update location for almost 5 minutes. Fi told The Verge this can happen because the tracker is changing satellites while also trying to acquire a terrestrial signal, since even weak LTE can beat satellite for connection stability.

That’s the practical lesson. Satellite fallback reduces the odds that a tracker goes totally dark, but it does not turn pet tracking into a live video-game minimap.

Why battery life is the biggest Starlink pet-tracking tradeoff

The battery story is the clearest reason many dog owners should think twice before buying.

Fi rates Ultra for two days on a charge. The Verge said it “barely got the promised two days” during a week of testing, with daily charging needed after a long walk and every-other-day charging during less active use.

Fi explained the drain this way:

“added power cost of supporting satellite connectivity on top of cellular, plus more frequent high-accuracy location updates.”

That explanation tracks with the design. Always-on dual-band GPS, LTE, Wi-Fi, Bluetooth, and satellite fallback all fight for power. Lost Mode makes that worse because it pushes the tracker to report more aggressively.

The device charged in under 2 hours over USB-C, according to The Verge. That helps. It does not erase the ownership burden.

XOOMAR analysis: Fi Ultra works best as a trip-specific safety device, or as an add-on to another Fi tracker, rather than as a forget-it-and-charge-it-next-month collar. The Verge made a similar practical point by noting that Fi’s other trackers last several weeks and include more health, sleep, and behavior features.

Who should buy Fi Ultra, and who should wait

Buy Fi Ultra if your dog regularly goes places where LTE disappears. The strongest use cases from the supplied reporting are remote hikes, camping, rural properties, and areas where a dog could run beyond cell coverage.

Wait, or compare carefully, if your dog mostly stays in urban or suburban areas with strong cellular service. In that case, the Fi Ultra Starlink pet tracker may solve a problem you rarely have, while adding a charging routine you’ll feel every week.

The best buying test is simple:

• Coverage: Do you actually spend time in LTE dead zones?
• Behavior: Is your dog an escape risk in those places?
• Battery tolerance: Are you willing to charge daily after active use?
• Cost: Does $199, plus $20 activation and $189 per year, make sense for occasional satellite backup?
• Setup: Would pairing Ultra with an existing Fi tracker give you better everyday battery life and remote-trip coverage?

Fi Ultra is an important step for pet safety tech because it brings direct-to-cell satellite backup to a device outside the phone category. The next thing to watch is not whether Starlink can help locate a dog beyond LTE. The Verge’s test suggests it can. The real question is whether Fi can improve endurance and reconnection behavior enough for owners to trust it when the dog is gone, the trail is empty, and the battery icon matters as much as the map.

Key Takeaways

• Fi Ultra targets a real failure point for dog owners who travel beyond LTE coverage.
• The Starlink backup could help in remote trails, rural properties, campsites, and other dead zones.
• Early testing suggests the extra coverage comes with a significant battery-life tradeoff.