The Smartest Dog Collar Ever Built

Five Stars

It feels like it’s out of a James Bond movie

REX, RAMBO’S DAD
GPS Satellites
An icon of a radar screen

GPS tracking

Fi uses three constellations of satellites to maximize the tracking speed and accuracy of the Fi Collar. GPS accuracy can get as accurate as 7ft radius in open sky.

A dog connected to a cell tower
An icon of a cell tower

LTE-M network

Fi is the first tracking collar to use the LTE-M cellular network to communicate GPS information.

LTE-M is a new technology for low power, long distances communications. LTE-M signal reaches about 30% farther than 3G/4G/5G/LTE networks.

Five Stars

The Longest Lasting Tracking Device on the Market

Forbes Magazine
An alert that a dog has escaped
An icon of an active geofence

Escape detection

The most important factor in a dog’s recovery is the speed at which you are notified of the escape.

Fi uses proprietary algorithms to detect when your dog escapes from your backyard.

It is the fastest, most accurate way to be notified when your dog escapes and to find your dog after an escape.

“Got to test ours out the other day when our husky opened the gate and ran to the neighbors while we were gone! Updated my dad on my phone while I tracked him on my girlfriends, had him home within 5 minutes! Thankful for Fi!”

Five stars
JESSE, RIVER’S DAD
Various weather conditions
An icon of a battery

Smart Power Management

Low power WiFi integration directly into the Fi module allows you to connect to your home WiFi network to save battery and improve accuracy.

The Fi Collar is ‘smart’ and will dynamically connect to Wifi Access Points or local Bluetooth beacons, such as your phone or the Fi Charging base, to save energy and maximize battery life.

These signals are also leveraged in our escape detection engine. Meaning that if your dog ever gets out, the Fi Collar will use all network signals to provide the fastest and most reliable notification of their escape.

BATTERY LIFE VS. OTHER TRACKERS

Vastly improved battery performance

Battery LifeFi Series 2Whistle Explore/Go3G CollarsWhistle 3, Link, Tractive
Dog at home onlyWiFi ModeUp to 3 Months20 days - Explore
15 days - Go
2 weeks
Walks outside homeWiFi & GPS/CELLULARUp to 2 Months2-5 MIN REFRESH10 days - Explore
5 days - Go
2 weeks
Active dogsUsing GPS only & no WiFiUp to 3 weeks2-5 MIN REFRESH5 days - Explore
3 days - Go
2 weeks
Lost Dog ModeLearn MoreUp to 2 days1 min refresh9 hours
Explore & Go
6.5 hours1 min refresh

Dog at home onlyWiFi Mode

Fi Series 2
Up to 3 Months
Whistle Explore/Go
20 days - Explore
15 days - Go
3G Collars
2 weeks

Walks outside homeWiFi & GPS/CELLULAR

Fi Series 2
Up to 2 Months2-5 MIN REFRESH
Whistle Explore/Go
10 days - Explore
5 days - Go
3G Collars
2 weeks

Active dogsUsing GPS only & no WiFi

Fi Series 2
Up to 3 weeks2-5 MIN REFRESH
Whistle Explore/Go
5 days - Explore
3 days - Go
3G Collars
2 weeks

Lost Dog ModeLearn More

Fi Series 2
Up to 2 days1 min refresh
Whistle Explore/Go
9 hours
Explore & Go
3G Collars
6.5 hours1 min refresh
A dog wearing a Fi collar at night
A small light icon

LED light

Fi has a built in LED light that can be customized to your pup's favorite color for added visibility in low light situations.

Learn more about the collar →

Try Fi risk free.

  • Free Shipping
  • 1 Year Warranty
  • 30-Day GPS Trial