Activate & Attach Your Ultra

July 07, 2026 20:28
Updated

If you are a current or a new member, you can learn how to activate and attach your Fi Ultra using the steps below!

New Member Activation Flow
Setting Up Your Profile
Activating Your Ultra
Existing Member Activation Flow
Attaching Your Ultra

New Member Activation Flow

If you are brand new to Fi and don't have a profile, we recommend starting here.

Setting Up Your Profile

Before starting, ensure that you have your Fi App open. Additionally, please keep your Ultra tracker, charging cable, and adaptor nearby.

Once you are ready, tap Continue in the app

Get Started highlighted on the app.png

Next, you'll be prompted to enter your email address, create a password, and enter your name and phone number. Your phone number will be used for account verification purposes and future alert notifications.

Enter phone number onboarding.png

After inputting your phone number, you'll receive a text message to verify your number. Type in the verification code and tap Next

verification number sent to phone.png

From here, enter your pet's name and tap Continue

Dog name selector.png

Select your pet's breed - you can choose from pure or mixed. If you aren't sure, you can make your best guess.

Select dog breed.png

After selecting a breed, enter their birth date and tap Continue

Enter cat birth date.png

Select their sex and weight, then tap Continue

Select pet weight.png

Now you can choose your pet's username and photo. If the username is already taken, you will receive an error message. After selecting a username and photo, tap Continue

Screenshot 2025-07-16 at 6.27.27 PM.png

Next, you'll be prompted to input a step goal based on their breed. To choose a target step count, tap Continue

Step Goal splash page.png

Then you can choose the default step count or change it by tapping the plus or minus signs. Once complete, tap Continue

At this point in the process, you'll receive verification that your profile is successfully created. Now you can start the steps to activate your Ultra. To continue, tap Next

Activating Your Ultra

To continue with activation, press Next

Then, confirm that you are setting up a Fi Ultra and tap Start

Setting up your device in the activation flow.png Set up your Fi Ultra screen.png

Next, plug in your Ultra to continue with the process and press Continue

Plug in your Fi Ultra.png

You will be prompted to enable Bluetooth by pressing Allow. Once Bluetooth is activated, tap Continue

Allow connection to Bluetooth during activation flow.png Bluetooth is activated Fi Ultra.png

Once your Ultra is found, you'll be prompted to Connect to Wi-Fi

Looking for your Fi Ultra during Activation Flow.png We found your Fi Ultra during Activation Flow.png

Your Fi App will search for Wi-Fi networks. Once yours is located, tap on your Wi-Fi network name and enter your Wi-Fi password.

After inputting your Wi-Fi information, you'll be prompted to enable location services. This is required for the Fi App to work properly. Tap Allow While Using App and then tap Save

Now, you'll receive a confirmation that your Ultra is set up. From here, you'll learn how to attach the Ultra to a collar/harness/vest by tapping Continue

Fi Ultra is activated confirmation.png

Existing Member / Pet Profile Activation Flow

If you already have a Fi tracker on your pet, such as a Series 3, Series 3+, or Mini, you can activate your Ultra in the Fi App.

First, tap your pet's profile picture in the lower right corner. Once you are in the profile, tap the 3 stacked lines to open the Menu button.

Fi app Profile tab showing a pet profile page with photos grid, follower stats, and the menu icon highlighted

On the Menu page, select Activate device

Activate Device highlighted in flow.png

Then, confirm that you are setting up a Fi Ultra. Then, tap Start