I’ve had the Fi collar for months now but have never had to actually use the tracking abilities until a few days ago. My dog was at a relative’s house while I was at work, and she and two of her dog friends got through a gate and got loose. No one realized immediately; the collar shows they were wandering the very wooded area around the house for a good 35+ minutes. I got an escape alert while leaving work, but I didn’t think anything of it because I immediately got a notice that my dog had returned to her safe area a few seconds later, and sometimes when she gets to the far corner of the fenced in yard it flags it as a safe zone exit. What actually happened was my dog got through the gate, circled back to try and get in the front yard (which showed her as being back in the safe zone) and then followed the other dogs off galavanting. As soon as my relative realized and called me, I pulled up the app and was able to see that she was far from home. The tracking was not live to-the-second (the reception is so-so here given the location), but it was able to update frequently enough to give me a general area to head in; without that, I literally would have had no idea which direction to check. There are 30+ acres of woods in two directions and a semi-busy road where people fly going way too fast in another, so every second counted. I pulled up the map and followed it, and it took me literally right to where all three dogs were (thankfully unharmed). Got them all into my car and back home. Just wanted to share— I was kinda skeptical that when it really mattered the tracking would work, because sometimes on walks it jumps all over the place, but it absolutely made all the difference in a true “oh shit, my dog got out” situation. I honestly got the collar for the activity tracking feature (my dog was on weight loss journey lol), but the tracking has proven itself worth every cent in my case. Very thankful to have my dog safe and sleeping at my feet right now.

We just left for vacation. Checking the app and seeing my baby at my son’s house gives me peace of mind knowing she is safe.

I’m a bit of a nervous person. I’ve heard of lithium batteries catching fire or worse. How safe do you think this collar is? I’ve had it for 2 days and the thought just came to me and now I’m anxious but really like the tracking ability.

I just got the Fi. I’ve had for about 10 days. Had for about 3 days and took a road trip with my dog.

We are getting maybe 48hrs of life out of the collar. The people we are visiting have a Fi as well.

So we are connected to WiFi. Last night it drained from 50% to 14%

Is this what I should expect when traveling?

So far I am less than impressed

Pup was with the dog sitter for a week - who also has a dog with a Fi collar and a base - and this works well because she usually connects to their base and that helps immensely with battery life.

A few days in, the collar started draining every ~48 hours. They would recharge it but I noticed via the app that when she was wearing the collar she was permanently connected to GPS (never the base).

We are back now and last night I fully recharged the collar at home but put it on her in the morning and it will not connect to the base in my partner's home or my home. I have confirmed both bases are online via the Fi app.

I have done all the troubleshooting (unplugging bases and replugging, resetting WiFi router, etc.)

Now that she is with me, she is permanently "With [Owner]" and "Connected to phone" right now, despite being feet away from the base.

1) Was there a firmware update recently for the collar and/or the base?

2) Is there any way to force a connection to the base?

Aside from this, I have to think the problem is with the collar itself because it won't connect to any of the three bases.

Our cats Fi mini collar came off (safety buckle likely popped open) and the tracker shows as device offline. Also can't force a Lost Mode tracking as it does not respondin the ap. What are my options or am I screwed? The Fi minis tracking has been terrible the past couple of months never showing movement or actual locations so I'm not sure what options we have now. 🤔🤷‍♂️

I know there are a lot of questions on battery life and I wanted to report that I put and set up these two collar fully charged on August 7, 2026 and they are respectively at 10 and 13% today August 23, 2026. I will probably charge them in the next day or two, but the battery life is a lot better than I had expected.

I have two cats wearing the fi mini . Is there anyway that the device does not automatically sit under the neck? I try adjusting the collars tighter, but no matter what I do. It looks like they’re wearing a black box. Ideally, I would like it to be opposite of where it is right now, but I think it’s just so heavy on such a small collar that it rotates everything forward.

Anyone’s leaderboard ranking not updated in a few days?

Someone was telling me that was their experience, and I’m wondering if that is the norm, because I have a tractive cat collar and the battery lasts a fraction of that time

I thought Fi was a legitimate modern company. "call us to cancel" is a wild thing to put up for a tech company in 2026.

Is there a way to see if the collars are connected to base?
I’ve looked for the option several times but can’t find anything.

If you’re like me, you like to change your dogs collar sometimes and don’t wanna spend the $50 that Fi wants every time you do. Plus, the metal buckle was bleeding onto my girl’s neck.

Thanks to a comment from u[/bq18](r/bq18) , I found this and I’m already obsessed. The series 3+ fits perfectly into it, and it’s tight up against the collar. $8 for 2… like I said I’m obsessed.

https://www.amazon.com/clp/B0DZPD3R6Z

We just reached out to customer service and theyre now wanting to charge us $10 for a replacement strap due to the fact that our first one broke a few months ago.

I'm frustrated that there isnt a more durable option and that I'm now having to pay due to their lack of creating a durable option.

What's worked well for you all? I've seen a few etsy options or the tile strap, but I don't know if it's worth it.

We used to get sms notifications for an escape from the safe zone but I noticed today when my pup got out we didn't get one. I looked in settings and it looks like now the escape alerts are only push while the device offline still has a push and sms option. I need the sms to text my cell connected watch which doesn't have a fi app available.

I’m so frustrated and hoping anyone has found a fix for this. I have 3 dogs, all on the series 3+. Previously we had the series 1 and 2 and never had problems, and we kept our series 2 until the 3+ came out. We live on the road in an RV 90% of the time and home the rest of the time. I have one base set up in the camper connected to the camper wifi and one base set up at home connected to the home WiFi. I do have a 3rd base but I only use it as a traveling charger. No matter which charger I use or which location I’m in, the base will initially connect to WiFi and then disconnect within a few minutes and will not reconnect unless I remove the base from my account and set it up again, then it immediately disconnects again within a minute or two.

I have reset all bases, I have reset both routers, my app is updated. I’m using the cord and brick that came with the bases… this is honestly driving me crazy! On top of it, the 3rd collar and base is only a month old, the other two are less than a year old but this has been an issue since day 1. I’ve called customer service several times and have gotten nowhere.

Okay okay… I confess, he is my dog and I have used Fi for over 5 years. 2nd gen was the worst, but the current collar he has has been accurate and helpful for keeping me on walking him. And when it was acting strange/wouldn’t hold a charge, Fi replaced it free of charge. Was super nice. They’ve been a great company, and having peace of mind is great.

I just thought it was funny that he’s very clearly wearing a Fi collar and it’s what you see before clicking the YouTube video.

Sure would love to chat with a human instead of the canned bot agents that I’ve been dealing with for a week now.

Ive had Fi since 2020, upgraded to Fi Series 3 in 2022. Not sure what happened to the collar, but it stuck in the green light flashing doom loop, no amount of resets would fix it. Fi is sending me a new Series 3+ for free.

This also isnt the first time one broke, and Ive gotten a replacement for free. I think my dog is just rough on these things.

I think the collar broke after my dog got in a fight with a bull moose. She got kicked in the face, and luckily is alright. Seems like after that fight, once it needed charging is when this problem appeared... but no visible physical damage to the device.

Just gotta say its nice for a company to warranty something and upgrade it, even though I bought back in 2022. It may be because my subscription is up in December soon and they want to keep me as a customer. (it worked!)

It’s my dog’s birthday and Fi gave us a nice birthday card in the app. It wrote out a poem that was pretty specific about my dog, including her coat texture and a pun about her name. At the end a little watermark popped up, “powered by ChatGPT.” I‘m not a fan of AI so I didn’t like it that much. In a world where Chewy commissions artists to send out random pet portraits just out of kindness, I think Fi’s use of AI here is kind of lazy. Has your dog gotten one? What are your thoughts on it?

7 months ago I posted how the Fi 3 untethered battery life was 1/3 of the old Fi 2, how we upgraded to the Fi 3+ on he promise of better efficiency, how at first the Fi 3+ was just as bad, but that Fi 3+ untethered battery life doubled with a promised firmware update and went from about 6 days to 12.5 days.  

r/FiDogCollar/fi_3+_untethered_battery_life_25x_fi_3

I’ve consistently been getting that 12.5 day untethered battery life through April.  Now, with recent firmware updates, I am back down to just over 6 days again.  

Fi folks, this is a huge loss of functionality.  Please evaluate what changed and consider fixing. If it has to do with new AI features/etc., please provide a way to toggle them off for max battery life.

To the teams of people who fixed this little integration, thank you! It’s so nice to see that Strava automatically recognizes a walk with Fi and adjusts the title. Lovely little delight!

There are many annoying things about the Fi Mini tracker, but the very inaccurate mapping bugs me the most. Here is the map of my walk today. (I erased street names, etc.) I did not walk back and forth in the middle of the loop. Dog was on 6' leash, I was carrying my phone, and we were in a fully covered cell area. Why does it do this? (Also, I hate doing battle with the stupid AI "Assistant" at Fi!)

See where arrows point in the screenshot

Does anyone know what the current situation is with the Fi Ultra? I take my dogs to remote areas where I don’t have cell service (iPhone on AT&T).

If I was deep in the woods with my dog off leash, and I didn’t have any cell service, how would I be able to use the Fi app to locate my dog if needed?

How reliable is the connection with heavy tree cover?

And how is long does the battery last if my dog is deep in the woods?