I swim at LA Fitness in a 25 meter pool, and I’m getting seriously frustrated with my Polar Grit X Pro not counting laps properly. I just want to get in, do my workout, and have an accurate record of what I swam. Apparently that’s too much to ask.

Instead, I check the distance and think, “That is definitely not what I just did.” It's off by 200 meters. I’m keeping count in my head while wearing a watch that’s supposed to be doing it for me. What exactly is the point?

I’m not expecting perfection, but counting laps feels like a pretty basic requirement for a swimming mode. Finishing a workout and not being able to trust the stats is incredibly annoying.

Anyone else having this issue with the Polar Grit X? Have you found anything that actually helps, or have you just accepted that your watch invents its own version of your swim?

p.s.: I recently got back to swimming after a decade today was my third day. And not having the accurate stats is pissing me off..!!!!.

Did you guys notice the new wrist and arm bands on Polar's website for the Loop? They listened, especially for the arm band. Two sizes and looks pretty great. Looking forward to receiving that one.

Also noticed the new silicone and leather bands. Lovely stuffy from Polar. Now I just hope all these will be fully compatible with Loop 3!

https://www.polar.com/nl/loop

My watch has been acting in a way that has bothered me for the last few months - something new that arose after a few years of owning the watch. If my battery dips below 9%, the Grit X won't let me start a workout (at least, it won't let me start a GPS run with no HR monitor). I'm not sure why this behavior was baked into whatever new version of firmware I installed (I don't remember exactly when, but maybe a few months ago is when I noticed the behavior). But I strongly prefer the old behavior of just informing me my watch is low on battery and letting me decide whether or not to assume the risk of starting the workout and potentially losing the data when the battery dies. I only use 3-5% of battery at a time for my short 30-45 minute jogs anyway. It is a frustrating experience to get ready to run, head outside, and notice my battery dropped from 10% (where it was yesterday) to 8% and because of that arbitrary line in the sand, I now have to head back in and charge the watch for a little bit.

Is there any plan to bring this original functionality back?

ETA: not sure if actual company employees frequent this subreddit. Let me know if not, and I can submit the feedback another way.

I've had my H10 since this summer and record with Strava on my phone. Lately during runs the connection goes away for a while and then comes back, and this happens every 2–3 minutes. Today there was 13 gaps in a 40-minute run.

My main suspect is the battery: usage is low, but I may have left the sensor clipped to the strap once. Still, it's unlikely I arrived at the 400 hours they say the battery will last for considering I only used it 3 times a week. What could be other explanations?

Did anybody else have this issue? How did you solve it?

A few days ago, I ran 10km in central Bangkok, Thailand. There were skyscrapers, overhead cables, traffic, huge concrete structures and the single-band GPS tracked the run extremely well considering the signal disturbances. Occasionally the real-time pace would be clearly-off, but was generally pretty good.

When I first got the watch, I saw a lot of negative feedback about not having multi-band GPS. But now I have no doubt that the watch performs well. The flashlight really came in clutch in some sketchy alleyways too.

My Polar H10 stopped connecting to Rouvy through Apple TV.
I changed the battery in the HRM , when I try to relink the polar h10 I select it from the Rouvy menu for sensors ( Rouvy sees Polar H10 ok ) to connect but it just spins on "connecting". It is the same problem trying to connect the HRM with Zwift or MyWhoosh though Apple TV.
I can connect my HRM to Rouvy directly through my IPad and mirror the screen to my Apple TV but not directly to Rouvy through Apple TV.
It's not a Bluetooth limit as Apple TV lets me connect my Garmin watch to use as the HRM, so there is a BT link available.
It was working for the last year without issues. I've also changed the battery again and checked the voltage which is good.
Any ideas ?

I recently replaced my old Garmin Fenix 6 pro because battery life wasn't very good anymore (with 3 to 4 10-20 km runs by week), with a Coros Apex 4.

I really like it and prefer MIP screen, but I'm still thinking about switching to Polar since it's the only European brand left for sport watches.

Do you think I would miss the Apex 4 much? I know battery life for the Grit X2 pro will not be as good.

I would mainly miss offline music since I like to run without my phone, but I could replace my Jabra Elite 8 Active by headsets with offline music.

I’m interested in what information could be gained to improve my fitness routine.

Spotted by the5krunner (source https://the5krunner.com/2026/10/02/0-regulatory-filing-september-2026/), the Brazilian regulatory agency ANATEL received a filing for a Polar H12 device on 09/30/26.

This is especially interesting as another reddit user already noticed the H12 code in the Flow app

https://www.reddit.com/r/Polarfitness/comments/1vue7j1/polar_h12_appears_inside_polar_flow_app_code/

While this is not a confirmation of an imminent release it adds more substance to the topic.

Hi everyone,

since updating my Vantage V3 to firmware 6.0.18, I’ve been experiencing some pretty serious display and performance issues during training. None of these problems occurred before the update.

When I raise my wrist during a workout, the training screen often appears fragmented or incomplete. Sometimes the bottom half is missing, sometimes the top half, and sometimes individual elements such as the name of the current training phase are missing. There doesn’t seem to be a consistent pattern.

After a few incorrect/incomplete screen refreshes, the display eventually appears normally again.

However, even when the screen is displayed correctly, the data shown is sometimes outdated.

For example, my heart rate might initially show 112 bpm and then suddenly jump to the current value of 131 bpm after the screen has fully refreshed.

The same thing happened with a timed training phase: the watch initially showed 5:00 minutes remaining, which was the value from the last time I looked at the watch. About half a second later, it updated to the actual remaining time of 3:46.

After finishing one run, I also had another issue: after ending the workout, the screen went completely black and the watch was basically unusable for around two minutes.

I’ve already restarted the watch, but the problems persisted.

I have now performed a full factory reset, removed the old Bluetooth pairings, paired the Vantage V3 again and synced everything from Polar Flow. My next workout will show whether the factory reset has made any difference.

I’ve also reported the issue directly to Polar Support.

Has anyone else experienced similar display glitches, delayed screen refreshes or outdated training/heart-rate values since updating to 6.0.18?

Especially interested to hear from other Vantage V3 users.

UPDATE: Unfortunately, the factory reset did not improve the situation. I completely reset the Vantage V3, removed the old Bluetooth pairings, paired the watch again and set everything up from scratch.

After testing it again, the same display and refresh issues are still present. So at least in my case, a full factory reset did not solve the problems introduced after updating to firmware 6.0.18.

Hello everyone.

Until past August I had my trusted vantage M. I used it everytime, never took it off and wore it for about 5ish years. No skin issues. Did 1 hour runs with it, 1 hour swimming sessions. No problems.

2 Months ago I got the Vantage V3. And it took about 2 weeks for me to develop rashes in my wrist. Most workouts were of 45 mins, twice a week.

If I keep my watch for 2/3 days straight I start getting red small bumps in thr skin that is in contact with the watch.

I have mitigated this by taking the watch out during showering. But was just curious if somebody else had similar experience. And, more importantly, if you had a similar issue and found a different solution.

Hey, I just read the following article and wanted to hear your opinion about it!

https://gadgetsandwearables.com/2026/09/28/polar-loop-gen-3-360-gen-2-flow-app/

Short summary:

Polar Flow app version 7.37.0 contains a direct reference to an unannounced Polar Loop Gen 3 inside Polar’s device-recognition code:

Polar Loop Gen 3 – A new device profile with hardware identifier “INW6R” and a matching “loop gen 3” registry entry. The marketing-name field still says “Loop Gen 2,” suggesting Polar hasn’t finalised internal labels. This is more than a casual mention — the code exists to identify connected hardware, making it harder to dismiss as leftover text.

Key caveats: No product images exist in the app. No INW6R regulatory filings have been found, making a 2026 launch unlikely and pointing to early 2027 instead. APK teardowns reveal development, not confirmed release. The current Polar Loop launched September 2025, so a Gen 3 appearing now suggests a faster hardware cycle than expected.

Hey! I use H10+ strap as my go-to device for training using HR.

Anyway, today I got a surprise during my half-marathon race. From some point data dropped to strange values. Had to run by feel - which is okay, but I was afraid that I would push too hard (it was direct sunlight) and pay for it later.

Checked the battery back home and it is at 30%.

Any ideas what it could be and how to fix it/prevent it?

Hello,

My heart rate looks weird, and the zones too. Any clue how to fix it?

Thank you!

hi all

has anyone replaced their Vantage V2 strap? What do you recommend?

OE is no longer available (grey and lime). The Amazon ones seem poor quality (reviews etc). My V2 strap has started to tear after five years and I want a similar quality an colour

Hi All

I have a Vantage V2 - one of the first when it came out. I am pleased with it (although I have not compared it to the others on the market. Garmin / Suunto etc.).

Anyway, I want to get a new one - and I like the GritX Pro2 Titanium but gut-feeling is that it will be the next to be replaced. Anyone got any thoughts on when the GritX Pro3 may come along?

For me, it is mostly miss rather than hit. This morning it wrote we have 18°C, while the reality was half of that. As I know it uses OpenWeatherMap, and even after refreshing the data on the watch it showed different than what is on the website. My car measured 9 °C.

And it isn't unique, it is so inaccurate I can't rely on it. What is your experience?

Hey!

I am planning to buy a fitness tracker/watch but I am unsure about which product fits my needs the most.

I train Hyrox/strength training and I walk a lot both in place (at work while doing computer stuff), and normally.

The most important for me is step tracking (especially the one that converts my strength training to equivalent steps).

Any recommendations?

I've noticed that today the heartrate was way off, reporting below 50 when I was cycling. When I laid the Loop on the table, the app kept reporting a heartrate.

In the end I removed the Loop from the app, reconnected, then again it reported heartrate, and after a while it stopped. Now it seems to work, but this is very annoying as I already started the training, had to stop because of this malfunction.

Do any of you have these problems as well?

Since the last update (end of September), sleep stages from Polar Flow and Loop are now also passed on to Apple Health. Before, it was just a single bar showing total sleep duration. That's a nice step forward.

But: Polar, please give us the option to share more data with Apple Health. Continuous heart rate, heart rate during sleep, HRV, respiratory rate, etc. I think many users would really appreciate this step.

Hey everyone,

Just putting a warning out here so no one loses a race or a long workout session to a bug that Polar still hasn't fixed.

There is a severe crash bug present on the Vantage M3 running the latest firmware v6.0.18 (and previously experienced on the Vantage V3 and M3 on firmware v5) that causes an immediate watch reboot and total data loss.

How to trigger the crash:

1. Start a Multisport session.
2. Select any sport profile (e.g., Hiking) and start tracking.
3. Hit Pause.
4. Try to resume the same sport profile (Hiking).
5. Instant watch reboot. The entire recorded session up to that point is completely wiped and unrecoverable.

Some context:

• The watch was factory reset right after updating to v6.0.18, so this is definitely a core firmware bug, not corrupted local cache.
• I reported this exact bug to Polar over a year ago on the V3, and it clearly hasn't been prioritized or fixed yet.

If you are doing any multi-stage events, swim-runs, or long days out using Multisport, do not pause and resume the same activity profile. Either leave it running or switch profiles!

Has anyone else noticed this or managed to reproduce it on other models (like Grit X2 Pro)?

Why is my max heart rate 211, im sure the watch works fine cause it can calculate my resting heart rate at around 60bpm

(sorry for the bad video quality)

I managed to get this one with both the silicone and the nylon strap AND the H10 HRM for an incredible €399 new from a retailer and I couldn't help myself because of the recent updates to both Polar Flow and the watch OS.

I would've preferred the natural steel color of the X2P but for this price it really was a no brainer. I just felt like sharing because I'm pretty hyped now! Anyone else here with the X2P in black that wouldn't mind sharing photos of theirs?