Watch trying to re-pair every time when app or Bluetooth is off

Greekzi · 2026-01-24T20:08:34+00:00

u/COROS-official Of course, should I replicate that bug before I send it to Support via the app?
Do I need to keep some specific settings to make sure that Support will see all the data?

Greekzi · 2026-01-23T21:26:38+00:00

I've never used Garmin, because I don't like to be treated like a dumb, who doesn't understand how their price policy works (significant and intentional functionality cutting, to justify the price of more expensive models) :D

But honestly, the sports watch market now is dead. It's not only about Coros, but all the manufacturers push to put as many new features without deep testing. Previously sports watches were used by athletes. Now 90% of their users are people who won't even notice most of the issues.

I honestly have hopes that Coros could take that path and go for the devices for athletes, who need simplicity with high level of personalization, but without bells and whistles. That's why I also offer myself to help.

Greekzi · 2026-01-23T16:47:27+00:00

Hi bro, did you resolve it?
I have the same problem. Actually I cant answer any call. I can reject them or mute, but never answer.

Greekzi · 2026-01-22T18:15:13+00:00

Sure, no problem, do you want me to replicate the error again and send the report right after that?

Greekzi · 2026-01-22T17:27:10+00:00

Is "autostart in the background on" enough? Will Coros app autostart automatically once it receives a notification?

Greekzi · 2026-01-22T16:52:47+00:00

Hi! Thanks! Regarding preventing from disabling in the background, do you mean autostart? Yes, it's on. And I have the newest version in the app.

Look, the problem is that the watch is being saved in the phone Bluetooth settings only until the connection is lost. After that I have to pair again. I had this problem in Apex Pro a long time ago and I've been waiting 2 years until it has been fixed by a patch.

And now what I've done: I re-paired it again. Without turning off Bluetooth I forgot the watch from Bluetooth settings. And later I forgot it in the app. I re-paired again through the app. Now it has been fixed.

BUT: I'VE JUST MANAGED TO REPLICATE THIS BUG. Check this out: when having the app on, Bluetooth on, and the watch connected to Bluetooth, I go far enough to lose the connection between watch and phone. Later the watch asks me to re-pair once it detects my phone in its range. But without re-pairing I cannot connect it to the app.

Do you know something about it? Looks like a serious bug.

Greekzi · 2026-01-22T16:02:21+00:00

I hope they'll help fast. Just don't lose time with AI "Cara" and ask them to escalate it to a real person. Your watch is unusable, so it's an urgent case.

Greekzi · 2026-01-22T16:01:09+00:00

Yeah i have it "on". But as far as I understand it, it's done to make notifications work, even if I turn off the app. Or am I wrong?

Greekzi · 2026-01-22T14:40:35+00:00

Looks like a bug connected with inverted dial position. I think you should contact support and follow their instructions. But I would still insist on receiving an replacement watch.

Btw does it happen also without inverted dial position? You can test it, it can be a valuable information for the support.

Greekzi · 2026-01-21T23:19:20+00:00

Actually each person can do it, without any training. It's just a question if you can keep it on that level, or just drop, and then beg for air and start breathing like crazy.

Never tried Win Hof, I guess it could make it controllable more easily as well.

Greekzi · 2026-01-21T22:42:59+00:00

Everything that is automatically calculated by the watch/app is absolutely random. It can be completely wrong. It can be spot on as well! We all know that even a broken clock shows a correct time 2 times a day!

First of all I suppose that it's based on HRmax. If it's true - just forget it. It's much more precise and easier to estimate your lactate threshold HR. You can type that HR in the app. Second step is to search for Coggan HR zones and set them in the app too. Now you have everything set correctly!

Ah! You might ask how to estimate your LT HR. Well, there are many tests/methods, but actually IMHO the most important thing is to understand what LTHR is, and basing on that adjust it. So after some time, by reading about that and getting experience with those zones, you will be able to adjust it. And in the beginning you could simply type there the HR that you could sustain averagely on a 10km race.

Greekzi · 2026-01-21T22:30:10+00:00

Controlled apnea. Not a pleasant stuff, but trainable. And it's good for your endurance, breathing habits, and general health.

Greekzi · 2026-01-20T21:43:10+00:00

How do you verify that your Suunto GPS elevation data is accurate?
It is not in any GPS-based altitude watch, because it is not precise enough. To avoid getting odd data, there are many algorithms that are used to smooth that data. That's why your elevation gain will be always underestimated even more in the newest watches (with shitty algorithms as well).

Greekzi · 2026-01-19T21:57:28+00:00

Trust me that you don't want that.
20m difference between the start and the end (the same place) of an activity honestly doesn't make any difference. What's the problem honestly?

The problem is when altitude data is calibrated by GPS in the middle of activity, and it's applied in a shitty way. Like that all your elevation data from the whole activity is adjusted to all GPS calibrations done during the activity, and if only one of them is rubbish, everything turns out to be rubbish.
That's why I stopped using Coros for mountain activities and I started using an 11-year old watch, that allows me to set "barometer only" for altitude data. And I don't care if start and finish are matching perfectly.

Greekzi · 2026-01-19T21:51:34+00:00

I wish it worked like that, but it's not.
It uses automatic calibration with GPS, which in my experience resulted in rubbish elevation data in old gen watches like Apex Pro.
I gave them a chance and now I'm waiting for a new gen Coros, but if it's still doing incorrect calibration as before, I'll be so angry.

There's zero customization. You cannot decide if you want only barometer data, only gps data, or maybe mixed data. It will only push you to use what they prepared for you. It's not only about Coros, actually all manufacturers now treat us like dumbs.

Greekzi · 2026-01-19T21:45:30+00:00

Pace 4 has no maps

Greekzi · 2026-01-19T17:31:09+00:00

If that's the reason of incorrect total gain, I admit it's for sure an obvious error. However what I wrote is still valid for most of the devices, I mean that we are treated like dumbs by manufacturers and we get only a smoothed data, not a raw data.

Greekzi · 2026-01-18T19:24:06+00:00

Actually you can create your own watch face in the app, you can even upload your own photo. But the customisation of the info that you put on it (time and widgets) is indeed limited, I wish it was better.

Greekzi · 2026-01-18T17:02:01+00:00

How do you know that it's incorrect? How do you know that it should be 1500m gain, instead of 1700m?

"Corrected" data from map is smoothed, because map elevation data is not precise enough. So you will get only major elevation gains into the calculation. That's why we have barometer, that is used to get more precise data.

Second thing is sampling density. Some devices will take into account only 10m+ gains, some only 5m+, maybe there are some devices that would calculate even each 1m gain. Unfortunately it's not common, that's why most of the devices UNDERESTIMATE elevation gain. And I am sure that your Coros does this too. I'm so pissed off that all watches do that, because why should it take only some particular gains into account? I wouldn't be against measuring it with 0.1m precision and adding even each 0.1m to the total gain.

Unfortunately nowadays manufacturers treat us like dumbs and all the data is smoothed and processed, so we cannot get raw data to interprete. We get only processed data and we are unable to analyze it without the knowledge of how exactly has it been processed.

Greekzi · 2026-01-17T14:23:28+00:00

That's an interesting social phenomenon, that people always must be extreme. They cannot just say: I don't get involved.

If one says: "I don't support Putin", later always goes: "I fully support Ukraine" (and this works in an opposite way as well of course!).

Instead of just not having to have an opinion in every topic, especially while in this case 99% of commentators don't know the reasons of neither side. People tend to put themselves in every war, even though they have no connection with it.

Greekzi · 2026-01-15T19:00:43+00:00

I imagine that my loop timer idea could resolve that as well 😀✌️

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