Suunto Smart Heart Rate Belt keeps losing connection to the watch
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Has anyone experienced similar issues with a Suunto Smart heart rate belt?
The connection to the watch is established normally at the beginning of a workout, but only for about the first minute. After that, the connection becomes unstable and the heart rate data drops out. When the connection briefly comes back, the heart rate readings are accurate, but again only for less than a minute before disconnecting.
I have already tried the following:
• replacing the battery in the heart rate belt
• restarting the watch
• disconnecting and re-pairing the Bluetooth connectionThe belt is about 3 months old, and the issue started appearing a couple of weeks ago without any obvious change in usage.
Does this sound more like a faulty belt, a contact issue, or a software/firmware bug? Any advice or similar experiences would be appreciated.
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I have this issue you described with my SV1… it appeared after the last firmware update. I used two belts, one was really new, both belts the same crazy behavior. In my opinion, it’s the watch firmware.
I contacted also the Suunto Service with a chat in the app several times, one of the guys wanted me to send logs…
Actually I use OHR for running, and I wait to see the behavior after a future update…
Merry Christmas
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@JaakkoK Wait for the next update hopefully soon. On field test firmware I am not having any drop outs. I did not with your production firmware but did have other issues with the Suunto Smart Sensor. You have done everything necessary and the strap is not that old.
I do find in cold weather if I am not sweating enough and wearing a tech shirt get HR interference from static. -
@Brad_Olwin @SuperFlo75 Thanks, I’ll wait for the update and hope it solves the issue
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@JaakkoK
I still have the same issue!
Did you find a solution? -
@salusi I have the same issue, my current solution is to use an old Polar H10 I have lying around.
There are other threads where people seem to have the same issue.
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Has this issue been fixed? I recently got a vertical (latest firmware) with a sensor belt and my belt keeps loosing connection with the watch.
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@Henrik-Nilsson I think this problem is not fixed yet… I have this problem on SV1 and on SV2
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It also happens with the Suunto Run. And it’s not exclusive to the Chest Strap. Using Bluetooth phones to listen to music also makes this issue appear. The issue almost always appears after around 1h training, pauses or GPS disconnections during tunnel passages.
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This evening it happened with my race s and polar oh1+
Heartrate band disconnected, didn’t reconnect and the buildin heartrate sensor didn’t take over.
My stryd stayed connected though.
I will report to suunto support.
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@elbee said in Suunto Smart Heart Rate Belt keeps losing connection to the watch:
Heartrate band disconnected, didn’t reconnect and the buildin heartrate sensor didn’t take over.
It isn’t supposed to be taking over.
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@2b2bff but it seems it does. At least on the Suunto Run. I saved today’s run to report tomorrow.
2 issues happened. Max heart rate much higher than registered on the HR chart and in the end I did a pause and the connection to the Suunto Chest Straps was lost when I restarted a few seconds later.
The maximum HR registered by the chest strap was 154bpm but somehow on the Max HR in the intervals summary many values of 170bpm (these are wrong) appears. Also it can be seen that the HR chart doesn’t end. It was the pause. Unfortunately Suunto seems unable to solve this issue that affects all watches and makes all data contaminated by wrong measures or lack of them.
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Sorry to hear about all the problems people have. Have Suunto acknowledged there is a problem and working on a fix or has they already “posted” the fix but it still remains?
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@Henrik-Nilsson they gave me a predefined answer with the usual stuff… It’s strange how a bug of this magnitude does makes them more proactive to solve it.
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@Nelson-Diogo I agree. Hopefully they are aware and working on it. It seems wierd selling products that are supposed to be used together and they arent =).
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@JaakkoK
I have recently experinced tha same issue with a smart belt bought in february. Lately short disconnections occurred, which had never happened before. Lastly, on Sunday after a couple of short dicinnections, the belt and the watch never reconnected for the rest of the workout. After the end of the session, i restarted another one and the watch saw the sensor without issues. Nevertheless, Given that in 10 years i have replaced several sensors because faulty or dead, i attribute this to the sensor, not the watch. Fiven that i bought it on amazon, i returned it and bought a new one, so let’s see.
The suunto smart sensor is not exactly a piece of reliable engineering, actually is quite crap, as i said i replaced several of them, i guess some 5 or 6 since 2015 -
@sindavide I’m also almost sure the the issue I have it’s a faulty Suunto Chest Strap. The Suunto Run is behaving awesomely for me in any other respect.
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I don’t have a Suunto chest strap.
I think the problem with mine is a combination of my stryd and a polar oh1+ (although I think the heart rate sensor is irrelevant)
The stryd causes some odd behavior when I do warmup exercises at my athletics club. While doing planks, my watch buzzes due to some signal from my stryd (is my assumption, the buzz is real, the cause is assuming) and after that my watch loses connection to my heart rate sensor.
Last couple of weeks we didn’t do that kind of exercises and I had no problem with disconnecting heart rate sensor.
I suspect the problem is in the watch firmware. It either cannot handle certain signals from my stryd or it cannot deal with disconnecting sensors.
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