Suunto Smart Heart Rate Belt keeps losing connection to the watch
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@Marcelo-Mönch Does this work with the Suunto ZoneSense? I think that ZoneSense requires a chest strap since it needs HRV data which cannot be provided reliably from an OHR !?
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@Calando Why is a chest strap necessary? Beat-by-beat data: ZoneSense uses a proprietary physiological algorithm (DDFA) that analyzes Heart Rate Variability (HRV) to determine stress and intensity levels.
Optical limitations: Optical sensors (OHR) cannot reliably measure RR intervals (the exact time between heartbeats) while you are in motion. They are only accurate for this metric when you are at complete rest, such as during sleep.
When pairing a chest strap, your watch will automatically disable the optical wrist monitor to ensure the data source provides the necessary accuracy for functionality. -
When pairing a chest strap, your watch will automatically disable the optical wrist monitor to ensure the data source provides the necessary accuracy for functionality.
It will disable the optical sensor of the watch, but not for the reasons you stated. Suunto just can’t work with multiple sources. On the plus side the disabled sensor will save you a bit of battery…
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Ça va faire un an que j’ai ce problème là.
Ça a commencé avec ma ceinture Polar H9.
Suite à ça j’ai pris une ceinture Suunto neuve et même problème. Je suis très déçu que Suunto n’est jamais résolu le problème … -
Same here with the 9PP after the last firmware update. Since then it happens regularly and as it isn’t reliable anymore I stopped using it regularly.
Anyone tried to go back to another earlier FW? -
Is there any movement on this issue, or is Suunto just sweeping it under the rug?
I went on a 5 hour bike ride today, and the first 30 minutes of my heart rate was measured. Upon completion of the ride, none of the data was synced.
The battery was replaced two weeks ago and still reports 100%, the old battery reported 80%, but after ongoing problems I changed it to eliminate a variable.
The fact that there is no way to force a reconnection to a bluetooth device during an activity is a serious problem. The same thing happened with my favero power meter pedals. I stopped for 20 minutes, the bluetooth turned off, and I couldn’t reconnect it. Thankfully I am able to change the sleep setting for the pedals and haven’t had an issue with them since.
I know this is the Race S board, but I’m on the Ocean and having the exact same issue.
Ocean 2.51.28
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K Kevin Major referenced this topic
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Suunto support told me not to expect a firmware update with a fix very soon.
And personally I don’t think it will be ever be solved. From the conversations I had with suunto support I don’t get the impression they are actually working it.
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@Kevin-Major
Are you sure it is not the hr sensor? I have been using them for over ten years, and they are not durable at all. I think that on average i champnged at least one per year -
@sindavide It very well may be the sensor itself. If they are meant to be disposable then they should be priced accordingly without a replaceable battery. Prior to this my old garmin sensor worked for years with my edge 800.
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@Kevin-Major See my posts above in this thread. In the meantime, I got a new sensor from Suunto, worked again but was also a bit unstable. I left it sitting in my drawer for now; use my Polar H10 still without any problems. The Suunto Smart belt will be a last resort only if the H10 does not work (which seems to be extremely unlikely up to now).
This implies that I also think it’s a sensor problem, not a (watch) firmware problem.
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@Calando
I use my race S with other sensors as well (polar H01, Coospo). The only ine with problems is Suunto Smart Sensor, meaning that it is the only one (and had many of them) that looses connection and acts funny.
I keep on using the suunto “smart” belt for three reasons 1) exceptional battery duration 2) swimming, as it is the only that memorises HR data to send them to watch after session is stopped 3) when it works and until it dies prematurely, it works well -
My polar oh1+ and polar h9 and my stryd looses connection.
Suunto support confirmed from the logs, the devices disconnected/connected several times until it didn’t connect anymore and the stryd was not to blame (don’t know how they came to that conclusion)
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