Real world data

chrisc92

@isazi today time to compare OHR with polar H10

Everything started well, but after 5 minutes OHR was continuously +40 over.
Maybe started to sweat ? incorrect placement ?
Not tightened enough ?

Dimitrios Kanellopoulos

@chrisc92 is this running ? Maybe sweat. Just in case next time try to clean the sensor of sweat.

Just saying. No clue though.

chrisc92

@dimitrios-kanellopoulos yes just easy running at Z2 , my Hr is 45-160, my Z2 stops at 130, tomorrow i will tighten the wristband and try the comparison again to understand, because the first minutes were so close.

wotus

The sensivity of autopause in openwater swimming is not as good as I remember from the Ambit3peak. During constant movement with higher speed in crawl it automatically stopped, but did not start again. I had to continue very often manually. In the end, about 300m was missing on a known distance of about 1600m. Gps was set in performance mode +Beidou.
I also miss a data field for the number of strokes. Unfortunatly the SA shows no swimming metrics like strokes or strokes per minute.

Mff73

I am really mixed with this S9P.
Really comfortable, quick charge, 24/7 HR is nice (i come from SSU without OHR )
GPS is not that exceptionnal in my area (tried GPS+Glonass, then GPS alone, then GPS+Beidou). It is good, but…
And fused alti is strange to me.
Latest run, GPS altitude vs recorded altitude

Start and end altitude are GPS OK (385m), but not recorded one (425m).
Max altitude is somehow correct (510m)

wotus

During cycling in endurance mode I had very often Gps signal losses partially over 2km long, despite almost clear visible sky, both with Gps only and Gps+Beidou. I had to manually switch to navigation or switch to Gps performance mode so that the signal was found again.
In addition, I can only recommend autopause in Gps performance mode, otherwise it can come to automatic stops during the ride and there may be no automatic start for several kilometers.

Dimitrios Kanellopoulos

@mff73 I don’t see a problem ?

Dimitrios Kanellopoulos

@mff73 oh you refer only to gps altitude right ?

Mff73

@dimitrios-kanellopoulos
Not really, I compare GPS altitude (registered by S9P) with “fusedalti” saved altitude.
And there is quite a “big” of difference.
Isn’t it? Or it seems normal?

Brad_Olwin

@wotus Why are you using Endurance mode? It is not meant for cycling as FusedTrack will not work. Endurance mode is typically for running/hiking.

wotus

@brad_olwin Because I’ve been so used to the ambit3 in the last few years to reduce the GPS accuracy from best to good without noticeable loss of track quality in order to extend the battery life without any difficulties and now I wanted to test it with the new suunto9p.
It is very useful that I can now change the battery mode during activity, but unfortunately with more disadvantages than I thought.

Brad_Olwin

@wotus The Endurance and Ultra modes on the S9b are far better than the 5s fix on the Ambit, I have used both quite a bit and was always frustrated with the Ambit. What are the disadvantages? From my perspective there are none.

wotus

@brad_olwin At the moment I see problems with too insensitive autopause and frequent and long signal losses when cycling with reduced GPS accuracy, as disadvantages. But these are luxury problems in case the battery charge should be too low for the performance mode.

Brad_Olwin

@wotus You can charge your watch on the fly. I don’t like doing that running but I would do it on a bike.

chrisc92

@wotus now autonomy in performance mode is near 25 h ; for the ambit3 it was 20 h that’s quite enough for a long bike ride

chrisc92

@chrisc92

Here is the Sunnto 9 Peak Wrist Optical HR record for my easy run.
S9P OHR Vs. Polar H10

this is the first time in my 8 years background of HR sensors tests that I have such a precise curve, with Suunto or Garmin watches and sensors. There are 2 small peaks but it’s probably when I checked my wristband to see if there was sweat and if it was tightened .
Outside temperature was also 13/16 Celsius so there was no sweat between my skin and the sensor.

I have now to test specific interval training to see the reactivity of changes, but this seems very promising.

wotus

@chrisc92 For longer rides like FischKona (600km) it may be not enough and I would take the endurance mode from the beginning.
My Ambit3p was set to GPS Good (5s fix, 30h battery life, recording intervall 10s) and the track quality was near perfect like the S9p in performance mode.
But now the endurance mode in S9p is not very usable for cycling, as I know it from the A3p.
I didn’t expect there to be such essential differences?

Dimitrios Kanellopoulos

@wotus are you using HR ?

wotus

@dimitrios-kanellopoulos To have a direct comparison, I did not use HR in endurance mode on the first ride, but in the following ones, because without HR my energy consumption is usually counted with zero calories. Regardless of this, the track quality remains equally inaccurate.

Dimitrios Kanellopoulos

@wotus I am asking because without HR the s9P should get you more than 30h in best.