Suunto 5

I bought my girlfriend a s5 and after a fews runs i am a bit confused because the ascent recorded by the watch is about 50% of the real ascent. I use the ssu. I know s5 has no baro but at least it should record the GPS ascent which is about the same i her from the ssu. Is this a known issue?

Saketo Nemo

Have you tried a full vertical track, without d- ?
Going from 300m to 800m should results 500d+, in S5 and also in SSU.

In tracks where there are many up and down you will not have the same results because GPS device store d+ only each 7m gained, BARO device each 3m.

btw, 50% less is too much…

suzzlo

@whl_89 Same here with SSSW (no baro). Are ascend step sort? Usually in my 10-15k run with +400m always have less than +200m

whl_89

@Saketo-Nemo i just made two runs with ups and downs but both around 50% of actual ascent. I mean i am aware of the non existing baro in s5 but this huge differences are really bad for a 300€ device

whl_89

@suzzlo mixed ascents but shouldnt there bei an algorithm to overcome those recording gaps within those 7m?

Saketo Nemo

just my curiosity: can you share the link of the two activity ? (also in pvt if you want)

whl_89

@Saketo-Nemo I will upload them later

whl_89

@Saketo-Nemo

S5:
link text

SSU:
link text

Dušan Ković

Out of curiosity, I wanted to see the altitude diference, so I imported both to QS:

S5:

suunto 5.jpg

SSU:

Both have similar graph shape and are in similar altitude ranges, but SSU seems a bit jagged compared to the S5 which looks smooth. Not sure which one is correct. But I’m guessing that SSU has more altitude difference because all those small spikes, also bigger drops in altitude on multiple places.

whl_89

@Dušan-Ković If i plan this route in komoot or Suunto App altitude differences of ssu is quite correct and s5 ist about 50%. SSU works fine i think

Dušan Ković

@whl_89 One of my friends wants to buy S5, so I’m searching for possible problems with watch. Maybe this is one of the problems with S5. Have you tried GPS, GPS+GLONASS or GPS + GALILEO on the same route with S5?

suzzlo

@whl_89 same here