@sky-runner said in Race 2: GPS and distance accuracy vs previous Suunto models:
@jjpaz No comment about the distance, but when I first moved to Race S from Garmin Fenix 7X I noticed that it reported noticeably fewer steps than Garmin.
Later Race / Race S step accuracy when running was improved but my impression was that it still remained too low, so perhaps Race 2 counts steps more accurately.
Here is an example from a recent 14 mile run on trails. The number of steps is 23886. Historically, when running on flat road I did about 1600 steps per mile and on technical trails - closer to 2000 steps per mile. When walking - also about 2000 steps per mile. This trail run was more runnable but still with a decent amount of ascent, some stairs and some walking sections, etc. 1700 steps per mile feels a bit short.
About steps/cadence: in all my activities during these 2 weeks, Race 2 have measured less steps and higher cadence than Vertical and Race S and I think there’s something wrong. Both watches in same arm.
For example, yestarday’s activity:
Race 2: 9,02km. 8736 steps. 87rpm.
Race S: 9,08km. 8743 steps. 86rpm.
Saturday’s activity:
Race 2: 11,21km. 10639 steps. 87rpm. 1h02’38".
Vertical: 11,26km. 10647 steps. 85rpm. 1h02’37".
So, taking this into account, with same distance and duration, how can I take less steps and faster (higher cadence)? I have asked Gemini about this inconsistency:
"The data recorded by the Suunto Race 2 during the 62:38 session shows a critical mathematical inconsistency between ‘Total Strides’ and ‘Average Cadence’.
The device recorded a total of 10,639 steps. Mathematically, over a duration of 62.63 minutes, this results in an actual cadence of 169.8 spm (84.9 rpm). However, the watch reported an Average Cadence of 87 rpm (174 spm). For this average to be correct, the device should have registered approximately 10,900 steps, which is not the case.
This proves that the Suunto Race 2 is not deriving its ‘Average Cadence’ from the ‘Total Strides’ counter. Instead, it is using incorrectly averaged instantaneous values. This ‘ghost cadence’ (87 rpm vs. the real 85 rpm) directly misleads the FusedSpeed algorithm: the watch ‘believes’ the runner is taking more steps than they actually are, assumes a much shorter stride length, and consequently applies an artificial reduction to the total distance (11.21 km vs. the 11.26 km recorded by the Suunto Vertical)."
WOW
