I was curious to test the chinese GPS, so I went for a short run with decently difficult GPS conditions : houses and small buildings around me most of the time. But at least I can run in the middle of the street. Both watches on the same arm.
The S9 is cutting corners quite severely. It was always the case during my tests, but it seems worse. The S9 distance seems quite fine surprisingly. The F6 is too short, as often, but once corrected to use the pure GPS distance, it's fine. The S9 was giving a very wrong pace, the distance was adjusting 200m by 200m. I don't know if it's a bug of the new firmware.
I was not expecting anything fabulous from the Beidou GPS, and it seems to be similar to the GPS+Glonass or GPS+Galileo. Not really any better than usual.
