按照那个比较来说，好像应该是Forerunner 945比较不准。

It all comes down to how much money you are willing to spend. If you’re after more bang for your buck, the Forerunner 945 comes with pretty much everything you get on the Fenix 7 model. The sacrifice is the build of the device, which is slightly plasticky, along with a few missing performance metrics, fewer activity profiles, slightly shorter battery life, previous generation heart rate sensor and GPS chip – and a few other minor bits and pieces. If you only want the best – the Fenix 7 is the way to go.

海拔不准确有没有可能是没有校准。时不时还是要校正一下的。我觉得大部分时候还是蛮准的。不准的时候，感觉是downton高楼多的时候，或者野外岩石坡。