Forerunner 570 GPS Quality

Hi everyone,

First time posting in this forum here.

Does anyone know what GPS chip the Forerunner 570 uses? I wonder if its the same as the Forerunner 955/65. Or at least if the Forerunner 570 has better GPS performance in a big city over the Forerunner 955/65 to justify the price difference. I did some small-scale tests on the Forerunner 955 GPS and it was 100 meters off for a 2.5 km route in a big city.

Thank you in advance!