- RTK accuracy (horizontal) 8 mm vs 10 mm
- Tracking channels 1,590 vs 1,507
- Operating temperature (min) -20 °C vs -40 °C
- Operating temperature (max) 60 °C vs 85 °C
10 GNSS / RTK receivers at a similar price that compete with the M20 — what each does better, what it gives up and how the price compares.