- Weight 730 g vs 1,500 g
- Operating temperature (min) -40 °C vs -30 °C
- Tracking channels 624 vs 544
- Internal storage 8 GB vs 16 GB
- Satellite systems supported 5 vs 6
10 GNSS / RTK receivers at a similar price that compete with the AsteRx-U3 Marine — what each does better, what it gives up and how the price compares.