TX2

A good GPS unit, and the accuracy for the price cannot be beat. I used the apps: GNSS Master and SW Maps as intermediarys when needed (Android or RTK), but I'm getting 2.5cm horizontal and 4.5cm vertical accuracy using RTK Float. I've tested the TX2 on both Android Samsung A50 and iOS iPhone 15, and it works well. The provided case and charger are nice. My only suggestion would be for Spark to make some "cradle to grave" demo videos for both Android/iOS using both Field Maps and QField, and demo the options avaialable in the unit itself (via the TX2's direct wifi connection). There's a lot this thing can do that isn't immediately obvious to a new user.