Hi, Technically there is no difference between the Luba AWD 5000 and the 3000. The difference is in the programming of how many hours can be mowed each day (and the reduced number of zones 5000: 10 zones 3000: 6 zones. Both have a 10Ah battery fitted.
Comparison table between version 1 models here - https://easylawnmowing.co.uk/luba-awd-5000-review/#LUBA_AWD_Comparison_Table
Are you in the UK? If so, I take it you are going for the version 2 Luba with the camera?
My Luba 2 AWD 5000 arrived a couple of days ago, I will be doing a video review soon (when the weather improves).
Thanks
Mark