How is it different to a regular 2860?

The plus seems is the same case as the 2830n (only 2.4G band) and the 2830n plus exactly the same features as the 2830n but with 5G band

the 2860 is only 2.4G band with 2 antennas and the plus has and the 5G band simultaneous plus an additional 3rd antenna, 3 in total(seems to me the 3rd added antenna, is for the 5G)
If i am not mistaken all the rest features/settings are still the same

babis3g: correct the 2860n plus should be simultaneous dual band with two radios using three antennas, personally I've been waiting for it since where I live I need to be able to use both frequencies, having both in the router is nice