The way I see it, the differences are not significant. However, the V2 model is certainly the newer and in some respects better model.
Here are some of the main differences:
- The V2 has all ranges from WIFI1 to WIFI6, the other only WIFI6
- The V2 also has WPA3-PSK encryption
- The transmission rate of the mobile network is 3400 Mbit/s for the V2 and "only" 1000 Mbit/s for the other model

In terms of the specs, I would go for the V2, which is even cheaper.