What’s the difference between F1 and G3 Duo?

[Cindy]

What’s the difference between F1 and G3 Duo?

 

[VIOFO-Swin]

G3 Duo is the first dual action cam, which can support slave cam, GPS module and waterproof case.
F1 is real 4K action cam, which is best for drone, both camera can support remote control.
Below is some comparison between the action cam:

 

[Alistair Parsons]

Also F1 is easier to dissasemble for lens replacement, better raw photos, the lack of viewfinder is main drawback,

F1 cant of coarse use accesories like the slave camera or GPS,