Originally Posted by minidude2012
That's how it worked on my g3
I don't think so. How it worked in G3 was that u could choose either sim 1 or sim 2 as your preferred sim and can activate 4g on the sim of your choice. But if you chose sim 1 as your preferred sim and chose 4G/LTE, sim 2 would automatically be switched to 2g and vice versa.
In moto G4 you don't get the option to use 4G on sim 2 at all. If you choose sim 2 as your preferred sim for data, you will only get 3G speeds. So if you want to use a 4G connection, you will have to place the 4G sim in sim 1 slot.