I resently replace my moto g2 to moto g3.
Moto g3 is much better then moto g2.
In moto g2 there has 1gb ram.
But moto g3’s 2gb ram is great for playing hd games. The moto cameras are alwayes great.
Moto G2 give 720p bt moto G3 give full hd.
Size is same for moto g2 and moto g3.
Sound quality is also same in moto g2 and moto g3.
But moto g3 is a nice phon.