[Android] Keep the Moto X or get a G4?

I like most aspects of my Moto X 2014, but my three gripes are camera quality, lack of onboard storage, and battery life (in the order of biggest gripe to smallest). US Cellular new offers the LG G4 for $100 with a subsidized upgrade, and I have one I can use. It's a huge improvement in terms of camera and storage space (counting a 32gb microSD card I already have, it quadruples storage).

But I wonder if there are some major downsides I'm not considering, where I should just stick with...

[Android] Keep the Moto X or get a G4?