Nexus 4 Replacement

I received my nexus 4 replacement and have noticed a few things.

I reason I got a nexus 4 replacement was due to the fact a had a rattling noise and the phone got fairly hot pretty fast around 43 C.

The replacement device makes a small rattle sound and it gets hot as well around 38 C. But the screen isn't as bright and has a yellow tinge to it.

I was wondering if I should just keep my current nexus 4 or keep the replacement.