My wife has a Note 4 and is happy with it but the the battery is weak and she was asking me what would be good upgrade(used phone) since she has had it awhile. I listed her phone on craigslist as a feeler to gauge interest at $200 and have a few people saying they will buy it at that price. I am thinking either Nexus 5x, Note 5 or a Moto X Pure. I might also consider the Moto G4. She doesnt care about a fingerprint scanner or build quality, a camera is her main concern and battery life. I prefer to stay at $300 or below, I saw a Note 5 on ebay yesterday for $270, I should have hopped on that