So here's what I'm thinking. I currently have a Nexus 5; owned it since late 2013. It still runs quite well and I have no real issues with it. Sure, the camera could be better but that's pretty much it. My situation is that, with an unlocked device, I'm enjoying the contract free life. I'd like a new phone in 2015 but don't feel I need to spend between $700 - $800 for a new phone. European pricing suggest the M4 Aqua will be under $400 unlocked. I'm thinking that with a SD 615 (64 bit), the same RAM as my Nexus, the same display size but 720p, better battery life, and a better camera the M4 Aqua could/should be my next device. Do my assumptions about performance, improvement over the Nexus 5 sound reasonable? Of course the reviews - from real reviewers like GSM Arena and AnandTech (The Verge is opinion and has lost the tech plot) will be an important factor. Thanks in advance for your thoughts!