One quick question about the M3 Note, is the back actually aluminium as one review says this:
"The phone isn’t overly thin, but it has a nice-premium feel to it, despite the fact that it’s not made of metal. Although the M3 Note may look like it’s made from aluminum in some pictures, it’s actually plastic with a metallic finish. It’s reminiscent of the LG G3’s metallic-looking plastic back plate."
Don't know what those guys were smoking, it's definitely metal. The caps on the top and bottom are plastic for the antennas.