The Meizu M5 is shaping to be the more interesting device of the mid-range M5 duo. We already took the M5 Note for a spin and it turned rather uninspiring and had no meaningful upgrades whatsoever. On the other hand, the M5 comes with a bigger screen and battery, the latest mTouch key with biometric security, and newer Android version.
Source: http://www.gsmarena.com/meizu_m5-review-1566.php