So how many mid-tier phones do you know out there with dual-channel 4GB RAM? “Not a lot” is the answer you’ll get, most probably. In truth, the ASUS ZenFone 2 was indeed the first one out there to utilize this much RAM. Then that was followed by Xiaomi’s Mi Note Pro phablet. But those two are not in the same category. Now Lenovo is coming out with the K80, yes, with 4GB of RAM and a lot closer to where the ZenFone 2 is, market-wise.