The P1m switches to a 64-bit MediaTek MT6735P 1GHz Quad-Core processor with 2GB of RAM, and up to 16GB of internal storage. Connectivity options seem the same, although we're not sure if it has NFC or not. The main camera is an 8MP autofocus sensor with an LED flash, while the front one is a 5MP lens like the P1's. The P1m also has a nano-coating that protects it against spills and splashes of water. It comes in "Onyx Black" and "Pearl White."
So what's so special about these Lenovo devices? Mostly, their battery size. The larger P1 (5.5" Full HD IPS display) has a 5,000 mAh battery, good for about 45 hours of 4G talk time. The smaller P1m (5" 720p IPS display) gets a 4,000 mAh battery, which should last for 16 hours of 4G talk time. And these phones aren't even that thick to accomodate their batteries: we're looking at 9.9mm for the P1 and 9.3mm for the P1m.
