First up is the mid to high-end "M4." Evleaks speculates that the "M4" won't launch alongside the "M7," but will appear later this spring. Specs are said to include an unspecified 1.2GHz dual-core Snapdragon processor -- and there are a few to choose from these days -- 2GB of RAM, a 4.3-inch 720p display, 16GB of storage and a 1700mAh battery. Camera-wise, the M4 apparently packs a 13MP, f/2.0 setup with 1080p video recording, and a 1.6MP front-facer. On the software side, we're unsurprisingly looking at Jelly Bean and HTC Sense. LTE is to be offered "where available" the source claims.