Things different from the X1 Carbon (beside the new Intel plattform):
- Even thinner (17.2mm / 18.76mm with Touch) and lighter (1.27kg instead of 1.36kg), still the same 13" footprint
- New Display-Options: FHD, FHD Touch, QHD (2560x1440) IPS
- LTE and NFC available
- New OneLink Dockport available
- Same battery size, more battery life (due to the new Intel Plattform)
- New hinge design and new 5-button TouchPad
- According to this document, no more soldered RAM, one DIMM
That also means the "ThinkPad 9 Slim" Prototype won′t come to marekt as the X1 Carbon successor.