x 0.5-1.5 (H) inches with 6-cell battery Weight: 3.5 pounds with 6-cell battery 4.875 pounds with 6-cell battery and optional external battery slice Windows 7 Professional (64-bit) Lenovo ThinkPad X220…

…IEEE 802.11b, IEEE 802.11g, Bluetooth 3.0, WWAN, 3G network Input: splash-proof keyboard, TrackPoint, UltraNav touchpad, fingerprint scanner, HD camera Battery: Built-in lithium battery Endurance: 5 hours battery life, 1000 charge-discharge…