The world of wearable technology is fast expanding in every direction, although it remains to be seen just how far gizmos like a smartwatch or fitness band will be able to go. Lenovo, a name that is more often than not associated with computers and notebooks, is now linked to a potential wearable band, where it is called the Lenovo Smartband SW-B100. In fact, the Smartband SW-B100 is said to have shown up at the Bluetooth SIG website not too long ago, where it is known as an activity tracker.