Aaron's back with day four of the Samsung Galaxy Note II Challenge. The most impressive feature thus far? Battery life. The 3,100 mAh battery, combined with HSPA+ connectivity (as the international version doesn't offer 4G LTE in the States), does an exceptional job. With moderate use, the device lasts between 18 and 26 hours, making it absolutely fantastic for a long work day or business travel. The display is beautiful, and the device is taller and narrower, making it a bit easier to hold in the hand. What would you like to see during the challenge period? Leave your comments below!