Fast smartphones are great and all, but they're useless once the battery goes flat. Fujitsu aims to solve that with the ARROWS A 202F. Launching with SoftBank in Japan later this week, the phone features a 1.7GHz Qualcomm Snapdraon 600, 2GB of RAM, 64GB of internal storage that can be expanded via microSD, a 5-inch 1080p display and a generous 3,000mAh battery in a package that's less than 10mm thick. Fujitsu's "Human Centric Engine" is said to further increase battery life, to the tune of two days worth of juice, but details of how that works are light. Chances are slim the ARROWS will make it to US shores, though the recently announced HTC Butterfly s, with an even larger 3,200mAh battery, just might.