However, navigation and voice commands are more demanding, though I never ran out of juice before the day was through. (slashgear.com)
You definitely won't have to worry about running out of juice on your long runs. (businessinsider.com)
The handset comes with military - grade durability and offers users a massive 4,000 mAh battery to make sure they don't run out of juice on their device. (neowin.net)