As an owner of the iPhone 6 plus, I'm looking for solutions for running. I had owned an I-10 armpocket and liked it very much but I think the Ultra i-35 may be just too big. I don't have the biggest arms in the world, and I wonder of the arm pocket would be just too big. Its also more expensive, though price isn't a major factor in my decision. Thoughts on what would work best for running. Flipbelt Or the ArmPocket?