Each time you activate the display, you're cutting to the phone's battery. Probably the last item you need to evaluate is availability in the marketplace.

Push notifications (like e-mail) are generally easy on battery, but other services, including Twitter and Facebook apps, are constantly connecting to company servers to check for updates. Since bluetooth headsets are generally used when you are around the go or while doing other things, it is important to have properly and fully loaded batteries so that your particular work will never be interrupted by low power, especially if you are on a company call using a client or some other important conversation.

In comparing the 2 power tools, it's an important thing to think about. Lastly, ensure be scanning this on your smartphone or laptop.