iPhone 6 shutting down early
Hi,
My iPhone 6 has started to shut down before the indicator has reached a low level. For instance today it shut down with 16% showing. When i tried to restart, it told me to plug it in. Even though it was switched off it still counted my steps for the Health app!!!!
Do i have a hardware issue? What should be my next move? Full reset and if that doesn't work then take it in to Apple?
Thanks for any input.
iMac, Mac OS X (10.7.3)