Because of course, it's a Fandroid site and they can't possibly compare an Apple device with another and have the Apple device "win". If they compared it with the 6+ it would be more fair as it has a relatively comparable battery. Still. If the 6 was slightly thicker (OMG NO WAY) it could have a much beefier battery, even if it was 1mm thicker the battery would be ~20% more. Is 1mm thickness worth sacrificing 20% battery life? IMO, nope.