I have an iPhone 6+ silver 64GB on O2 in the UK. I never turn off Bluetooth,wifi or put it in flight mode (unless I'm on a plane ).
I have 5 exchange accounts on push and my iCloud account. All email accounts have notifications on. I also have Paper running for Facebook stuff. I run Xbox One Smartglass to chat with a couple of Windows phone friends and iMessage for 90% of the rest.
I use safari, a lot and have background app updates on for the majority of apps that use it.
Brightness is on auto but the start point is set to about a third.
I listen to music on my Bluetooth headset and I make about 20 hours of calls per month.
Whenever I'm at home im connected to a new model Time capsule with AC wifi. Other than that it's on 3G (no 4G around here, apart from parts of Edinburgh.)