The health app is so disappointing . It's just a health logbook and need third party data input. Why do u need that when the iPhone (including iPhone 6) already got the sophisticated GPS, accelerometer and barometer etc . The phone is capable of recording the distance the steps the speed on itself .

Alternatively u can move out all ur photos to ur PC , then upgrade OTA. After just sync back the photos lo. That's how I did it . Coz my itune counldnt get the ios 8 keep saying got problem with server

Btw I realise the yahoo got nice weather apps for notification widget . Is this one of the new features of iOS 8 ? That now the notification center got widget

But when I searxh in AppStore "widget" many many apps got widget shown in NC also. But I'm not sure whether those are updated version for iOS 8. It seems like those widget apps exist some time ady.

I got the yahoo weather apps from the apple recommended apps for iOS 8. Nice app ! Finally can see some thing different new in NC ady

How to use the HealthKit ?

iOS 8.1

The hands off feature is quite confusing , some area u need wifi connection but need not the Internet , some area just the Bluetooth will do. Like calling need to connect to the same wifi network. Why can't just link through Bluetooth ? We have Bluetooth hands free and no problem at all.
Besides that , for the airdrop to enable all the time , the battery dies even faster .

I'm using iPhone 5. Decided not to go iPhone 5s , not worth the upgrade. But iphone 6 , yes