A:AnswerYes it does keep up with the current weather, forecast, temperature outside locally as well as any other states & countries that you have preset on your Iphone.
A:AnswerI had it paired with my iPhone 6 s plus so I would say yes it would be pairable with the 6 as well..it can count steps and activity and heart rate thru the apple health app but not blood pressure and you couldn’t use it for swimming as it is not waterproof..
A:AnswerYes, Siri is on the watch. I use it all the time. If you are a senior it automatically turns on the “fall notification” that calls your emergency list that you fell.