How do I upgrade my IOS to from IOS 7.1.2

[Tricia Rice]

I want to add a Fitbit App but am told it won't load on less than IOS8. Having read your answers about 8 I am wodering whether to bother

 

[kch50428]

You couldn't update to iOS 8 even if you wanted to...

 

[eve6er69]

It's a little late for iOS 8. Lol