I'm coming from iphone 6, and need to get a new phone asap. Any opinions on whether to get a 7 or 8 and why? (Not interested in plusses or X). I've heard 8 is heavier and the glass is more prone to breaking, and the wireless charging isn't necessary and you'll need to pay for it too. On the other hand, if the 8 is faster and better in meaningiful ways, I can do that too. And I guess the latest phone is often the smartest choice? Are there any significant differences in features or performance? I believe both offer "hey siri" without being connected to power, which my iphone 6 doesn't have and which sounds nice. Anything else? I'd like something that holds me for three years or so.