Can anyone advise if it has a stopwatch function built in? Can't see it mentioned anywhere.

Thanks.

Can anyone confirm YOU HAD To pay additional fees when ordering it to the UK?

​Did you order from that shop?

I've got the original one and the new one. To be honest I prefer the original but the new one is still quite smart. Heart monitoring is fairly dodgy and it does scratch. Still looks sharp and I like the watch function. The best bit about both of them is the alarm clock. It wakes you up gently and doesn't wake up the rest of the house-ie the sleeping baby in the next room.

Let's see

Constant HR
Yes it does. Links into endomondo and others.
Can you set a pace for running
Yes
Can it warn for a set HR limit
Yes
Does it show the time when you tilt your wrist
Yes, just don't do it every 2 seconds or it thinks you're exercising or doing street mime and suitably ignores you
Does it give x amount of detail on every notification from your phone
No, but enough to tell you answer a call or a message for later.
Can it see the future
Yes of course send me money and I'll show you how.
Why can't it beam me up
Because you're probably a space cadet already (possibly)
Is cheap, it works (it talks in Chinese on the app -can't win them all but it is in English)
If you want to splurge plenty on expensive tat go right ahead. If you want something genuinely useful for training this is great.
How do you know
I've got one, delivered in 6 days for £27ish
Top tips
Don't download Google play version go to xiaomi website for latest.
Create account on website too not on app
Press little running man for constant HR and other settings.
A lazy Google will show you all the tricks to get it working.