fitbit and calorie counting some questions

[purplemurple1]

Would a fitbit show me my total used cals each day?
Is it ok to eat the same bfast and lunch everyday to make counting easier?
We share cooking with mil, so I don't always know raw weights and recipes for dinners. How accurate does it need to be to work?

I've about 3 stone to lose is Christmas a realistic timeframe?

Bump

Would a fitbit show me my total used cals each day?

Yes, at least my Fitbit Charge HR does.

Is it ok to eat the same bfast and lunch everyday to make counting easier?

Yes, although it's unlikely that you'd eat exactly the same weight of each item every day.

We share cooking with mil, so I don't always know raw weights and recipes for dinners. How accurate does it need to be to work?

Try it and see. I think you should be as accurate as possible though. If you're not losing weight then you will know to be more accurate.

I've about 3 stone to lose is Christmas a realistic timeframe?

Yes