This is a simple calculation which knocked my mind about spending on the mobile.
I took an iPhone, a refabricated one and spent around 8000 bucks for it.
I thought like I could run the show for 2 years at least. I have successfully completed one year without any hiccups.
So the average spend on my mobile is 4000 per year.
Calculated as 4000/12 = 333.33 rupees per month.
And when my friend took an Android mobile of around 16000, everything has been doubled. Whatever you can with your Android phone, it hardly spans for not more than 2 years.
So he spent 8000 per year and 666 rupees per month.
If phone has been bought at 32000, it is 1332 rupees which is equal to the interest to be earned from FD of 16000 for per year.
It is better if you buying the phone, make an equal amount to FD to cover your expense on phone.