I suggest going not from the current situation and not from the minimum, but from the maximum
Connect for a month unlimited, on all fronts
Do not deny yourself anything
After the expiration of the term, conduct an analysis
In addition to what has already been written, you need to consider how often you surf the Internet outside of your home (I mean home wi-fi). And one more factor - what network do you have (2,3,4 G). To determine how much you need, take an average package to start with (2-3GB). At the end of the month, see how much you have left / how much you lacked. Based on this, change the tariff
In any smartphone there is an opportunity to see statistics of traffic consumption, thanks to which it is easy to determine which applications and services are the most voracious for you.
A counter of outgoing minutes to numbers of other operators and traffic consumption is also available in the Yota mobile application.
At the same time, we understand that ideal ready-made service packages do not exist, since each user has a different consumption profile: someone likes long telephone conversations and does not use the Internet much from a smartphone, someone, on the contrary, needs the maximum number of gigabytes and almost no minutes are needed. In addition, the consumption profile of each user can change from month to month. For example, you went on vacation for two weeks and you know for sure that you will talk less and plan to use the Internet as little as possible.
Therefore, we have offered Yota clients a completely new line of services that helps to customize their optimal package in a few clicks. In the mobile application, everyone can choose the required package of minutes, the required number of gigabytes, unlimited access to the most popular social networks and instant messengers, for example, only to Instagram and WhatsApp, unlimited or single SMS. It is important that you can change the set of services in the package every month. It's free.
Determine how often you call and for what purposes you use the Internet. To understand the volume of a call package, answer the following questions:
How many calls do you make per day on average?
What is the average call duration?
What percentage of calls are on the internal network?
What other networks do you call more often?
Do you call other regions?
To do this, order the details of calls in the "Personal Account" on the operator's website at least 3 months in advance, and preferably six months in advance.
If you can't figure out how to order detailing from your operator, then install an application that will prepare statistics of your conversations by itself. Choose from Google Play or the App Store.
In order to determine the volume of mobile Internet traffic, you also need to understand your standard needs. According to vc.ru, viewing one page of text weighs from 50-60 KB, together with photos and pictures - 200-500. One listening or downloading an audio clip is 3-5 MB, viewing a movie or streaming video - from 700 MB. Audio communication via Skype - about 128-130 KB per minute. Social networks are constantly updated, this is also the use of a certain number of megabytes. A visual statistic is shown here: