If you continue to go to the bank in person, here we tell you what you need to open a bank account online, in order to save time and money.
By provision of the Bank of Mexico (Banxico), currently, banking institutions in Mexico already have the Interbank Electronic Payment System (SPEI) service, in addition to offering customers the alternative of mobile payments, with the aim of increasing the use of banking and promote payment through cell phones.
Requirements
It is important to mention that each banking institution has different requirements, but the ones listed below are generally the ones that could be requested:
You must have a smart cell phone or personal computer with integrated internet and a bank account.
In case you do not have a bank account, you can go directly to the institution or do it online, thus avoiding long lines and thus making your corresponding request.

Valid official identification
Download the application on the phone and enter basic identification data, without physical proofs or copies, which speeds up the process since it must be completed and confirmed.
Verify the authenticity of the information sent. Either through photographs of personal identification, confirmation of an email, or the authentication mechanism established by the issuer, in order to verify that the information is correct.
Activate account. In this case, they could ask you to make the first deposit and/or purchase to activate the account, and sometimes you have to wait for the shipment of a physical plastic to your home. The users can follow all their transactions in real-time thanks to the previously installed app.
It is exactly the same as a savings or debit account that is opened in person, except that sometimes its requirements are more flexible, in the sense that there is no need for you to go to the branch, nor do you have to bring the documents.

You open the account more easily because you can enter the information yourself, confirm and send some documents for verification from wherever you are, and without long waiting times at the branch
Source: El Financiero
Mexico Daily Post