O plano de celular inclui uma franquia de dados.

In this sentence, franquia de dados means data allowance, data cap, or data quota on a mobile plan.

Even though franquia often means franchise in other contexts, in Brazilian telecom language it commonly refers to the amount of data included in a plan. So here it does not mean a business franchise.

For example:

• franquia de 10 GB = a 10 GB data allowance
• acabou a franquia = the data allowance ran out

Celular means cell phone / mobile phone, but plano de celular means a cell phone plan or mobile plan.

The structure noun + de + noun is very common in Portuguese and often works like noun + noun or noun of noun in English.

So:

• plano = plan
• celular = cell phone
• plano de celular = cell phone plan / mobile plan

In everyday Brazilian Portuguese, this is a natural way to refer to a phone service plan.

O is the masculine singular definite article, meaning the.

It is used because plano is a masculine singular noun:

• o plano = the plan

Portuguese uses articles more often than English does, so a sentence like this normally sounds more natural with O than without it.

Uma means a or one, and it is the feminine singular indefinite article.

It is uma because franquia is a feminine noun:

• a franquia = a data allowance
• uma franquia = a data allowance

So the gender agreement is:

• o plano
• uma franquia

Inclui is the third-person singular form of the verb incluir in the present tense.

The subject is O plano, which is singular, so the verb must also be singular:

• incluir = to include
• o plano inclui = the plan includes
• os planos incluem = the plans include

So inclui matches o plano.

In Brazilian Portuguese, inclui is pronounced roughly like een-kloo-EE.

A few helpful points:

• in- often sounds like een
• clu sounds like kloo
• the stress is on the last syllable: -i

So: in-clu-Í

In Portuguese, dados is usually used in the plural when talking about data in the digital/mobile/internet sense.

So:

• dados móveis = mobile data
• franquia de dados = data allowance
• uso de dados = data usage

This is normal in Brazilian Portuguese, even though English often uses data as an uncountable noun.

Plano de celular is natural and easy to understand in Brazil. But there are other common ways to express similar ideas, depending on context:

• plano móvel = mobile plan
• plano de telefone = possible, but less common in this specific sense
• plano de dados = data plan
• plano do celular = the cell phone’s plan / the plan for the phone, depending on context

If you specifically mean a phone service plan from a carrier, plano de celular is a good everyday choice.

Yes. In natural English, inclui can often be translated as either includes or comes with, depending on the tone.

So this sentence could be understood as:

• The cell phone plan includes a data allowance.
• The mobile plan comes with a data allowance.

Includes is closer to the Portuguese wording, but comes with can sound more natural in casual English.

Not exactly, though they are related and sometimes overlap in real usage.

• franquia de dados usually emphasizes the allowed amount of data included in the plan
• pacote de dados often means a data package or data bundle

For example:

• O plano inclui uma franquia de dados de 20 GB. = The plan includes a 20 GB data allowance.
• Comprei um pacote de dados extra. = I bought an extra data package.

So franquia is often about the limit or included quota, while pacote can suggest an add-on or bundle.

Yes. That is also natural.

• inclui = includes
• tem = has

So:

• O plano de celular inclui uma franquia de dados.
• O plano de celular tem uma franquia de dados.

Both are correct, but inclui sounds a little more formal or promotional, which fits how companies often describe plan features.

A close breakdown is:

• O = the
• plano = plan
• de = of / for
• celular = cell phone / mobile phone
• inclui = includes
• uma = a
• franquia = allowance / quota
• de dados = of data

So a literal version would be something like:

The cell-phone plan includes a data allowance.

Or more literally:

The plan of cell phone includes a data quota.

The natural English translation is usually The mobile plan includes a data allowance or The cell phone plan includes data.