Здорово! Будем на связи.

Here Здорово! means Great!, Awesome!, or Sounds good!

It can also be used as a very colloquial greeting in some contexts, similar to Hey!, but in this sentence it is much more naturally understood as a reaction: Great!

A useful distinction:

• Здорово! = Great! / Cool!
• Здорово as a greeting = very informal Hi!

So in Здорово! Будем на связи., it sounds like:

• Great! We’ll keep in touch.

Будем is the 1st person plural future form of быть (to be), so it already means we will be.

Russian often leaves out subject pronouns when they are clear from the verb form. So:

• Будем на связи = (We) will be in touch

You could say Мы будем на связи, but мы is usually unnecessary unless you want emphasis or contrast.

На связи is a fixed expression that literally means something like on the line / in contact / reachable, but idiomatically it means:

• in touch
• reachable
• available for communication

So Будем на связи is a natural Russian equivalent of:

• We’ll keep in touch
• We’ll stay in contact
• Let’s stay in touch (depending on context)

This is a very common phrase in both personal and work communication.

The preposition на often takes the prepositional case when it indicates location or state.

Here:

• связь = connection / contact
• prepositional singular = связи

So:

• на связи = literally in contact / on the connection

It is best learned as a set phrase, because the full literal logic is less important than the idiomatic meaning.

It is neutral-colloquial and very common.

It works well in:

• everyday conversation
• texting
• emails
• work chats
• friendly business communication

It is not rude or slangy, but it is also not especially formal. In very formal writing, people might choose other phrases depending on the context, but Будем на связи is widely acceptable and natural.

Yes, Останемся на связи is also correct.

The difference is subtle:

• Будем на связи = We’ll be in touch
• Останемся на связи = We’ll stay in touch

Останемся emphasizes remaining in contact.
Будем is more neutral and very common as a general closing phrase.

Both are natural, but Будем на связи is especially frequent in modern spoken Russian.

The stress is on the first syllable:

• Здо́рово

Approximate pronunciation:

• ZDO-ro-va

A few pronunciation notes:

• the unstressed о sounds closer to a than a clear English o
• so it may sound roughly like ZDO-rə-və to an English speaker

This is different from how it is spelled, which is normal in Russian.

Yes, very often.

It is a common way to end a conversation or message when you expect further communication. For example, after making plans, discussing work, or agreeing to talk later.

Typical English equivalents:

• We’ll be in touch
• Let’s stay in touch
• Talk soon
• I’ll keep in touch / We’ll keep in touch

The exact English translation depends on context, but the Russian phrase itself is very natural as a closing.

Yes. It sounds completely natural with friends.

It can also be used with coworkers or acquaintances. The only part to watch is Здорово!, which is clearly informal and conversational. If you wanted a more neutral reaction, you might choose something like:

• Отлично!
• Хорошо!

But Здорово! Будем на связи. is a normal, friendly, casual way to speak.

Yes, and that is exactly how it works.

They are two short sentences:

• Здорово! = reaction: Great!
• Будем на связи. = follow-up: We’ll stay in touch.

This kind of short, compact phrasing is very common in Russian conversation and messages. It sounds natural, friendly, and efficient.