Thiết bị đã đến.

Thiết bị means device, equipment, or apparatus, depending on context.

A few useful notes:

• thiết relates to setting up or equipping
• bị here is part of the noun thiết bị; it is not the passive marker bị in this sentence

So thiết bị is a fixed noun meaning something like equipment/device.

Because Vietnamese nouns usually do not show singular vs. plural by themselves, thiết bị could mean:

• the device
• a device
• the equipment
• the devices

The context tells you which one is intended.

Đã is a very common marker that often shows that something happened in the past or is viewed as completed.

In Thiết bị đã đến, đã tells you that the arriving has already happened.

A very natural English equivalent is:

• The device arrived.
• The device has arrived.

Vietnamese does not match English tenses one-to-one, so đã is not exactly the same as the English past tense ending. It is better to think of it as an aspect/time marker that helps place the action before now or marks it as completed.

Here, đến means to arrive or to come.

So in this sentence:

• Thiết bị = the device / the equipment
• đã = already / past-completed marker
• đến = arrived / has come

Do not confuse this use with other meanings of đến, such as:

• đến trường = go/come to school
• đến đây = come here
• đến lúc = when it is time

In Thiết bị đã đến, đến is best understood as arrive.

Vietnamese normally does not use articles like English a, an, and the.

So thiết bị can mean:

• a device
• the device
• device(s)
• equipment

The context decides which English translation sounds best.

That is very normal in Vietnamese. Learners often want to insert an article mentally, but Vietnamese usually just does not need one.

By itself, thiết bị is neutral with respect to number. It does not automatically tell you whether there is one device or several.

So depending on context, this could mean:

• The device has arrived.
• The equipment has arrived.
• The devices have arrived.

If Vietnamese speakers want to make plurality clearer, they can add words such as:

• các thiết bị = the devices / devices
• những thiết bị = some devices / the devices

Without that, number is often left to context.

The pattern is:

Subject + aspect marker + verb

So:

• Thiết bị = subject
• đã = aspect/time marker
• đến = verb

This is a very common Vietnamese sentence structure.

Compare:

• Tôi đã ăn. = I ate / I have eaten.
• Anh ấy đã về. = He went home / He has gone home.
• Thiết bị đã đến. = The device arrived / has arrived.

It can match either one, depending on context.

In many situations, Thiết bị đã đến is very naturally translated as:

• The device has arrived.

This is especially true if the speaker is informing someone of the current result.

But it could also be:

• The device arrived.

So the Vietnamese sentence does not force exactly one English tense. It gives the idea that the arrival happened already.

Yes, but the meaning becomes less clearly tied to the past/completed action.

• Thiết bị đã đến = The device has arrived / arrived already
• Thiết bị đến = The device comes / is coming / arrives, depending on context

Vietnamese often relies on context, so sometimes đã can be left out if the time is already obvious. But if you want to clearly say the device already arrived, đã is very helpful.

Yes. Thiết bị đến rồi is also very natural and often sounds even more conversational.

rồi often adds the sense of already or now it has happened.

So:

• Thiết bị đã đến.
• Thiết bị đến rồi.

Both can mean The device has arrived.

Very roughly:

• đã often sounds a bit more like a past/completion marker
• rồi often emphasizes the resulting state: already

You may also hear:

• Thiết bị đã đến rồi.

This is also possible and adds extra emphasis that it has indeed arrived already.

In many everyday situations, đến and tới can both mean arrive or come to.

So you may hear:

• Thiết bị đã đến.
• Thiết bị đã tới.

Both are natural.

In many contexts, the difference is small. Đến is extremely common and very standard. Tới is also common in speech. Which one sounds more natural can depend on region and habit.

For a learner, đến is a very safe choice.

A rough guide is:

• Thiết ≈ thiet with a rising tone
• bị ≈ bee with a heavy, low-falling tone
• đã ≈ zah with a broken/rising creaky tone
• đến ≈ den with a rising tone

Tone notes:

• thiết: sắc tone
• bị: nặng tone
• đã: ngã tone
• đến: sắc tone

A rough English-style approximation is not perfect, but you could think of it as something like:

thiet bee zah den

with the correct tones added.

If you want to sound natural, the tones matter a lot more than in English.

It is neutral and perfectly natural.

You could use it in contexts like:

• work
• shipping or delivery updates
• office communication
• technical discussion

It is not especially formal, but it is not slangy either.

If you wanted a more conversational feel, you might say:

• Thiết bị tới rồi.
• Thiết bị đến rồi.

If you wanted something more explicit, you could say:

• Thiết bị đã được giao đến. = The equipment has been delivered.

But Thiết bị đã đến is already a very normal sentence.

Vietnamese often allows very compact sentences when the context is already known.

If everyone already knows which device is being discussed, then Thiết bị đã đến is enough.

English often wants more detail, such as:

• The device has arrived at the office.
• The equipment has arrived.
• Our device has arrived.

Vietnamese can leave those details out if they are understood from the situation.

Yes, absolutely.

That is one reason this sentence can feel a little flexible in English.

Depending on the situation:

• Thiết bị đã đến. = The equipment has arrived.
• Thiết bị đã đến. = The device has arrived.

If you are talking about machinery, lab tools, office hardware, medical equipment, or technical gear, thiết bị often works well as equipment. If you are talking about one specific item, device may fit better.