Your television has a great picture, good sound, and works perfectly, but it won't open any streaming apps. A familiar situation?

Many people see this as a reason to spend thousands of reais on a new device, when the real solution costs a fraction of that.

Small devices connected to the HDMI input handle all the processing and deliver to your television exactly the same features as a modern Smart TV.

In this guide, you will understand what options are available, how much they cost, how to install them step by step, and what to check before buying.

Is it really possible to transform a regular TV into a Smart TV?

Yes, and the results often exceed the expectations of those who have never tried it.

What makes a television smart is not the screen itself, but the operating system that runs behind it and allows you to install applications.

When you connect an external device, you simply add that system to your TV, which then functions solely as a display monitor.

In practice, the experience is identical to that of a factory-installed Smart TV, with its own home screen, app store, and dedicated remote control.

It's worth noting that this solution also works for older Smart TVs that have become slow. Models that are five years old or more often freeze when opening current apps, and an external device solves the problem without replacing the television.

Before you begin: what to check on your television

Before buying anything, do a quick check on your device. It takes less than five minutes and prevents you from buying the wrong thing.

Look at the back or side of the television and identify which inputs are available. This detail completely defines the path to follow.

HDMI input, USB resolution and power supply.

An HDMI input is the primary requirement. Virtually all televisions manufactured since 2008 have at least one.

Also check your TV's resolution. If it's Full HD, there's no point in investing in a 4K device, as the screen won't be able to display that quality.

Also check if there is a USB port near the HDMI port. Many sticks are powered directly by it, eliminating the need for an extra power outlet and making the installation cleaner.

Finally, measure the available space around the HDMI input. For wall-mounted televisions, you may need to use a small extension cable, usually included in the box.

What to do if your TV doesn't have HDMI?

Very old televisions, with only red, white, and yellow RCA inputs, can still be modernized.

In this case, you need to use an HDMI to RCA converter, sold separately at an affordable price.

The caveat is that image quality will be limited to the standard of analog input, without high definition.

If the television is very old, it's worth calculating whether the investment in the converter box plus the set-top box is worthwhile compared to a new basic model.

The main types of devices available

You'll find these products under different names in stores, which can often be confusing when you're shopping.

You sticksThese devices, also called dongles, are small and connect directly to the HDMI input, remaining hidden behind the television. They are the most popular option due to their size and price.

To the TV boxes These are slightly larger cases that sit on a rack and usually offer more processing power, extra ports, and better gaming performance.

Regardless of the format, what truly defines the experience is the operating system. In Brazil, there are four main ecosystems in 2026: Roku, Amazon, Google, and Apple.

The best devices to turn your TV into a Smart TV.

The choice basically depends on two factors: your television's resolution and the voice assistant you already use at home.

Check out the main categories and what each one offers.

Full HD input options

THE Roku Streaming Stick HD It frequently appears as the best value for money in its category. It delivers 1080p streaming, has a compact form factor that hides behind the TV, and can be powered via its own USB port.

The Roku system is praised for its simplicity and lightweight design, with an organized home screen and quick remote control response.

THE Fire TV Stick HDThe Amazon Alexa remote is the perfect choice for Alexa users. This voice-activated remote searches for content, opens apps, and even controls the power, volume, and functionality of your television.

THE Intelbras Izy Play It's a national alternative with Android TV and a warranty in Brazil, generally in the same price range as entry-level competitors.

4K options

If your television is 4K, the most commonly cited models on the Brazilian market are... Fire TV Stick 4K, the Roku Express 4K and the Xiaomi TV Stick 4K.

They all offer HDR support, more vibrant colors and better definition, as well as faster processors that reduce lag.

THE Roku Streaming Stick 4K Plus It is often highlighted for its balance between performance and neutrality, working with Alexa, Google Assistant, and Siri.

Already Apple TV 4K It's the premium option, recommended for those who already use an iPhone and want full integration with the brand's ecosystem.

When is it worth investing in the most expensive model?

The rule is simple: only invest in 4K if your television supports that resolution and if your internet connection delivers at least a stable 25 Mbps.

Outside of those conditions, the entry-level model offers the exact same user experience for less than half the price.

It's worth considering the higher-end model if you have many apps installed or notice slow performance on basic devices.

Side-by-side comparison

The prices above are approximate ranges and change frequently, especially on promotional dates. Confirm the current price on the official website or with the retailer before completing your purchase.

Alternatives without buying a new device.

If you want to test before investing, there are ways to make use of equipment you already have at home.

Cell phone mirroring

Most current smartphones allow you to mirror your screen on a television, provided the television is also compatible with the function.

For televisions without this capability, a mirroring adapter connected to the HDMI port solves the problem, for a very low cost.

The drawback is that the phone remains occupied during the display, and battery consumption increases significantly.

Notebook and HDMI cable

Connecting a laptop to a television using an HDMI cable is the simplest solution and costs nothing besides the cable itself.

You can access any service through your browser, with the advantage of not depending on specific applications.

The downside is practicality: turning the laptop on and off every time gets tiring quickly with daily use.

Videogames as a streaming hub

If you have a PlayStation or an Xbox connected to your TV, you already have a complete streaming hub.

Current consoles run the main applications and allow you to install new ones from the official store at no additional cost.

Step-by-step instructions for installing and configuring.

Installation is much simpler than it seems. Follow these steps:

A practical tip: if your internet connection is unstable, opt for models that support a wired network connection or position the router closer to the television.

Which apps will you be able to use later?

Once configured, the device unlocks access to virtually the entire ecosystem of content available in Brazil today.

Subscription services include Netflix, Prime Video, HBO Max, Disney+, Apple TV, Paramount+, and Globoplay, covering new releases and the best series currently available.

In the free tier, you can install Pluto TV, Plex, and the official apps of Brazilian broadcasters, with live channels at no cost.

YouTube, music services, and casual games are also available, greatly expanding the use of television.

Things to be careful about when buying.

Here's an important warning. When searching for these devices, you'll find offers that promise to unlock paid channels.

These products are illegal. Anatel prohibits the sale of non-approved devices and warns that they can interfere with other equipment and create security vulnerabilities in the home network.

Furthermore, accessing content without authorization violates the Copyright Law, Law No. 9.610/98.

The recommendation is to only buy models from recognized brands in reputable stores, and to consult the list of approved devices on the agency's official website if in doubt.

Tips to improve performance and image quality.

Some simple adjustments can make a huge difference in the final result.

Keep your device updated. Manufacturers release periodic patches that improve stability and app compatibility.

Avoid leaving many unused applications installed, as this consumes memory and slows down the system.

In the television's picture menu, try the cinema or movie mode, which usually delivers more accurate colors than the factory default mode.

Conclusion

Transforming a regular TV into a Smart TV is one of the smartest ways to save money without sacrificing current technology.

With a modest investment, you gain access to streaming, live channels, apps, and voice features, while keeping the television that already works well.

The secret lies in choosing a device compatible with your TV's resolution and always buying from reliable sources.