Almost every TV you can buy in 2026 is a smart TV, but that label covers a lot of ground. A smart TV connects to the internet, runs apps like Netflix and YouTube, lets you cast from your phone and can often work with your voice assistant and smart-home gadgets. In this guide, I'll explain what a smart TV can actually do, how the main platforms differ, what to check before buying and how to make an older TV smart without replacing it.
What is a smart TV?
A smart TV is a regular television with a small computer and an operating system built in. Besides live TV and anything you plug in over HDMI, it can run apps for streaming video and music, news, fitness, games and video calls. Most current models come with the big services such as Netflix, YouTube, Prime Video, Disney+, Apple TV and Spotify, although the exact selection depends on the brand, model, country and software version. Some apps come preinstalled and others you download from the TV's app store.
To use the online features, you connect the TV to your home network over Wi-Fi or an Ethernet cable. A cable is the most stable option for high-bitrate 4K streaming, cloud gaming or homes with a crowded wireless network, but a good Wi-Fi signal is enough for most people, especially if both the router and the TV support recent Wi-Fi standards.
Are all smart TVs the same?
Not at all. The picture is what grabs your attention in the store, but the operating system shapes how the TV feels every day. It decides which apps you can install, how fast the menus respond, how recommendations and ads work, which voice assistants you can use and how long the TV will keep getting software and security updates.
The hardware matters just as much. The processor, memory and storage, plus how well the manufacturer has optimized everything, mean that two TVs running the same platform can feel completely different. A cheap model with a slow chip can lag even on a great operating system, so always check the exact model rather than assuming every TV from one brand behaves the same.
What can a smart TV do?
The main job is streaming: movies, series, live channels, music and podcasts straight from the apps, without a separate box. Keep in mind that subscriptions are paid separately and aren't included in the price of the TV. You can also send content from your phone, tablet or laptop, since most smart TVs support at least one of Google Cast, Apple AirPlay, Miracast or the manufacturer's own sharing feature.
Many models have a microphone in the remote or the TV itself for voice search and hands-free control, although what works depends on the platform, language and region. Smart TVs can often act as a smart-home hub as well, showing your doorbell camera or controlling lights through Google Home, Amazon Alexa, Apple Home, Samsung SmartThings or LG ThinQ.
You'll also find casual games, cloud gaming apps and, on some models, video calls with a USB or phone camera. For serious gaming, though, features like low input lag, HDMI 2.1 and a 120 Hz panel matter far more than the smart platform.
The main smart TV platforms
Which platform you get depends on the brand, region, screen size and model year. Here's a quick overview of the most common ones:
Google TV and Android TV
Google TV is the newer, content-focused interface built on top of Android TV. It's used by brands like Sony, TCL and Hisense and offers one of the biggest app catalogs, excellent search, built-in Google Cast and tight integration with Google services. Android TV is still found on some devices, but Google TV is now the main experience on new models. Our comparison of Android TV and Google TV explains the differences in detail.
Samsung Tizen
Samsung uses its own Tizen system, now branded as One UI Tizen on newer TVs. It's polished and quick, has all the major streaming apps, free Samsung TV Plus channels and SmartThings integration, and works especially well with Samsung phones. Its app store is separate from Google's, so check niche apps before buying.
LG webOS
LG's webOS is known for simple navigation and the Magic Remote, which lets you move a pointer on the screen by pointing the remote, much like a mouse. It covers the major streaming services and works with LG ThinQ, but specialist apps are worth checking before you buy.
Amazon Fire TV
Fire TV is built around Amazon's content and Alexa and appears on Amazon's own TVs as well as some models from other brands. It's convenient if you already use Prime Video, Alexa speakers or Ring cameras, but the home screen leans heavily on recommendations and promotions.
Roku TV
Roku TV is popular in the US for its simple interface and huge selection of streaming channels, and it's found on TVs from brands like TCL and Hisense. Availability outside North America is limited, so check that both the TV and your local apps are supported if you live elsewhere.
VIDAA, Titan OS, TiVo OS and others
Smaller platforms like Hisense's VIDAA, Titan OS and TiVo OS aim to be fast and easy to use and are showing up on more budget and mid-range TVs. They usually cover the major services, but their app catalogs are smaller than those of the big platforms, so make sure every app you rely on is available on the exact model.
Here's how the main platforms compare at a glance:
| Platform | Found on | Best for | Casting |
|---|---|---|---|
| Google TV | Sony, TCL, Hisense and others | Biggest app choice, great search | Google Cast built in, AirPlay on some models |
| Samsung Tizen | Samsung | Polished interface, Samsung phones, SmartThings | AirPlay, Samsung Smart View |
| LG webOS | LG | Easy navigation, Magic Remote pointer | AirPlay, screen sharing |
| Fire TV | Amazon and selected brands | Prime Video, Alexa and Ring users | Display mirroring, AirPlay on some models |
| Roku TV | TCL, Hisense and others (mainly US) | Simplicity, huge channel selection | AirPlay on many models |
| VIDAA, Titan OS, TiVo OS | Hisense, Philips and budget brands | Fast, simple menus on cheaper TVs | Varies by model |
Casting support varies by model and year, so check the exact TV before buying.
How to choose the right smart TV platform
Start with apps. Make a short list of the services you can't live without, including local channels, sports apps, smaller streaming platforms and cloud gaming, and check that each one supports the TV you're considering. Then look at speed. If you can, try the exact model in a store: open a few apps, go back to the home screen, try a voice search and switch inputs. Entry-level hardware can get sluggish quickly, even on a well-known platform.
Updates matter too, because feature updates, app support and security patches don't last for the whole life of the panel. Look for a clear update policy, and remember that a cheap streaming stick can extend the life of a TV whose built-in software has aged.
It also makes sense to match your phone: iPhone owners will appreciate AirPlay and Apple Home support, Android users may prefer Google Cast and Google Home, and Samsung or LG households get extra features from SmartThings or ThinQ.
Finally, think about privacy and accessibility. Smart TVs can collect viewing and usage data for recommendations and ads, so during setup, review automatic content recognition (ACR), personalized ads, voice recordings and data sharing, and turn off anything you don't need.
If anyone in your home needs them, check for screen reader support, subtitles, audio description, dialogue enhancement and Bluetooth hearing devices. Our guide to the best TV brands can help you narrow down the options.
How to check whether your TV is a smart TV
Find the exact model number on the back of the TV or in the settings menu, then look it up on the manufacturer's website or in the manual. Search for terms like Smart TV, Google TV, Android TV, Tizen, webOS, Fire TV, Roku TV or VIDAA.
Open the home screen or settings. An app store, streaming app icons, network settings, casting options or an account sign-in are clear signs of a smart TV.
Check the network menu rather than just looking for an Ethernet port. Some older "connected" TVs have very limited or discontinued app support.
How to make your old TV smart
If your TV still has a great picture but its software is slow or no longer supported, you don't need to replace it. As long as it has a free HDMI port, you can plug in a streaming device. Popular options include the Apple TV 4K, the Roku Streaming Stick, Amazon's Fire TV sticks and the Google TV Streamer. Game consoles like the PS5 and Xbox Series X|S also run the major streaming apps.
A streaming device usually gives you a faster interface and newer apps, but it does add another box, power cable and remote. Thanks to HDMI-CEC, the streaming remote can often control your TV's power and volume too.
Before you buy, check support for 4K, the HDR formats your TV handles, Dolby Atmos and frame-rate matching, and whether you need an Ethernet port. Our ranking of the best streaming devices compares the top picks, and our guide to choosing an HDMI cable helps if you need a new one.
Smart TV buying checklist
Confirm that every streaming and local app you need is available on the exact model.
Check how fast the interface feels and how many ads appear on the home screen.
Make sure it supports the casting, AirPlay, Bluetooth, voice and smart-home features you use.
Read the manufacturer's software update commitment and warranty terms.
For gaming, check the refresh rate, input lag, VRR, ALLM and the number of full-bandwidth HDMI 2.1 ports.
For home cinema, check HDR10, HDR10+, Dolby Vision, eARC and audio passthrough for your sound system.
Pick the right screen size for your room using our guide on what TV size to buy.
Review the privacy settings during setup and protect your account with a strong password and two-factor authentication.
Is a smart TV worth it?
For most people, the question has answered itself, because smart features are now standard rather than a premium extra. The best platform is the one that has all your apps, runs smoothly on the hardware you're buying, works with the devices you already own and will keep getting updates.
Just don't choose a TV on software alone. Picture quality, size, brightness, viewing angles, motion handling, sound, ports, energy use and gaming features still matter more in the long run.
If you find a TV with an excellent panel but a weak smart platform, a good streaming device is often the simplest fix. If picture quality is your priority, take a look at our ranking of the best OLED TVs.
