No—most people with a Samsung Smart TV do not need a Roku just to stream. Samsung TVs have their own app platform. A Roku can still be useful if you prefer its interface, need an app that is unavailable on your particular TV, or want a streaming player you can move between TVs. You can connect a Roku to a Samsung TV through HDMI, and supported setups can use the Samsung universal remote to control it.
What each device does
A Samsung Smart TV provides streaming apps through Samsung’s TV platform. Samsung has an app store, but you can install only apps available for your particular TV; availability can vary by model and region. Check the apps listed for your exact TV before buying another device. Samsung’s app support page explains how to find and manage apps.
A Roku player is an additional streaming interface that connects to the TV’s HDMI port. It does not replace the television, and it is not automatically a picture-quality upgrade: if the Samsung TV already supports the same video formats, adding Roku alone does not establish that the picture will improve.
When adding a Roku makes sense
- You want Roku’s interface. If you prefer its menus or search experience, you can use it on the Samsung TV instead of navigating the TV’s built-in platform for streaming.
- An app you want is missing from your TV. App availability depends on the exact Samsung model and region. Confirm that the app is available on the Roku model you plan to use before purchasing.
- You want portability. A Roku player can be unplugged and connected to another compatible TV, which may be useful when moving between rooms or taking it along while traveling.
- You need a specific supported video format. Roku Streaming Stick 4K advertises 4K, Dolby Vision, and HDR10+. Those features matter only when the TV, selected HDMI input, and streaming content support the relevant format.
Check 4K and HDR compatibility before choosing
Roku says Streaming Stick 4K model 3820 works with a TV that has an HDMI port. It will still work if the TV lacks 4K or HDR support, but those picture features will not display. Roku lists Dolby Vision, HDR10/10+, and HLG support for the product, subject to compatible equipment and content. These are manufacturer specifications, not a guarantee that a particular Samsung TV or show will use every format. See Roku’s Streaming Stick 4K specifications and its TV and HDMI requirements.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →#1 Best Overall
- HD streaming made simple: With America’s number 1 TV streaming platform,* exploring popular apps—plus tons of free movies, shows, and live TV—is as easy as it is fun. *Based on hours streamed—Hypothesis Group
- Compact without compromises: The sleek design of Roku Streaming Stick won’t block neighboring HDMI ports, and it even powers from your TV alone, plugging into the back and staying out of sight. No wall outlet, no extra cords, no clutter.
- No more juggling remotes: Power up your TV, adjust the volume, and control your Roku device with one remote. Use your voice to quickly search, play entertainment, and more.
- Shows on the go: Take your TV to-go when traveling—without needing to log into someone else’s device.
- TV, simplified: With setup that only takes minutes, a simple-to-navigate Home Screen, and an uncluttered remote control that does all you need—Roku makes it easier to watch the TV you love.
On supported Samsung TVs, the 4K-connected HDMI port may need UHD HDMI Color enabled; Samsung also labels this setting Input Signal Plus. The menu path and availability vary by model. Samsung’s device-connection instructions describe the setting for supported TVs. A separate Premium High Speed HDMI cable is recommended by Roku for certain 4K/HDR player setups; a Streaming Stick plugs directly into the TV and does not need that separate cable.
Connect Roku to a Samsung TV
- Plug the Roku into an available HDMI port. For a Streaming Stick, connect it directly to the TV and attach power as directed in its setup instructions.
- Select that HDMI input on the TV. Use the Samsung remote’s source or input controls and choose the port where Roku is connected.
- Complete Roku setup and activation. Follow the on-screen steps to connect to your network and activate the device with a Roku account. Roku says an account is free and there is no activation fee.
- If needed, configure Samsung’s universal remote. Samsung documents control of supported HDMI-connected devices, including Roku, after setup. The exact steps and available controls depend on the TV, remote, and configuration; some setups may rely on HDMI-CEC. See Samsung’s universal-remote instructions and Roku’s Streaming Stick 4K setup guide.
Compare the practical trade-offs
| Question | Samsung TV alone | Samsung TV with Roku |
|---|---|---|
| Apps | Uses apps available for the specific TV model and region. | Adds Roku’s app platform; confirm the app you need is available for that Roku model. |
| Interface | Uses Samsung’s built-in TV platform. | Lets you use Roku’s separate streaming interface. |
| Picture formats | Limited to the TV’s supported formats and the content being played. | Player features such as 4K and HDR require compatible TV hardware, HDMI setup, and content. |
| Remote | Uses the Samsung remote for the TV’s built-in apps. | A supported Samsung universal remote may control Roku after configuration; behavior varies by setup. |
| Accounts | Samsung states a Samsung account is required for network smart services and full Tizen features in the US. | Roku setup also requests a Roku account for activation; Roku says it is free and has no activation fee. |
Samsung’s account statement applies to the US; requirements and services can differ elsewhere. For Samsung account details, see Samsung’s support information.
Quick Recap
Best Value
- Streaming made easy: Roku Express lets you stream free, live and premium TV over the Internet—right to your TV. It’s perfect for new users, secondary TVs and easy gifting—but powerful enough for seasoned pros
- Quick and easy setup: Just plug it into your TV with the included High Speed HDMI Cable and connect to the internet to get started
- Tons of power, tons of fun: Compact and power-packed, you’ll stream your favorites with ease; from movies and series on Apple TV, Prime Video, Netflix, The Roku Channel, HBO, Showtime and Google Play to cable alternatives like Hulu with Live TV and PlayStation Vue, enjoy the most talked about TV across free and paid channels
- Low cost, no extra fees: For under $30, Roku Express streaming device includes a High Speed HDMI Cable—and there’s no monthly equipment fee; with access to free TV on hundreds of channels, there’s plenty to stream without spending extra
- Simple remote: Incredibly easy to use, this remote features shortcut buttons to popular streaming channels
Rank #4
- Stunning 4K and Dolby Vision streaming made simple: With America’s number 1 TV streaming platform,* exploring popular apps—plus tons of free movies, shows, and live TV—is as easy as it is fun. *Based on hours streamed—Hypothesis Group
- Breathtaking picture quality: Stunningly sharp 4K picture brings out rich detail in your entertainment with four times the resolution of HD. Watch as colors pop off your screen and enjoy lifelike clarity with Dolby Vision and HDR10+.
- Seamless streaming for any room: With Roku Streaming Stick 4K, watch your favorite entertainment on any TV in the house, even in rooms farther from your router thanks to the long-range Wi-Fi receiver.
- Shows on the go: Take your TV to-go when traveling—without needing to log into someone else’s device.
- Compact without compromises: Our sleek design won’t block neighboring HDMI ports, so you can switch from streaming to gaming with ease. Plus, it’s designed to stay hidden behind your TV, keeping wires neatly out of sight
Rank #3
- 4K streaming made simple:With America’s number 1 TV streaming platform,* exploring popular apps—plus tons of free movies, shows, and live TV—is as easy as it is fun. *Based on hours streamed—Hypothesis Group
- 4K picture quality: With Roku Streaming Stick Plus, watch your favorites with brilliant 4K picture and vivid HDR color.
- Compact without compromises: Our sleek design won’t block neighboring HDMI ports, and it even powers from your TV alone, plugging into the back and staying out of sight. No wall outlet, no extra cords, no clutter.
- No more juggling remotes: Power up your TV, adjust the volume, and control your Roku device with one remote. Use your voice to quickly search, play entertainment, and more.
- Shows on the go: Take your TV to-go when traveling—without needing to log into someone else’s device.
Rank #2
- Ultra-speedy streaming: Roku Ultra is 30% faster than any other Roku player, delivering a lightning-fast interface and apps that launch in a snap.
- Cinematic streaming: This TV streaming device brings the movie theater to your living room with spectacular 4K, HDR10+, and Dolby Vision picture alongside immersive Dolby Atmos audio.
- The ultimate Roku remote: The rechargeable Roku Voice Remote Pro offers backlit buttons, hands-free voice controls, and a lost remote finder.
- No more fumbling in the dark: See what you’re pressing with backlit buttons.
- Say goodbye to batteries: Keep your remote powered for months on a single charge.
How to decide
- Keep using the Samsung TV alone if it has the apps you use and you are happy with its interface and remote.
- Add Roku if its interface is your preference, it provides an app you cannot get on your TV, or portability is useful to you.
- Check specifications first if your reason is 4K or HDR: match the Roku’s supported formats to the TV, HDMI input settings, and content you actually watch.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
