Roku Ultra 4850R Streaming Player
- Resolution: 4K
- Video Output Resolution: 3840 x 2160 Pixels
- Supported Internet Services: Apple TV+, Disney+, Hulu, Netflix, Prime Video
- Connector Type: HDMI
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A well connected streaming box for a 4K TV, with the wired Ethernet port worth prioritizing if home Wi-Fi is inconsistent.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B0DF44RTTPModel: 4850RCategory: Streaming Players
Overview
The Roku 4850R streams in 4K UHD and connects to a TV over HDMI, with Ethernet, USB, and Bluetooth on board along with Wi-Fi 6. It targets anyone assembling a home theater setup that wants a wired network option alongside wireless.
Roku's own spec sheet lists this unit as part of the Ultra line with Wi-Fi 6, which is worth knowing since the color field in the data just says Ultra rather than naming an actual finish. Ethernet plus Wi-Fi 6 support matters most for anyone streaming 4K content on a network with other heavy devices competing for bandwidth. Bluetooth is on board too, which typically covers private listening or a Bluetooth remote rather than just casting from a phone.
- 4K UHD streaming
- Wired Ethernet plus Wi-Fi 6
- Bluetooth connectivity
- HDMI and USB ports
Who it's for
Suits a household setting up or upgrading a TV that lacks smart apps, especially where a wired Ethernet connection is preferred over relying on Wi-Fi. Also fits anyone who wants Bluetooth audio support built into the streaming box itself. Less relevant for a TV that already runs its own smart platform well.
Pros and cons
- 4K UHD output
- Ethernet port as an alternative to Wi-Fi
- Wi-Fi 6 and Bluetooth both supported
- No specs given for internal storage or processor speed
Performance notes
Video output reaches 4K UHD over HDMI. The combination of Wi-Fi 6 and a physical Ethernet port means the connection method can be chosen based on what the router setup actually supports, rather than being locked into wireless only. USB rounds out the port selection for local media playback.
Specifications
| Brand | Roku |
|---|---|
| Model | 4850R |
| Dimensions & fit | |
| Item Weight | 0.04 pounds |
| Item Dimensions L X W X H | 5 × 4.9 × 1 inches |
| Capacity & performance | |
| Video Output Resolution | 3840 x 2160 Pixels |
| Construction & materials | |
| Color | Ultra (with Wi-Fi 6) |
| Compatibility & installation | |
| Connectivity Technology | Bluetooth, Ethernet, HDMI, USB, Wi-Fi |
| Compatible Devices | Smartphone, Tablet, Television |
| Smart Home Compatibility | Not Smart Home Compatible |
| Warranty & support | |
| Supported Internet Services | Apple TV+, Disney+, Hulu, Netflix, Prime Video |
| Warranty Description | 2 years |
| Other details | |
| Resolution | 4K |
| Connector Type | HDMI |
| Video Codec | H.264/AVC, H.265/HEVC, AV1, VP9, HDR10/10+, Dolby Vision |
| Control Type | App, Push Button, Remote, Voice |
| Form Factor | TV Box |
| Other Special Features Of The Product | Backlit, Parental Controls |
| Mfr Part Number | 4850R |
| Builtin Media | HDMI Cable, Power Adaptor, Roku Ultra Streaming Player, Roku Voice Remote Pro (2nd Edition), USB-C Charging (for Remote) |
| Controller Type | App Control, Button Control, Remote Control, Voice Control |
Frequently asked questions
Does the Roku 4850R support a wired internet connection?
Yes, it has an Ethernet port in addition to Wi-Fi 6 wireless.
Is the Roku 4850R part of the Roku Ultra lineup?
Its listing identifies it with the Ultra name and Wi-Fi 6, which points to the Ultra tier of Roku's streaming players.
Does the Roku 4850R stream in 4K?
Yes, it outputs 4K UHD video.