
Roku Ultra
Score: 83/100
Onn 4K Plus
Score: 72/100Rankings

The Roku Ultra is Roku's flagship 4K streaming player offering Dolby Vision, HDR10+, Dolby Atmos and both Wi-Fi 6 and Ethernet for rock-solid connectivity. Its premium price and bulkier form factor may deter budget-focused users. It excels for home-theater enthusiasts who want top-tier audio-video performance and reliable wired streaming.

The onn 4K Plus Streaming Device offers Dolby Vision, HDR10+ and Dolby Atmos support with Wi-Fi 6 for smooth 4K streaming. Its lack of Ethernet and limited ports constrain connectivity options. Best suited for budget-conscious households that rely on fast Wi-Fi and the Google TV ecosystem.
| Attribute | ![]() | ![]() |
|---|---|---|
8,294,400 pixelsbest | 2,160 pixels | |
60 Hzbest | — | |
2 GBbest | 2 GBbest | |
— | 16 GBbest | |
| ↓ lower better | 0.167 kgbest | — |
| ↓ lower better | 4.5 Wbest | — |
1 countbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Display(1) | ||
Maximum Resolution (pixels) | 3840x2160 pixels | 2160 pixels |
Audio(1) | ||
Supported Audio Formats | AAC, MP3, WMA, FLAC, AC3, DTS, ALAC | Dolby Atmos |
Connectivity(3) | ||
Wi‑Fi Standard | Wi‑Fi 6 | 802.11ax |
Ethernet Port | true | false |
Bluetooth Version | true | 5.0 |
Performance(1) | ||
CPU | Quad-core ARM Cortex A55 | Quad-core 2.1 GHz |
Features(1) | ||
Voice Assistant | false | true |


Products in the top-left offer the best value (high score, low price).

Professional reviewers and editors consistently commend the Roku Ultra for its 30% faster processor, Wi-Fi 6 connectivity, and premium audiovisual support such as Dolby Vision and Dolby Atmos. They also highlight the feature-rich rechargeable Voice Remote Pro and the reliability of its wired Ethernet and local media playback options, positioning it as the most capable Roku device for high-end home-theater setups.
Everyday users praise the device's lightweight design, fast and responsive interface, and the convenience of the hands-free remote with a lost-finder. Stable streaming via Wi-Fi 6 or Ethernet and the ability to play local media are also frequently mentioned, while the higher price and lack of deep smart-home integration are noted as minor drawbacks.

Professional reviewers commend the onn 4K Plus for its surprisingly snappy navigation, excellent 4K HDR picture quality, and premium feel given its 2 GB RAM and 16 GB storage, while also noting the absence of an Ethernet port and limited connectivity options.
Everyday users praise the device for its quick setup, vibrant 4K visuals, reliable Google Assistant voice control, and overall value, but commonly mention occasional buffering on weak networks, limited storage without sideloading, and the lack of Ethernet or USB ports as drawbacks.
“maximum performance, wired”

“very light”

“Fast setup, vibrant 4K colors/detail on YouTube/Netflix, reliable Google Assistant voice search, and value for smooth streaming without lag”


