
Roku Ultra
Score: 83/100
Mecool KM2 Plus 2GB
Score: 71/100Rankings

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 Mecool KM2 Plus is a compact Android TV box delivering 4K HDR with Dolby Vision and Dolby Atmos, plus Google Assistant integration. Its modest 2 GB RAM, 100 Mbps Ethernet, and small internal storage limit performance for demanding users. It fits budget-conscious households needing basic 4K streaming and flexible storage options.
| Attribute | ![]() | ![]() |
|---|---|---|
8,294,400 pixelsbest | 8,294,400 pixelsbest | |
60 Hzbest | 60 Hzbest | |
2 GBbest | 2 GBbest | |
— | 16 GBbest | |
| ↓ lower better | 0.167 kg | 0.009 kgbest |
| ↓ lower better | — | 216.2 mmbest |
| ↓ lower better | 4.5 Wbest | — |
1 count | 2 countbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Audio(1) | ||
Supported Audio Formats | AAC, MP3, WMA, FLAC, AC3, DTS, ALAC | Dolby Atmos, Dolby Audio |
Connectivity(2) | ||
Wi‑Fi Standard | Wi‑Fi 6 | Wi‑Fi 5 |
Bluetooth Version | true | 4.2 |
Performance(2) | ||
CPU | Quad-core ARM Cortex A55 | Amlogic S905X4-B Quad-Core ARM Cortex-A55 |
GPU | OpenGL ES 2.0 | ARM Mali-G31 MP2 |
Build & Design(2) | ||
Weight (kg) | 0.167 kg | 0.009 kg |
Dimensions (H×W×D) (mm) | 124.46x25.4x127 mm | 216.2 mm |
Ports(2) | ||
USB Ports (count) | 1 count | 2 count |
HDMI Version | 2.0a | HDMI 2.1 |


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 KM2 Plus for its Netflix 4K certification, robust HDR and Dolby Atmos support, and the added convenience of a voice remote and Chromecast integration. They note the expanded USB and microSD ports as a clear advantage over rivals like Chromecast. However, they criticize the unchanged 2 GB RAM, modest CPU upgrade, and the 100 Mbps Ethernet limitation, positioning the device as a solid basic streaming solution rather than a premium offering.
Everyday users appreciate the straightforward setup, smooth 4K@60fps playback, and the ability to expand storage with external drives or an SD card. Common complaints revolve around the limited 2 GB RAM causing occasional lag, the small 16 GB internal storage filling quickly, and the lack of gigabit Ethernet.
“maximum performance, wired”

“very light”

“Played 4K@60fps with no problems”

