Roku · Roku
Ultra (4800)
A 4K Dolby Vision streaming box with Ethernet, USB media playback and a voice remote with private listening.
- Type
- Box
- Resolution
- 4K
- HDR
- HDR10, Dolby Vision, HLG
- Software
- Roku OS
What reviewers say
Both reviews praised responsive streaming, Dolby Vision and the remote's private listening features. Tom's Guide questioned its price against cheaper 4K sticks and found some speed gains modest. TechRadar liked the streaming quality but criticised the ageing interface, limited voice assistant and occasional audio glitches on its tested software.
From tomsguide.com and techradar.com
Specifications
Report a wrong or missing specVideo and audio
- Resolution
- 4K
- HDR
- HDR10, Dolby Vision and HLG
- Dolby Atmos
- Yes
- Video
- Up to 4K at 60 fps; Roku's model-4800 guide specifies an HDCP 2.2 HDMI connection for 4K
- HDR
- Roku's current Benjamin/4800X developer row lists HDR10, Dolby Vision and HLG. An older model-4800 support document also claims HDR10+, which the developer row omits; HDR10+ is left out of the main field pending reconciliation
- Audio
- Dolby Atmos with compatible content and sound system; TechRadar lists AAC, MP3, WMA, FLAC, PCM, AC3/EAC3, DTS and ALAC support
Performance
- Software
- Roku OS
- Chip details
- Quad-core processor (Roku launch announcement); Roku's Benjamin/4800X developer row identifies Arm Cortex-A55
- Memory
- 2 GB (Roku's Benjamin/4800X developer row)
- Software and services
- Roku OS; OS 9.4 was announced alongside the player. AirPlay 2 and HomeKit were added after launch, as confirmed in Tom's Guide's review; apps and features vary by country and software version
Connections
- Wi-Fi
- Wi-Fi 5
- Ethernet
- Yes
- Voice remote
- Yes
- Ports
- HDMI, USB, Ethernet and power input (model-4800 Quick Start Guide); no microSD slot (both reviews)
- Wi-Fi and Bluetooth
- Dual-band 802.11ac (TechRadar); Bluetooth support and up to 50% greater wireless range than the prior model (Roku's launch claim)
- Smart home
- Controllable through compatible Amazon Alexa and Google Assistant devices; AirPlay 2 and HomeKit support with updated software
- Remote
- Original voice remote has TV power, volume and mute, headphone jack, two personal shortcuts and lost-remote finder; two AA batteries. Later rechargeable-remote bundles are not separate player hardware here
Design
- Type
- Box
- Power
- Supplied mains power adaptor
- Size
- 4.9 × 4.9 × 0.9 in (Tom's Guide)
- In the box
- Ultra player, voice remote, headphones, two AA batteries, Premium High Speed HDMI cable and power adaptor
Pros and cons
Pros
- Dolby Vision and Dolby Atmos support
- Built-in Ethernet and USB media playback
- Remote headphone jack, personal shortcuts and lost-remote finder
Cons
- No microSD expansion slot
- Wi-Fi 5 rather than Wi-Fi 6
- Original bundled remote uses replaceable batteries
Closest rivals
Model | Type | Resolution | HDR | Software | Released |
|---|---|---|---|---|---|
| Box | 4K | Dolby Vision, HDR10+, HDR10, HLG | Fire OS | Oct 2019 | |
| Box | 4K | Dolby Vision, HDR10, HLG | tvOS | May 2021 | |
| Box | 4K | Dolby Vision, HDR10 | Android TV | Oct 2019 |
