Roku 4 (4400) vs Roku Ultra (4800)

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4 (4400) compared with Ultra (4800)

	Roku4 (4400)	RokuUltra (4800)
Overview
Released
Released	October 2015	October 2020
Video and audio
Resolution
Resolution	4K	4K
HDR
HDR	None	HDR10, Dolby Vision and HLG (better)
Dolby Atmos
Dolby Atmos	–	Yes
Video
Video	Up to 4K Ultra HD at 60 fps; HDCP 2.2 required for 4K (Roku launch announcement)	Up to 4K at 60 fps; Roku's model-4800 guide specifies an HDCP 2.2 HDMI connection for 4K
HDR
HDR	No HDR support (TechRadar)	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
Audio	–	Dolby Atmos with compatible content and sound system; TechRadar lists AAC, MP3, WMA, FLAC, PCM, AC3/EAC3, DTS and ALAC support
Performance
Software
Software	Roku OS	Roku OS
Chip details
Chip details	Quad-core Arm processor; maker does not identify the processor model or clock rate	Quad-core processor (Roku launch announcement); Roku's Benjamin/4800X developer row identifies Arm Cortex-A55
Memory
Memory	1.5 GB (Roku's exact Dallas/4400X developer row)	2 GB (Roku's Benjamin/4800X developer row)
Storage
Storage	microSD expands channel/app storage; USB supports local media playback. User-accessible internal capacity is not published in the maker sources used	–
Software and services
Software and services	Launched with Roku OS 7. Roku lists OS 11.5 as the last supported release for model 4400X; channel availability varies by region and software version	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	Wi-Fi 5	Wi-Fi 5
Ethernet
Ethernet	Yes	Yes
Voice remote
Voice remote	Yes	Yes
Ports
Ports	HDMI, optical digital audio, Ethernet, USB media playback, microSD channel-storage slot and power	HDMI, USB, Ethernet and power input (model-4800 Quick Start Guide); no microSD slot (both reviews)
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	Dual-band 802.11ac MIMO Wi-Fi (Roku launch announcement)	Dual-band 802.11ac (TechRadar); Bluetooth support and up to 50% greater wireless range than the prior model (Roku's launch claim)
Smart home
Smart home	–	Controllable through compatible Amazon Alexa and Google Assistant devices; AirPlay 2 and HomeKit support with updated software
Remote
Remote	Original enhanced wireless remote with voice search, headphone socket, motion/game controls and a speaker for the player's remote-finder button. Uses Wi-Fi rather than Bluetooth (Ars Technica)	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
Type	Box	Box
Power
Power	–	Supplied mains power adaptor
Size
Size	16.5 × 16.5 × 2 cm, width × depth × height (TechRadar)	4.9 × 4.9 × 0.9 in (Tom's Guide)
In the box
In the box	Player, enhanced remote and headphones (Roku launch announcement)	Ultra player, voice remote, headphones, two AA batteries, Premium High Speed HDMI cable and power adaptor