Roku Streaming Stick (2025) vs Roku Ultra (4660)

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Streaming Stick (2025) compared with Ultra (4660)

	RokuStreaming Stick (2025)	RokuUltra (4660)
Overview
Released
Released	June 2025	October 2017
Video and audio
Resolution
Resolution	1080p	4K (better)
HDR
HDR	None	HDR10 (better)
Video
Video	Up to 1080p (1920 × 1080) with up-scaling from 720p	HD, 4K and 4K HDR at up to 60 fps; protected 4K requires HDCP 2.2 (Roku launch release and original 4660 comparison chart)
HDR
HDR	–	HDR10 (Roku's exact Bryan/4660X developer row); no Dolby Vision in the original 4660 comparison chart
Audio
Audio	Digital stereo over HDMI; DTS Digital Surround and Dolby-encoded audio pass-through over HDMI (Roku doesn't list Dolby Atmos)	Dolby Audio and DTS passthrough over HDMI; night listening mode (Roku's original 4660 comparison chart). Optical output removed from the previous 4640 model
Performance
Software
Software	Roku OS	Roku OS
Chip details
Chip details	Arm Cortex-A55	Arm Cortex-A53; OpenGL ES 2.0 (Roku's exact Bryan/4660X developer row); quad-core confirmed by the original 4660 comparison chart. Clock speed unpublished
Memory
Memory	512 MB	1 GB (Roku's exact Bryan/4660X developer row)
Storage
Storage	–	microSD adds channel storage and can improve channel loading; not local media playback. Use the USB media port for supported local files
Software and services
Software and services	–	Roku OS; apps and features vary by region and software version
Connections
Wi-Fi
Wi-Fi	Dual-band Wi-Fi	Wi-Fi 5
Ethernet
Ethernet	No	Yes
Voice remote
Voice remote	Yes	Yes
Ports
Ports	Built-in HDMI; USB-C for power	HDMI, Ethernet, microSD, USB media port and power input; no optical audio output
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	Dual-band Wi-Fi (2.4 GHz and 5 GHz)	802.11ac dual-band MIMO (Roku's original 4660 comparison chart)
Smart home
Smart home	Works with Apple AirPlay and HomeKit, Google Home and Alexa	–
Remote
Remote	Voice remote with TV power, volume and mute buttons; two pre-installed AAA batteries	Original voice remote with television power and volume buttons, headphone socket, gaming buttons and lost-remote finder. Television controls require a compatible television; no later personal shortcut buttons
Design
Type
Type	Stick	Box
Power
Power	5 V, 1 A; about 2.2 W typical when streaming	–
Size
Size	3.7 × 0.80 × 0.45 in; 26.0 g	Approximately 5-inch-square box (Tom's Guide)
In the box
In the box	Roku Streaming Stick, voice remote, two AAA batteries, USB-C to USB-A power cable	–