Roku Streaming Stick 4K vs Roku Ultra (4640)

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Streaming Stick 4K compared with Ultra (4640)

	RokuStreaming Stick 4K	RokuUltra (4640)
Overview
Released
Released	October 2021	October 2016
Video and audio
Resolution
Resolution	4K	4K
HDR
HDR	Dolby Vision, HDR10+, HDR10 and HLG (better)	HDR10
Video
Video	Up to 2160p at 60 fps (3840 × 2160) with up-scaling from 720p and 1080p; needs HDCP 2.2 for 4K	Up to 4K at 60 fps; HDCP 2.2; upscales 720p and 1080p sources to 4K (Roku launch release reproduced by Display Daily)
HDR
HDR	Dolby Vision, HDR10, HDR10+ and HLG up to 60 fps	HDR10 (Roku's exact Cooper/4640X developer row); Dolby Vision is not supported
Audio
Audio	Digital stereo over HDMI; DTS Digital Surround and Dolby-encoded audio pass-through over HDMI (Roku's UK spec doesn't list Dolby Atmos)	Dolby Digital and Dolby Digital Plus decoding; optical digital audio output for compatible receivers and soundbars (Roku launch release)
Performance
Software
Software	Roku OS	Roku OS
Chip details
Chip details	Quad-core Arm Cortex-A55; Roku quotes up to 30% faster boot than before	Arm Cortex-A53 quad-core 1.2 GHz; OpenGL ES 2.0 (Roku's Cooper/4640X developer row)
Memory
Memory	1 GB	1 GB (Roku's exact Cooper/4640X developer row)
Storage
Storage	–	MicroSD slot provides additional channel storage; USB is for local media playback (Roku launch release). No verified built-in user storage capacity
Software and services
Software and services	–	Roku OS; apps and features vary by region and software version
Connections
Wi-Fi
Wi-Fi	Wi-Fi 5	Wi-Fi 5
Ethernet
Ethernet	No	Yes
Voice remote
Voice remote	Yes	Yes
Ports
Ports	HDMI 2.0b; USB for power and the long-range Wi-Fi receiver	HDMI, Ethernet, optical digital audio output, USB media playback port, microSD slot and power input
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	802.11ac dual-band MIMO Wi-Fi (2.4 GHz and 5 GHz) with long-range receiver	Dual-band 802.11ac MIMO (Roku launch release)
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 point-anywhere remote has voice search, headphone jack, headphone volume, gaming buttons and lost-remote finder; no TV volume or power control (The Next Web)
Design
Type
Type	Stick	Box
Power
Power	5 V, 1 A; under 3.5 W typical when streaming 4K; power adaptor included	–
Size
Size	3.7 × 0.80 × 0.45 in; 26.0 g	4.9 × 4.9 × 0.9 in; fanless design (Tom's Guide)
In the box
In the box	Roku Streaming Stick 4K, voice remote, two AAA batteries, USB power cable with long-range Wi-Fi receiver, power adaptor	–