Roku Express 4K (3940) vs Roku Streaming Stick 4K

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Express 4K (3940) compared with Streaming Stick 4K

	RokuExpress 4K (3940)	RokuStreaming Stick 4K
Overview
Released
Released	May 2021	October 2021
Video and audio
Resolution
Resolution	4K	4K
HDR
HDR	HDR10, HDR10+ and HLG	Dolby Vision, HDR10+, HDR10 and HLG (better)
Video
Video	Up to 4K at 60 fps (Roku's exact Marlin/3940X developer row); HDCP 2.2 required for 4K/HDR	Up to 2160p at 60 fps (3840 × 2160) with up-scaling from 720p and 1080p; needs HDCP 2.2 for 4K
HDR
HDR	HDR10, HDR10+ and HLG (Roku's exact Marlin/3940X developer row); no Dolby Vision	Dolby Vision, HDR10, HDR10+ and HLG up to 60 fps
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)
Performance
Software
Software	Roku OS	Roku OS
Chip details
Chip details	Arm Cortex-A55; OpenGL ES 2.0 (Roku's exact Marlin/3940X developer row)	Quad-core Arm Cortex-A55; Roku quotes up to 30% faster boot than before
Memory
Memory	1 GB (Roku's exact Marlin/3940X developer row)	1 GB
Storage
Storage	Internal storage serves system/channel use; maker sources used do not publish user-accessible capacity	–
Software and services
Software and services	Launched with Roku OS 10. App availability varies by region and software version. May 2021 on-sale month is from the exact UK Tech Advisor review; the maker developer table gives only 2021. Cord Busters identifies this model as the UK replacement for Premiere 3920	–
Connections
Wi-Fi
Wi-Fi	Wi-Fi 5	Wi-Fi 5
Ethernet
Ethernet	No	No
Voice remote
Voice remote	No	Yes
Ports
Ports	HDMI output, micro-USB power/compatible Ethernet adaptor connection and reset. No built-in Ethernet socket; USB Ethernet adaptor sold separately	HDMI 2.0b; USB for power and the long-range Wi-Fi receiver
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	Dual-band 802.11ac Wi-Fi (Tech Advisor)	802.11ac dual-band MIMO Wi-Fi (2.4 GHz and 5 GHz) with long-range receiver
Smart home
Smart home	–	Works with Apple AirPlay and HomeKit, Google Home and Alexa
Remote
Remote	Original standard infrared remote with channel shortcuts; no microphone, television power/volume controls or headphone socket. Express 4K+ 3941 includes the voice remote instead	Voice remote with TV power, volume and mute buttons; two pre-installed AAA batteries
Design
Type
Type	Box	Stick
Power
Power	USB power cable and mains adaptor supplied; use the adaptor if the television USB port provides insufficient 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
In the box
In the box	Player, infrared remote, batteries, premium high-speed HDMI cable, USB power cable, power adaptor and removable adhesive strip	Roku Streaming Stick 4K, voice remote, two AAA batteries, USB power cable with long-range Wi-Fi receiver, power adaptor