Roku 2 XD (3050) vs Roku Express 4K (3940)

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2 XD (3050) compared with Express 4K (3940)

	Roku2 XD (3050)	RokuExpress 4K (3940)
Overview
Released
Released	July 2011	May 2021
Video and audio
Resolution
Resolution	1080p	4K (better)
HDR
HDR	None	HDR10, HDR10+ and HLG (better)
Video
Video	1080p, 720p or 480p through HDMI; 480i composite video through the included custom A/V cable (The Gadgeteer)	Up to 4K at 60 fps (Roku's exact Marlin/3940X developer row); HDCP 2.2 required for 4K/HDR
HDR
HDR	–	HDR10, HDR10+ and HLG (Roku's exact Marlin/3940X developer row); no Dolby Vision
Audio
Audio	Analogue stereo through the A/V cable; HDMI digital audio with 5.1 passthrough where available. The maker's original Netflix implementation supported Dolby Digital Plus	–
Performance
Software
Software	Roku OS	Roku OS
Chip details
Chip details	ARM11 at 600 MHz in Roku's exact Giga/3050X developer row	Arm Cortex-A55; OpenGL ES 2.0 (Roku's exact Marlin/3940X developer row)
Memory
Memory	256 MB in Roku's exact 3050X developer row	1 GB (Roku's exact Marlin/3940X developer row)
Storage
Storage	microSD expands storage for Roku channels and games, rather than playing personal files from the card; no published aggregate user capacity	Internal storage serves system/channel use; maker sources used do not publish user-accessible capacity
Software and services
Software and services	Roku lists OS 9.1 as the last compatible version for 3050X. Channels and services depend on region and software; this is the 2011 Roku 2 XD rather than the original 2010 XD	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 4	Wi-Fi 5
Ethernet
Ethernet	No	No
Voice remote
Voice remote	No	No
Ports
Ports	HDMI, microSD channel-storage slot, 3.5 mm composite/stereo A/V, power and reset; no Ethernet or USB media port	HDMI output, micro-USB power/compatible Ethernet adaptor connection and reset. No built-in Ethernet socket; USB Ethernet adaptor sold separately
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	802.11n Wi-Fi, compatible with b/g; Bluetooth 3.0 for the optional gaming remote (The Gadgeteer)	Dual-band 802.11ac Wi-Fi (Tech Advisor)
Remote
Remote	Original standard infrared remote with Back, Home, Options and Instant Replay; no microphone, headphone socket or motion control. Bluetooth gaming remote sold separately	Original standard infrared remote with channel shortcuts; no microphone, television power/volume controls or headphone socket. Express 4K+ 3941 includes the voice remote instead
Design
Type
Type	Box	Box
Power
Power	Less than 2 W stated in the original maker announcement; 5.2 V / 1.0 A power adaptor identified in The Gadgeteer's XD test	USB power cable and mains adaptor supplied; use the adaptor if the television USB port provides insufficient power
Size
Size	3.3 × 3.3 × 0.9 inches (The Gadgeteer)	–
In the box
In the box	Player, infrared remote, two AAA batteries, custom RCA-to-3.5 mm composite/stereo cable, mains power adaptor and setup guide; HDMI cable and microSD card sold separately	Player, infrared remote, batteries, premium high-speed HDMI cable, USB power cable, power adaptor and removable adhesive strip