Roku Express 4K (3940) vs Roku XD (2050)

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Express 4K (3940) compared with XD (2050)
RokuExpress 4K (3940)RokuXD (2050)
Overview
ReleasedMay 2021September 2010
Video and audio
Resolution4K (better)1080p
HDRHDR10, HDR10+ and HLG (better)None
VideoUp to 4K at 60 fps (Roku's exact Marlin/3940X developer row); HDCP 2.2 required for 4K/HDR1080p through HDMI; standard-definition composite output. AnandTech reports 1080p24 and 1080p30, without 1080p60
Audio–Analogue stereo through RCA; HDMI supports 5.1 surround sound where available according to the original maker guide
HDRHDR10, HDR10+ and HLG (Roku's exact Marlin/3940X developer row); no Dolby Vision–
Performance
SoftwareRoku OSRoku OS
Chip detailsArm Cortex-A55; OpenGL ES 2.0 (Roku's exact Marlin/3940X developer row)MIPS at 400 MHz in Roku's Pico/2050X developer row; NXP PNX8935 identified in AnandTech's exact XD teardown
Memory1 GB (Roku's exact Marlin/3940X developer row)256 MB in Roku's exact 2050X/2050N developer row
StorageInternal storage serves system/channel use; maker sources used do not publish user-accessible capacity–
Software and servicesLaunched 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 3920Roku lists OS 3.1 as the last compatible version for 2050X and 2050N. Service support depends on region and software; this is the original XD rather than the later Roku 2 XD
Connections
Wi-FiWi-Fi 5Wi-Fi 4
EthernetNoYes
Voice remoteNoNo
PortsHDMI output, micro-USB power/compatible Ethernet adaptor connection and reset. No built-in Ethernet socket; USB Ethernet adaptor sold separatelyHDMI, Ethernet, composite video, left/right RCA analogue audio and power; no component video, optical audio or USB media port
Wi-Fi and BluetoothDual-band 802.11ac Wi-Fi (Tech Advisor)Extended-range wireless-N; 2.4 GHz 802.11b/g/n verified in the exact-model reviews, without the XDS model's dual-band radio
RemoteOriginal standard infrared remote with channel shortcuts; no microphone, television power/volume controls or headphone socket. Express 4K+ 3941 includes the voice remote insteadOriginal infrared remote with Back, Options and Instant Replay, which replays the last seven seconds; no microphone or headphone socket
Design
TypeBoxBox
PowerUSB power cable and mains adaptor supplied; use the adaptor if the television USB port provides insufficient power–
In the boxPlayer, infrared remote, batteries, premium high-speed HDMI cable, USB power cable, power adaptor and removable adhesive stripPlayer, infrared remote, two AAA batteries, power adaptor, RCA video/stereo cable, Getting Started Guide and Important Product Information; HDMI and Ethernet cables sold separately

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