Roku Express 4K (3940) vs Roku Streaming Stick (3500)

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

Better figure, where one is clearly better

Express 4K (3940) compared with Streaming Stick (3500)
RokuExpress 4K (3940)RokuStreaming Stick (3500)
Overview
ReleasedMay 2021April 2014
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/HDRUp to 1080p HD (Roku's original HDMI-version announcement)
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)ARM11 at 600 MHz (Roku's exact Sugarland/3500X developer row)
Memory1 GB (Roku's exact Marlin/3940X developer row)512 MB (Roku's exact Sugarland/3500X 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StorageInternal storage serves system/channel use; maker sources used do not publish user-accessible capacity–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 OS; maker now lists this as a legacy model limited to Roku OS 11. App availability varies by region and software version
Connections
Wi-FiWi-Fi 5Wi-Fi 4
EthernetNoNo
Voice remoteNoNo
PortsHDMI output, micro-USB power/compatible Ethernet adaptor connection and reset. No built-in Ethernet socket; USB Ethernet adaptor sold separatelyHDMI plug and Micro-USB power input; USB cable and mains adapter included; distinct from the earlier MHL-powered Roku Ready stick
Wi-Fi and BluetoothDual-band 802.11ac Wi-Fi (Tech Advisor)Dual-band 802.11b/g/n (Tech Advisor); 2.4 GHz and 5 GHz (Tom's Guide)
RemoteOriginal standard infrared remote with channel shortcuts; no microphone, television power/volume controls or headphone socket. Express 4K+ 3941 includes the voice remote insteadWi-Fi Direct remote with navigation, playback and app shortcuts; no microphone, headphone socket or motion sensors (Tech Advisor). Original app shortcut labels vary by region
Design
TypeBoxStick
Size–3.1 × 1.1 × 0.5 in (Tom's Guide)
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 strip–

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