Roku Express+ (3710) vs Roku Premiere (3920)

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Express+ (3710) compared with Premiere (3920)

	RokuExpress+ (3710)	RokuPremiere (3920)
Overview
Released
Released	October 2016	October 2018
Video and audio
Resolution
Resolution	1080p	4K (better)
HDR
HDR	None	HDR10 (better)
Video
Video	Up to 1920 × 1080 playback; interface renders at 1280 × 720 (Roku's exact Littlefield/3710X developer row). Composite output serves legacy televisions, not HD playback	720p, 1080p and 4K Ultra HD; up to 4K at 60 fps (Roku's exact Gilbert 4K/3920X developer row). HDCP 2.2 required for 4K/HDR
HDR
HDR	–	HDR10 in Roku's exact developer row; the 2019 UK reviews report no Dolby Vision, HDR10+ or HLG
Performance
Software
Software	Roku OS	Roku OS
Chip details
Chip details	MIPS processor at 900 MHz (Roku's exact Littlefield/3710X developer row)	Quad-core processor (Roku announcement); Arm Cortex-A53 and OpenGL ES 2.0 (exact maker developer row)
Memory
Memory	512 MB (Roku's exact Littlefield/3710X developer row)	1 GB (Roku's exact Gilbert 4K/3920X developer row)
Software and services
Software and services	Roku OS; US launch model was exclusive to Walmart. App availability varies by region and software version	Roku OS; app availability varies by region and software version. US retail availability began in early October 2018; the developer row lists 2019, while the original US maker announcement specifies October 2018
Connections
Wi-Fi
Wi-Fi	Wi-Fi 4	Wi-Fi 4
Ethernet
Ethernet	No	No
Voice remote
Voice remote	No	No
Ports
Ports	HDMI output, composite A/V jack, USB power input and reset button; HDMI and red/white/yellow composite cables supplied (Roku's 2016 quick-start guide)	HDMI output, micro-USB power and reset; no Ethernet, USB media or memory-card slot
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	802.11b/g/n (Roku launch release); 2.4 GHz only (CGMagazine)	Single-band 802.11b/g/n; no 5 GHz support (Tech Advisor)
Remote
Remote	Original infrared remote with navigation, playback and app shortcuts; must remain within line of sight. Mobile-app voice search is separate from the supplied remote	Standard infrared remote with channel shortcuts; no microphone, television power/volume controls or headphone socket. Premiere+ 3921 was the voice-remote bundle
Design
Type
Type	Box	Box
Power
Power	–	USB power cable and mains adaptor; maker recommends the adaptor if the television's USB port supplies insufficient power
In the box
In the box	–	Player, infrared remote, two AAA batteries, HDMI cable, USB power cable, power adaptor and removable adhesive strip (UK quick-start guide)
Size
Size	Supplied adhesive strip mounts the player to a television; maker guide warns against placing the player behind the TV or inside a cabinet	–