Roku Premiere (3920) vs Roku Streaming Stick+ (3810)

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Premiere (3920) compared with Streaming Stick+ (3810)

	RokuPremiere (3920)	RokuStreaming Stick+ (3810)
Overview
Released
Released	October 2018	October 2017
Video and audio
Resolution
Resolution	4K	4K
HDR
HDR	HDR10	HDR10
Video
Video	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	Up to 4K HDR at 60 fps; AVForums identifies HDMI 2.0a with HDCP 2.2 and tested automatic display refresh-rate matching on the original software
HDR
HDR	HDR10 in Roku's exact developer row; the 2019 UK reviews report no Dolby Vision, HDR10+ or HLG	HDR10; Dolby Vision is not supported
Audio
Audio	–	AVForums found Dolby Digital Plus Atmos output available, but no UK streaming apps using it at the time; its Plex tests passed multichannel core Dolby Digital and DTS, not Dolby TrueHD or DTS-HD MA. TechRadar's broad claim of no Atmos conflicts with that test, so the main Atmos field is omitted
Performance
Software
Software	Roku OS	Roku OS
Chip details
Chip details	Quad-core processor (Roku announcement); Arm Cortex-A53 and OpenGL ES 2.0 (exact maker developer row)	–
Memory
Memory	1 GB (Roku's exact Gilbert 4K/3920X developer row)	–
Software and services
Software and services	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	Launched with Roku OS 8; app availability and software features vary by country and over time
Connections
Wi-Fi
Wi-Fi	Wi-Fi 4	Wi-Fi 5
Ethernet
Ethernet	No	No
Voice remote
Voice remote	No	Yes
Ports
Ports	HDMI output, micro-USB power and reset; no Ethernet, USB media or memory-card slot	HDMI output and Mini USB power connection; no built-in Ethernet socket or USB media playback port
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	Single-band 802.11b/g/n; no 5 GHz support (Tech Advisor)	Dual-band 802.11ac MIMO receiver in the supplied power cable (AVForums); Roku claimed up to four times the wireless range of its 2016 Streaming Stick
Remote
Remote	Standard infrared remote with channel shortcuts; no microphone, television power/volume controls or headphone socket. Premiere+ 3921 was the voice-remote bundle	US launch bundle includes a voice remote with TV power and volume controls. AVForums' original UK review unit had TV power and volume but no direct remote voice search; later remote bundles differ
Design
Type
Type	Box	Stick
Power
Power	USB power cable and mains adaptor; maker recommends the adaptor if the television's USB port supplies insufficient power	Proprietary power cable incorporates the wireless receiver; supplied power adaptor, with suitable TV USB power also tested by both reviews
Size
Size	–	3.7 × 0.8 × 0.47 in; 0.9 oz (TechRadar)
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)	Streaming stick, power cable with wireless receiver, power adaptor and remote; AVForums' UK review bundle also included USB extension cable and two AAA batteries