Roku 3 (4200) vs Roku Premiere (3920)

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

Better figure, where one is clearly better

3 (4200) compared with Premiere (3920)
Roku3 (4200)RokuPremiere (3920)
Overview
ReleasedMarch 2013October 2018
Video and audio
Resolution1080p4K (better)
HDRNoneHDR10 (better)
VideoUp to 1080p HD (original Roku announcement); HDMI only, with no analogue A/V output720p, 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–HDR10 in Roku's exact developer row; the 2019 UK reviews report no Dolby Vision, HDR10+ or HLG
Performance
SoftwareRoku OSRoku OS
Chip detailsArm Cortex-A9 dual-core at 1 GHz; OpenGL ES 2.0 (Roku's exact Austin/4200X developer row)Quad-core processor (Roku announcement); Arm Cortex-A53 and OpenGL ES 2.0 (exact maker developer row)
Memory512 MB (Roku's exact Austin/4200X developer row)1 GB (Roku's exact Gilbert 4K/3920X developer row)
StoragemicroSD expands channel/app storage; local media uses the USB port–
Software and servicesRoku OS; apps and services vary by region and software version. Maker developer row lists release year 2014, conflicting with the original March 6, 2013 release announcement used hereRoku 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-FiWi-Fi 4Wi-Fi 4
EthernetYesNo
Voice remoteNoNo
PortsHDMI, Ethernet, USB media playback, microSD channel-storage slot and powerHDMI output, micro-USB power and reset; no Ethernet, USB media or memory-card slot
Wi-Fi and BluetoothDual-band Wi-Fi (Roku launch release); 2.4/5 GHz confirmed by SmallNetBuilder. Original remote uses Wi-Fi Direct rather than BluetoothSingle-band 802.11b/g/n; no 5 GHz support (Tech Advisor)
RemoteOriginal enhanced motion remote with headphone socket and A/B game controls. Side volume buttons control headphones only; no microphone or television power controls. Distinct from the 2015 voice-remote bundleStandard infrared remote with channel shortcuts; no microphone, television power/volume controls or headphone socket. Premiere+ 3921 was the voice-remote bundle
Design
TypeBoxBox
Power–USB power cable and mains adaptor; maker recommends the adaptor if the television's USB port supplies insufficient power
In the boxPlayer, enhanced remote and in-ear headphones; HDMI cable not supplied (SmallNetBuilder)Player, infrared remote, two AAA batteries, HDMI cable, USB power cable, power adaptor and removable adhesive strip (UK quick-start guide)

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