Amazon Fire TV (3rd Gen) vs Roku Premiere (3920)

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

Better figure, where one is clearly better

Fire TV (3rd Gen) compared with Premiere (3920)
AmazonFire TV (3rd Gen)RokuPremiere (3920)
Overview
ReleasedOctober 2017October 2018
Video and audio
Resolution4K4K
HDRHDR10HDR10
Dolby AtmosYes–
VideoHEVC up to 3840 × 2160 at 60 fps, 35 Mbps, Main 10 Profile Level 5.1; H.264 up to 4K 30 fps or 1080p 60 fps; VP9 up to 4K 60 fps; HDCP 2.2720p, 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
AudioDolby Atmos via Dolby Digital Plus for supported titles and compatible equipment; Dolby Digital, Dolby Digital Plus, AAC, FLAC, MP3, Vorbis, PCM and Opus input formats–
Performance
SoftwareFire OSRoku OS
Storage8 GB–
Chip detailsAmlogic S905Z; quad-core Cortex-A53 CPU up to 1.5 GHz; Mali-450 MP3 GPU; 32-bit applicationsQuad-core processor (Roku announcement); Arm Cortex-A53 and OpenGL ES 2.0 (exact maker developer row)
Memory2 GB RAM1 GB (Roku's exact Gilbert 4K/3920X developer row)
StorageInternal capacity includes operating software–
Software and servicesFire OS 6 based on Android 7.1 (API level 25); build model AFTN; Amazon confirms US shipping from 25 October 2017Roku 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 5Wi-Fi 4
EthernetNoNo
Voice remoteYesNo
PortsPendant housing with attached HDMI lead and Micro-USB power input; separate Ethernet adapter optional, no built-in socket or microSD slotHDMI output, micro-USB power and reset; no Ethernet, USB media or memory-card slot
Wi-Fi and BluetoothDual-band 802.11a/b/g/n/ac with 2 × 2 MIMO; Bluetooth 4.2 with BLE; Miracast not supported according to Amazon’s developer specificationsSingle-band 802.11b/g/n; no 5 GHz support (Tech Advisor)
RemoteFirst-generation Alexa Voice Remote with microphone; no television volume controls. Hands-free control requires a linked compatible Echo; availability differed by region at launch.Standard infrared remote with channel shortcuts; no microphone, television power/volume controls or headphone socket. Premiere+ 3921 was the voice-remote bundle
Design
TypeBoxBox
PowerExternal mains supply; cannot be powered from the television’s USB port according to Stuff’s exact-model inspectionUSB power cable and mains adaptor; maker recommends the adaptor if the television's USB port supplies insufficient power
In the box–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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