Amazon Fire TV Cube (2nd Gen) vs Roku Premiere (3920)

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Fire TV Cube (2nd Gen) compared with Premiere (3920)

	AmazonFire TV Cube (2nd Gen)	RokuPremiere (3920)
Overview
Released
Released	October 2019	October 2018
Video and audio
Resolution
Resolution	4K	4K
HDR
HDR	Dolby Vision, HDR10+, HDR10 and HLG (better)	HDR10
Dolby Atmos
Dolby Atmos	Yes	–
Video
Video	HEVC hardware decoding up to 2160p at 60 fps; H.264 up to 4K 30 fps or 1080p 60 fps; VP9 up to 2160p 60 fps with limitations	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	Dolby Vision, HDR10, HDR10+ and HLG	HDR10 in Roku's exact developer row; the 2019 UK reviews report no Dolby Vision, HDR10+ or HLG
Audio
Audio	Dolby Atmos over Dolby Digital Plus for compatible equipment and supported titles; Dolby Digital and Dolby Digital Plus; built-in speaker for Alexa responses	–
Performance
Software
Software	Fire OS	Roku OS
Storage
Storage	16 GB	–
Chip details
Chip details	Amlogic S922X; hexa-core CPU with four cores up to 2.2 GHz and two up to 1.9 GHz; Arm Mali G52-MP2 (3EE) GPU at 800 MHz; 32-bit application support	Quad-core processor (Roku announcement); Arm Cortex-A53 and OpenGL ES 2.0 (exact maker developer row)
Memory
Memory	2 GB DDR4-2400 RAM, as listed by Amazon’s developer specifications	1 GB (Roku's exact Gilbert 4K/3920X developer row)
Storage
Storage	16 GB internal storage; operating software occupies part of it	–
Software and services
Software and services	Fire OS 7 based on Android 9 (API level 28); developer build model AFTR	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 5	Wi-Fi 4
Ethernet
Ethernet	No	No
Voice remote
Voice remote	Yes	No
Ports
Ports	HDMI output, Micro-USB, IR extender and power connections; no built-in Ethernet socket. The included Amazon Ethernet Adapter supplies 10/100 Ethernet through USB.	HDMI output, micro-USB power and reset; no Ethernet, USB media or memory-card slot
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	Dual-band 802.11a/b/g/n/ac with 2 × 2 MIMO; Bluetooth 5.0	Single-band 802.11b/g/n; no 5 GHz support (Tech Advisor)
Smart home
Smart home	Eight far-field microphones and beamforming; Local Voice Control processes common navigation commands on the device. Alexa controls compatible equipment through infrared, HDMI CEC and supported cloud protocols.	–
Remote
Remote	Alexa Voice Remote (2nd Gen); 38 × 142 × 16 mm, 43.4 g without batteries; two AAA batteries included	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	External power adapter	USB power cable and mains adaptor; maker recommends the adaptor if the television's USB port supplies insufficient power
Size
Size	86.1 × 86.1 × 76.9 mm; 465 g	–
In the box
In the box	Fire TV Cube, Alexa Voice Remote (2nd Gen), power adapter, two AAA batteries, IR extender cable, Amazon Ethernet Adapter and guides; HDMI cable sold separately	Player, infrared remote, two AAA batteries, HDMI cable, USB power cable, power adaptor and removable adhesive strip (UK quick-start guide)