Amazon Fire TV Stick 4K Max (2nd Gen) vs Roku Ultra (4660)

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Fire TV Stick 4K Max (2nd Gen) compared with Ultra (4660)

	AmazonFire TV Stick 4K Max (2nd Gen)	RokuUltra (4660)
Overview
Released
Released	October 2023	October 2017
Video and audio
Resolution
Resolution	4K	4K
HDR
HDR	Dolby Vision, HDR10+, HDR10 and HLG (better)	HDR10
Dolby Atmos
Dolby Atmos	Yes	–
Video
Video	2160p, 1080p and 720p up to 60 fps; AV1, HEVC, H.264 and VP9 hardware decoding up to 4K at 60 fps; Auto Low Latency Mode	HD, 4K and 4K HDR at up to 60 fps; protected 4K requires HDCP 2.2 (Roku launch release and original 4660 comparison chart)
HDR
HDR	Dolby Vision (profiles 4-MEL, 5, 8, 9 and 10), HDR10, HDR10+ and HLG	HDR10 (Roku's exact Bryan/4660X developer row); no Dolby Vision in the original 4660 comparison chart
Audio
Audio	Dolby Atmos, 7.1 surround and stereo; Dolby MAT transcoding; Dolby TrueHD, DTS, DTS-HD (basic profile) and MPEG-H pass-through	Dolby Audio and DTS passthrough over HDMI; night listening mode (Roku's original 4660 comparison chart). Optical output removed from the previous 4640 model
Performance
Software
Software	Fire OS	Roku OS
Storage
Storage	16 GB	–
Chip details
Chip details	MediaTek MT8696T; 4× Arm Cortex-A55 up to 2.0 GHz; GE9215 GPU up to 850 MHz	Arm Cortex-A53; OpenGL ES 2.0 (Roku's exact Bryan/4660X developer row); quad-core confirmed by the original 4660 comparison chart. Clock speed unpublished
Memory
Memory	2GB LPDDR4	1 GB (Roku's exact Bryan/4660X developer row)
Storage
Storage	–	microSD adds channel storage and can improve channel loading; not local media playback. Use the USB media port for supported local files
Software and services
Software and services	–	Roku OS; apps and features vary by region and software version
Connections
Wi-Fi
Wi-Fi	Wi-Fi 6E	Wi-Fi 5
Ethernet
Ethernet	No	Yes
Voice remote
Voice remote	Yes	Yes
Ports
Ports	HDMI 2.1 output with ARC input support; micro-USB for power; 10/100 Ethernet with Amazon's adapter (sold separately)	HDMI, Ethernet, microSD, USB media port and power input; no optical audio output
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	Wi-Fi 6E tri-band 802.11a/b/g/n/ac/ax (2.4, 5 and 6 GHz); Bluetooth 5.2 and BLE	802.11ac dual-band MIMO (Roku's original 4660 comparison chart)
Smart home
Smart home	Alexa control of compatible smart home devices; Live View Picture-in-Picture camera feeds	–
Remote
Remote	Alexa Voice Remote Enhanced with power, volume and channel buttons for TVs, soundbars and receivers (IR); Bluetooth; 2 × AAA; 38 × 157 × 17 mm, 51 g without batteries	Original voice remote with television power and volume buttons, headphone socket, gaming buttons and lost-remote finder. Television controls require a compatible television; no later personal shortcut buttons
Design
Type
Type	Stick	Box
Size
Size	99 × 30 × 14 mm (108 mm with the HDMI connector); 43.5 g	Approximately 5-inch-square box (Tom's Guide)
In the box
In the box	Fire TV Stick 4K Max, Alexa Voice Remote Enhanced, power cable and power adapter, HDMI extender cable, 2 AAA batteries, quick start guide	–