Apple TV 4K (1st generation) vs Roku Ultra (4660)

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TV 4K (1st generation) compared with Ultra (4660)

	AppleTV 4K (1st generation)	RokuUltra (4660)
Overview
Released
Released	September 2017	October 2017
Video and audio
Resolution
Resolution	4K	4K
HDR
HDR	HDR10 and Dolby Vision (better)	HDR10
Dolby Atmos
Dolby Atmos	Yes	–
Video
Video	H.264/HEVC SDR up to 2160p at 60 fps, Main/Main 10 profile; HEVC Dolby Vision Profile 5 and HDR10 Main 10 up to 2160p; HD and UHD TVs supported through HDMI	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 and HDR10; requires a compatible HDR television and content	HDR10 (Roku's exact Bryan/4660X developer row); no Dolby Vision in the original 4660 comparison chart
Audio
Audio	Dolby Digital 5.1, Dolby Digital Plus 7.1 and Dolby Atmos; Atmos support added with tvOS 12 after launch; AAC, HE-AAC v1, MP3, Apple Lossless, FLAC, AIFF and WAV playback	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	tvOS	Roku OS
Chip details
Chip details	Apple A10X Fusion with 64-bit architecture	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 Clock speed unpublished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	–	1 GB (Roku's exact Bryan/4660X developer row)
Storage
Storage	32 or 64 GB internal 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 5 (802.11ac)	Wi-Fi 5
Ethernet
Ethernet	Yes	Yes
Smart home hub
Smart home hub	Yes	–
Voice remote
Voice remote	Yes	Yes
Ports
Ports	HDMI 2.0a, Gigabit Ethernet and power inlet; HDMI cable sold separately; protected content requires HDCP	HDMI, Ethernet, microSD, USB media port and power input; no optical audio output
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	802.11ac Wi-Fi with MIMO and simultaneous 2.4/5 GHz operation; Bluetooth 5.0; IR receiver; AirPlay from compatible Apple devices	802.11ac dual-band MIMO (Roku's original 4660 comparison chart)
Smart home
Smart home	HomeKit home hub for remote access and automated accessory control	–
Remote
Remote	Siri Remote with touch surface, voice control, Bluetooth 4.0, IR transmitter, accelerometer and three-axis gyro; Lightning charging; 124 × 38 × 6.3 mm, 45 g; rechargeable battery rated for months of typical daily use	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	Box	Box
Power
Power	Built-in mains power supply; remote charges by USB computer connection or a separate power adapter	–
Size
Size	35 × 98 × 98 mm; 425 g	Approximately 5-inch-square box (Tom's Guide)
In the box
In the box	TV 4K, Siri Remote, power cord, Lightning-to-USB cable and documentation	–