Apple TV 4K (2nd generation) vs Roku Express 4K (3940)

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TV 4K (2nd generation) compared with Express 4K (3940)

	AppleTV 4K (2nd generation)	RokuExpress 4K (3940)
Overview
Released
Released	May 2021	May 2021
Video and audio
Resolution
Resolution	4K	4K
HDR
HDR	Dolby Vision, HDR10 and HLG	HDR10, HDR10+ and HLG
Dolby Atmos
Dolby Atmos	Yes	–
Video
Video	H.264/HEVC SDR video up to 2160p, 60 fps, Main/Main 10 profile	Up to 4K at 60 fps (Roku's exact Marlin/3940X developer row); HDCP 2.2 required for 4K/HDR
HDR
HDR	HEVC Dolby Vision (Profile 5), HDR10 (Main 10 profile) and HLG up to 2160p, 60 fps	HDR10, HDR10+ and HLG (Roku's exact Marlin/3940X developer row); no Dolby Vision
Audio
Audio	Dolby Atmos; AC-3 (Dolby Digital 5.1) and E-AC-3 (Dolby Digital Plus 7.1); Apple Lossless, FLAC, AIFF, WAV, AAC, HE-AAC and MP3; ARC or eARC over HDMI	–
Performance
Software
Software	tvOS	Roku OS
Storage
Storage	32 GB	–
Chip details
Chip details	A12 Bionic with 64-bit architecture	Arm Cortex-A55; OpenGL ES 2.0 (Roku's exact Marlin/3940X developer row)
Memory
Memory	3 GB LPDDR4 (iFixit teardown)	1 GB (Roku's exact Marlin/3940X developer row)
Storage
Storage	32GB or 64GB	Internal storage serves system/channel use; maker sources used do not publish user-accessible capacity
Software and services
Software and services	–	Launched with Roku OS 10. App availability varies by region and software version. May 2021 on-sale month is from the exact UK Tech Advisor review; the maker developer table gives only 2021. Cord Busters identifies this model as the UK replacement for Premiere 3920
Connections
Wi-Fi
Wi-Fi	Wi-Fi 6	Wi-Fi 5
Ethernet
Ethernet	Yes	No
Smart home hub
Smart home hub	Yes	–
Voice remote
Voice remote	Yes	No
Ports
Ports	HDMI 2.1 (up to 4K 60 fps HDR output, ARC or eARC); Gigabit Ethernet; IR receiver	HDMI output, micro-USB power/compatible Ethernet adaptor connection and reset. No built-in Ethernet socket; USB Ethernet adaptor sold separately
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	802.11ax Wi-Fi 6 with MIMO, simultaneous dual band (2.4GHz and 5GHz); Bluetooth 5.0	Dual-band 802.11ac Wi-Fi (Tech Advisor)
Smart home
Smart home	Home hub; Thread, for HomeKit or Matter Thread accessories	–
Remote
Remote	Siri Remote (2nd generation) with clickpad, microphone for Siri, Bluetooth 5.0 and IR transmitter; controls the TV or receiver by IR or CEC; rechargeable over Lightning; 136 × 35 × 9.25 mm, 63 g	Original standard infrared remote with channel shortcuts; no microphone, television power/volume controls or headphone socket. Express 4K+ 3941 includes the voice remote instead
Design
Type
Type	Box	Box
Power
Power	Built-in power supply	USB power cable and mains adaptor supplied; use the adaptor if the television USB port provides insufficient power
Size
Size	35 × 98 × 98 mm (H × W × D); 425 g	–
In the box
In the box	Apple TV 4K, Siri Remote, power cord, Lightning to USB cable, documentation	Player, infrared remote, batteries, premium high-speed HDMI cable, USB power cable, power adaptor and removable adhesive strip