Roku LT (2400) vs Roku Ultra (4800)

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LT (2400) compared with Ultra (4800)

	RokuLT (2400)	RokuUltra (4800)
Overview
Released
Released	November 2011	October 2020
Video and audio
Resolution
Resolution	720p	4K (better)
HDR
HDR	None	HDR10, Dolby Vision and HLG (better)
Dolby Atmos
Dolby Atmos	–	Yes
Video
Video	Up to 720p through HDMI; composite video through the included A/V cable is standard definition	Up to 4K at 60 fps; Roku's model-4800 guide specifies an HDCP 2.2 HDMI connection for 4K
HDR
HDR	–	Roku's current Benjamin/4800X developer row lists HDR10, Dolby Vision and HLG. An older model-4800 support document also claims HDR10+, which the developer row omits; HDR10+ is left out of the main field pending reconciliation
Audio
Audio	–	Dolby Atmos with compatible content and sound system; TechRadar lists AAC, MP3, WMA, FLAC, PCM, AC3/EAC3, DTS and ALAC support
Performance
Software
Software	Roku OS	Roku OS
Chip details
Chip details	ARM11 at 600 MHz; Giga hardware, model 2400X in Roku's developer table	Quad-core processor (Roku launch announcement); Roku's Benjamin/4800X developer row identifies Arm Cortex-A55
Memory
Memory	256 MB in Roku's exact 2400X developer row	2 GB (Roku's Benjamin/4800X developer row)
Software and services
Software and services	Roku lists OS 9.1 as the last compatible version for 2400X. This is the original ARM-based LT, distinct from the MIPS-based 2450 and 2700 revisions. Channels and services depend on region and software	Roku OS; OS 9.4 was announced alongside the player. AirPlay 2 and HomeKit were added after launch, as confirmed in Tom's Guide's review; apps and features vary by country and software version
Connections
Wi-Fi
Wi-Fi	Wi-Fi 4	Wi-Fi 5
Ethernet
Ethernet	No	Yes
Voice remote
Voice remote	No	Yes
Ports
Ports	HDMI, composite video/stereo A/V connector, power and reset; no Ethernet, USB or microSD	HDMI, USB, Ethernet and power input (model-4800 Quick Start Guide); no microSD slot (both reviews)
Wi-Fi and Bluetooth
Wi-Fi and Bluetooth	Built-in 802.11b/g/n Wi-Fi according to the original maker announcement	Dual-band 802.11ac (TechRadar); Bluetooth support and up to 50% greater wireless range than the prior model (Roku's launch claim)
Smart home
Smart home	–	Controllable through compatible Amazon Alexa and Google Assistant devices; AirPlay 2 and HomeKit support with updated software
Remote
Remote	Standard infrared remote; no voice microphone, headphone socket or motion control	Original voice remote has TV power, volume and mute, headphone jack, two personal shortcuts and lost-remote finder; two AA batteries. Later rechargeable-remote bundles are not separate player hardware here
Design
Type
Type	Box	Box
Power
Power	–	Supplied mains power adaptor
Size
Size	–	4.9 × 4.9 × 0.9 in (Tom's Guide)
In the box
In the box	LT player, standard infrared remote, two AAA batteries, RCA A/V cable and power adaptor; HDMI cable sold separately	Ultra player, voice remote, headphones, two AA batteries, Premium High Speed HDMI cable and power adaptor