Roku Ultra (4800) vs Roku XD (2050)

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

Ultra (4800) compared with XD (2050)
RokuUltra (4800)RokuXD (2050)
Overview
ReleasedOctober 2020September 2010
Video and audio
Resolution4K (better)1080p
HDRHDR10, Dolby Vision and HLG (better)None
Dolby AtmosYes–
VideoUp to 4K at 60 fps; Roku's model-4800 guide specifies an HDCP 2.2 HDMI connection for 4K1080p through HDMI; standard-definition composite output. AnandTech reports 1080p24 and 1080p30, without 1080p60
HDRRoku'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–
AudioDolby Atmos with compatible content and sound system; TechRadar lists AAC, MP3, WMA, FLAC, PCM, AC3/EAC3, DTS and ALAC supportAnalogue stereo through RCA; HDMI supports 5.1 surround sound where available according to the original maker guide
Performance
SoftwareRoku OSRoku OS
Chip detailsQuad-core processor (Roku launch announcement); Roku's Benjamin/4800X developer row identifies Arm Cortex-A55MIPS at 400 MHz in Roku's Pico/2050X developer row; NXP PNX8935 identified in AnandTech's exact XD teardown
Memory2 GB (Roku's Benjamin/4800X developer row)256 MB in Roku's exact 2050X/2050N developer row
Software and servicesRoku 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 versionRoku lists OS 3.1 as the last compatible version for 2050X and 2050N. Service support depends on region and software; this is the original XD rather than the later Roku 2 XD
Connections
Wi-FiWi-Fi 5Wi-Fi 4
EthernetYesYes
Voice remoteYesNo
PortsHDMI, USB, Ethernet and power input (model-4800 Quick Start Guide); no microSD slot (both reviews)HDMI, Ethernet, composite video, left/right RCA analogue audio and power; no component video, optical audio or USB media port
Wi-Fi and BluetoothDual-band 802.11ac (TechRadar); Bluetooth support and up to 50% greater wireless range than the prior model (Roku's launch claim)Extended-range wireless-N; 2.4 GHz 802.11b/g/n verified in the exact-model reviews, without the XDS model's dual-band radio
Smart homeControllable through compatible Amazon Alexa and Google Assistant devices; AirPlay 2 and HomeKit support with updated software–
RemoteOriginal 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 hereOriginal infrared remote with Back, Options and Instant Replay, which replays the last seven seconds; no microphone or headphone socket
Design
TypeBoxBox
PowerSupplied mains power adaptor–
Size4.9 × 4.9 × 0.9 in (Tom's Guide)–
In the boxUltra player, voice remote, headphones, two AA batteries, Premium High Speed HDMI cable and power adaptorPlayer, infrared remote, two AAA batteries, power adaptor, RCA video/stereo cable, Getting Started Guide and Important Product Information; HDMI and Ethernet cables sold separately

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