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Samsung HW-QS90H vs Sonos Arc Ultra

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

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SamsungHW-QS90HSonosArc Ultra
Overview
Released2026October 2024
Sound
TypeSoundbarSoundbar
Channels7.1.29.1.4
Dolby AtmosYesYes
Drivers13 speakers including four built-in woofers, centre, side, wide and upward-firing speakers; no separate subwoofer or rear speakers included. Optional SWA-9500S rear speakers expand Atmos/DTS:X output to 9.1.4 channels according to the manualNine silk-dome tweeters (two firing upwards), six midwoofers and a Sound Motion woofer (four motors, dual membrane)
Amplifiers–Fifteen class-D digital amplifiers
Audio formatsDolby Atmos Music, Dolby Atmos, Dolby Digital, Dolby Digital Plus, Dolby TrueHD, Eclipsa Audio and multichannel LPCM. DTS:X is identified in the UK feature text and manual's input/output tables; the manual notes DTS licensing varies by model and region. MP3, AAC, OGG, FLAC, WAV, ALAC and AIFF decodingStereo PCM, Dolby Digital, Dolby Digital Plus, Dolby Atmos (Dolby Digital Plus); with HDMI eARC also Dolby Atmos, Dolby TrueHD, Dolby Atmos (TrueHD), multichannel PCM and Dolby multichannel PCM; DTS Digital Surround
Room tuningSpaceFit Sound Pro automatic calibration using the built-in microphone; Standard, Surround, Game Pro and AI Adaptive Sound modes. Active Voice Amplifier Pro, Sound Elevation, Auto Volume, voice enhancement and Night Mode; seven-band EQ in Standard modeTrueplay (iOS and Android); bass, treble and loudness adjustable; Speech Enhancement with four levels; Night Sound
Connections
Wi-FiYesYes
BluetoothYesYes
AirPlayYesYes
HDMI eARCYesYes
Voice assistantsAlexaAlexa and Sonos Voice Control
Wi-Fi–Wi-Fi 6 (802.11a/b/g/n/ac/ax), 2.4 GHz and 5 GHz
BluetoothBluetooth 5.3 audio streamingBluetooth 5.3
PortsOne HDMI input with 4K 60 Hz and HDR10+ passthrough; one HDMI eARC/ARC output with CEC; optical input; USB service port for firmware updates, not music playbackHDMI eARC; optical through an adapter sold separately
StreamingAirPlay, Google Cast, Spotify Connect, Tidal Connect, Roon Ready and Bluetooth; Roon requires a Roon core serverApple AirPlay 2
Multi-roomQ-Symphony combines compatible Samsung TV and audio-device speakers. Wireless Dolby Atmos TV transmission requires compatible 2022–2026 Samsung TVs. Group Play supports a host plus nine additional compatible devices on the same 5 GHz Wi-Fi networkGroups with other Sonos products over Wi-Fi; add a Sonos Sub (or two) and rear speakers; TV Audio Swap to Sonos Ace headphones
AppSmartThings and Samsung Sound app; Wi-Fi setup requires a Samsung accountSonos app (iOS and Android); works with the TV remote
Design
Weight6.7 kg5.9 kg
ControlsIncluded remote, physical volume/source/microphone buttons, HDMI CEC and app controls; LED indicators and optional voice feedback, without an alphanumeric displayCapacitive touch controls (play, pause, skip, replay, volume, voice mute, grouping); Bluetooth button; microphone switch
MicrophonesBuilt-in microphone for room calibration and Alexa voice control, with microphone-off button. Works with Google Home requires an external compatible device; no built-in Google Assistant or BixbyFar-field microphone array with beamforming and multichannel echo cancellation; switch cuts power to the microphones
MountingIncluded wall-mount bracket and rubber feet; Convertible Fit gyroscope detects tabletop or wall orientation and adjusts driver rolesM5 × 0.8 mm thread, 6.5 mm deep; Arc Ultra Wall Mount sold separately
Size1245 × 68.8 × 125 mm (width × height × depth). Main weight is the soundbar itself; 8.9 kg is the packaged set weight75 × 1,178 × 110.6 mm (H × W × D)
ColoursGraphite blackBlack, White
In the boxSoundbar, remote control, power cable, wall-mount components and rubber feet; manual notes HDMI cable and remote batteries may vary by regionArc Ultra, power cable (2 m), HDMI cable (1.5 m), documentation

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