VIZIO SB3821-C6 vs Vizio M21d-H8 review
l would like to share my experience after comparing and testing two soundbars – VIZIO SB3821-C6 vs Vizio M21d-H8. The VIZIO SB3821-C6 was rated 4.5, while the Vizio M21d-H8 has a rating 5. The soundbars are equipped with a different number of buttons, power, input, Bluetooth, volume down, volume up for the SB3821-C6 and power, volume down, volume up, source, Bluetooth for the M21d-H8.
Audio features
Each of the models under consideration has active amplification type. By the number of channels, the devices do not differ. A built-in subwoofer is available only in the Vizio M21d-H8. Audio features and specs of considered models we rated 5 out of 10 in our ranking.
Streaming services
Soundbars do not have AirPlay support. The units in this comparison do not support Spotify.
Connectivity
Both models do not have a wireless Wi-Fi interface. Soundbars from this comparison have Bluetooth support. The HDMI Audio Return Channel (ARC) is implemented only in the M21d-H8. Connecting devices via USB is possible in both models. The connectivity of each of the models was estimated at 6/10. None of these soundbars can be controlled using the app. The Vizio M21d-H8 equipped with a microphone. The models under consideration cannot become part of a multiroom system.
Multichannel surround
Dolby Atmos audio decoder support is not implemented in either the SB3821-C6 or M21d-H8. Devices from this comparison cannot process surround sound due to lack of DTS:X. The same score of 5/10 was put to the soundbars for multichannel surround support.
Advantages VIZIO SB3821-C6 over Vizio M21d-H8
- Separate subwoofer in package
Advantages Vizio M21d-H8 over VIZIO SB3821-C6
- Built-in subwoofer
- Audio return channel (HDMI ARC) support
- Microphone
Common
Product
Model
Brand
Reviews
General
Placement type
Connection to source
Soundbar buttons
Audio features
Built-in channels
Amplification type
Output power, W
Separate speaker (in package)
Separate speaker connections
Subwoofer
Built-in subwoofer
Separate subwoofer (in package)
Separate subwoofer connections
Streaming services
Apple Music (AirPlay)
Amazon Music
Spotify
Other streaming services
Connectivity
WI-FI
Bluetooth
Ethernet (RJ45)
NFC
HDMI input/output
HDMI ARC
HDMI eARC
HDMI CEC
Optical digital input/output
USB
Coaxial digital input/output
Analog audio input/output (RCA)
Headphone output
Subwoofer output
Features
Voice control
App control
Microphone
Remote control
Multi-room
Multichannel surround
Dolby Atmos
Dolby (other)
DTS:X
DTS (other)
User manual
Dimensions
Size (Wx H x D), cm/in
Weight, kg/pounds
Other
Release year
Soundbars SoundStrokes Art comparison rating
- 4.5VIZIO SB3821-C6
- 5Vizio M21d-H8
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