The VIZIO SB3821-C6 vs Samsung HW-A550 comparison proves that these soundbars have many common features. Based on our rating, SB3821-C6 has a total rating of 4.5 out of 10 versus 4.6 for HW-A550. The competitors' control buttons are different: power, input, Bluetooth, volume down, volume up and power, source, demo, volume down, volume up, respectively.
Both soundbars have active amplification type. Soundbars have the same number of channels on 2.1. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. Both models received our 5 rating of 10 for their audio features and specs.
Soundbars do not have AirPlay support. Spotify support not implemented in both soundbars.
Both models do not have WI-FI support. Rivals from our review have Bluetooth support. Only the HW-A550 supports HDMI Audio Return Channel (ARC). For connectivity, the SB3821-C6 received a rating of 6/10 versus 8/10, respectively.
Compared soundbars have no app control. None of the models under consideration have a built-in microphone. Soundbars do not have Multi-room support.
None of soundbars equipped with Dolby Atmos multichannel audio decoder. The soundbars do not support the surround sound technology DTS:X. For multichannel surround VIZIO SB3821-C6 got a rating of 5, and Samsung HW-A550 6 out of 10.