The VIZIO SB2821-D6 vs VIZIO SB3820-C6 comparison proves that these soundbars have many common features. Based on our rating, SB2821-D6 has a total rating of 4.4 out of 10 versus 4.6 for SB3820-C6. The set of control buttons for competitors is the same and is: power, input, Bluetooth, volume down, volume up.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the VIZIO SB2821-D6 has 2.1 versus 2.0 for the VIZIO SB3820-C6. Competitors do not have a built-in subwoofer. The VIZIO SB2821-D6 got our rating of 6 out of 10, and the VIZIO SB3820-C6 5 for its audio features and specs.
Soundbars do not have AirPlay support. Both models do not support Google Play Music. Spotify support not implemented in both soundbars.
Both models do not have WI-FI support. Rivals from our review have Bluetooth support. The HDMI Audio Return Channel (ARC) does not support any one of these models. Both soundbars have a USB connector. For connectivity, the SB2821-D6 received a rating of 5/10 versus 6/10, respectively.
App control is available for the SB3820-C6. 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. Compared devices do not have DTS Virtual:X support. For multichannel surround, each of the opponents received 2 points out of 10.
The VIZIO SB3820-C6 is better soundbar in this comparison. Check VIZIO SB3820-C6 price