It makes sense comparing VIZIO SB3821-C6 vs JBL Bar 5.1 because they both are able to give some premium features. Based on our rating, SB3821-C6 has a total rating of 4.5 out of 10 versus 7.2 for Bar 5.1. The competitors' control buttons are different: power, input, Bluetooth, volume down, volume up and power, volume down, volume up, input, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the VIZIO SB3821-C6 has 2.1 versus 5.1 for the JBL Bar 5.1. Competitors do not have a built-in subwoofer. Rivals have wireless connection to separate subwoofer. The VIZIO SB3821-C6 got our rating of 5 out of 10, and the JBL Bar 5.1 8 for its audio features and specs. Spotify support is available on the Bar 5.1.
Both models do not have WI-FI support. Rivals from our review have Bluetooth support. Only the Bar 5.1 supports HDMI Audio Return Channel (ARC). Both soundbars have a USB connector. For connectivity, the SB3821-C6 received a rating of 6/10 versus 8/10, respectively. App control is available for the Bar 5.1. 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 JBL Bar 5.1 4 out of 10.