The VIZIO SB3821-C6 vs VIZIO SB46514-F6 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 7.6 for SB46514-F6. The competitors' control buttons are different: power, input, Bluetooth, volume down, volume up and power, volume down, volume up, input, Bluetooth, 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 5.1.4 for the VIZIO SB46514-F6. 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 VIZIO SB46514-F6 8 for its audio features and specs. Both models do not support Google Play Music. Spotify support not implemented in both soundbars.
Only the VIZIO SB46514-F6 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the SB46514-F6 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 SB46514-F6. A built-in microphone is present only on the SB46514-F6. Soundbars do not have Multi-room support.
Only the SB46514-F6 has a Dolby Atmos multichannel audio format support. The soundbars do not support the surround sound technology DTS:X. The SB46514-F6 supports DTS Virtual:X. For multichannel surround VIZIO SB3821-C6 got a rating of 2, and VIZIO SB46514-F6 7 out of 10.
The VIZIO SB46514-F6 is better soundbar in this comparison. Check VIZIO SB46514-F6 price