VIZIO SB3621n-F8M vs VIZIO SB3651-F6 comparison definitely makes sense. Based on our rating, SB3621n-F8M has a total rating of 4.6 out of 10 versus 6.8 for SB3651-F6. 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 SB3621n-F8M has 2.1 versus 5.1 for the VIZIO SB3651-F6. Competitors do not have a built-in subwoofer. The SB3621n-F8M has a wireless connection to separate subwoofer, and the SB3651-F6 - wired and wireless. The VIZIO SB3621n-F8M got our rating of 6 out of 10, and the VIZIO SB3651-F6 8 for its audio features and specs.
Soundbars do not have AirPlay support. Spotify support is available on the SB3651-F6.
Only the VIZIO SB3651-F6 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. Only the SB3651-F6 supports HDMI Audio Return Channel (ARC). For connectivity, the SB3621n-F8M received a rating of 4/10 versus 8/10, respectively.
App control is available in every soundbar. 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 SB3621n-F8M got a rating of 4, and VIZIO SB3651-F6 6 out of 10.
The VIZIO SB3651-F6 is better soundbar in this comparison. Check VIZIO SB3651-F6 price