Vizio V21-H8 vs JBL BAR 300 comparison definitely makes sense. Based on our rating, V21-H8 has a total rating of 5.5 out of 10 versus 8.4 for BAR 300. The competitors' control buttons are different: power, volume down, volume up, source, Bluetooth and power, volume down, volume up, respectively.
Both soundbars have active amplification type. A significant difference between the units in the number of channels, the Vizio V21-H8 has 2.1 versus 5.0 for the JBL BAR 300. Competitors do not have a built-in subwoofer. The V21-H8 has a wired and wireless connection to separate subwoofer, and the BAR 300 - wireless. Both models received our 6 rating of 10 for their audio features and specs.
Spotify support is available on the BAR 300.
Only the JBL BAR 300 can connect to the Internet via WI-FI. Rivals from our review have Bluetooth support. The Vizio V21-H8 has 0/1 HDMI inputs/outputs versus 1/1 of the JBL BAR 300. The HDMI Audio Return Channel (ARC) feature supports both devices. Both soundbars have a USB connector. For connectivity, the V21-H8 received a rating of 6/10 versus 10/10, respectively. App control is available in every soundbar. A built-in microphone is present in each model. Soundbars do not have Multi-room support.
Only the BAR 300 has a Dolby Atmos multichannel audio format support. The soundbars do not support the surround sound technology DTS:X. For multichannel surround Vizio V21-H8 got a rating of 5, and JBL BAR 300 7 out of 10.