The Vizio V21-H8 vs Denon HEOS BAR comparison proves that these soundbars have many common features. Based on our rating, V21-H8 has a total rating of 5.5 out of 10 versus 7 for HEOS BAR. The competitors' control buttons are different: power, volume down, volume up, source, Bluetooth and volume down, volume up, sound off, 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 3.0 for the Denon HEOS BAR. Competitors do not have a built-in subwoofer. The V21-H8 has a wired and wireless connection to separate subwoofer, and the HEOS BAR - wireless. Both models received our 6 rating of 10 for their audio features and specs.
Soundbars do not have AirPlay support. Spotify support is available on the HEOS BAR.
Both models do not have WI-FI support. Rivals from our review have Bluetooth support. The Vizio V21-H8 has 0/1 HDMI inputs/outputs versus 4/1 of the Denon HEOS BAR. 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 7/10, respectively.
App control is available in every soundbar. A built-in microphone is present in each model. Multi-room is only available for the Denon HEOS BAR.
None of soundbars equipped with Dolby Atmos multichannel audio decoder. The soundbars do not support the surround sound technology DTS:X. For multichannel surround, each of the opponents received 5 points out of 10.