The VIZIO SB2821-D6 vs Bose Smart Soundbar 300 comparison shows that these models have some important differences and common features. The VIZIO SB2821-D6 was rated 4.8, while the Bose Smart Soundbar 300 has a rating 7.6. The soundbars are equipped with a different number of buttons, power, input, Bluetooth, volume down, volume up for the SB2821-D6 and microphone, action for the Smart Soundbar 300.
Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that SB2821-D6 has 2.1 and Smart Soundbar 300 has 3.0. The built-in subwoofer is not implemented in any of these models. An external subwoofer connects to the SB2821-D6 via wireless, but Smart Soundbar 300 has wired and wireless connection type. Rate 6 out of 10 received the VIZIO SB2821-D6 for audio features and specs, but the Bose Smart Soundbar 300 received 5 out of 10. The Smart Soundbar 300 can play audio from Spotify.
Wireless Internet connection is realized only in the Smart Soundbar 300. Soundbars from this comparison have Bluetooth support. The HDMI Audio Return Channel (ARC) is implemented only in the Smart Soundbar 300. We rated the connectivity of the SB2821-D6 at 4 out of 10, while the Smart Soundbar 300 was rated 8/10. The manufacturer of the Smart Soundbar 300 provides a device control application. The Bose Smart Soundbar 300 equipped with a microphone. The Bose Smart Soundbar 300 may become part of a multiroom system.
Dolby Atmos audio decoder support is not implemented in either the SB2821-D6 or Smart Soundbar 300. Devices from this comparison cannot process surround sound due to lack of DTS:X. The SB2821-D6 was rated 5/10, while the Smart Soundbar 300 received a mark of 4/10 for multichannel surround.