Vizio M21d-H8 vs Polk Audio Signa S4 review

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If you have already decided that you want to buy a new soundbar, but still don’t know what exactly you want, the Vizio M21d-H8 vs Polk Audio Signa S4 comparison is here to offer you two decent solutions. The Vizio M21d-H8 was rated 5, while the Polk Audio Signa S4 has a rating 7.8. The soundbars are equipped with a different number of buttons, power, volume down, volume up, source, Bluetooth for the M21d-H8 and power, source, demo, volume down, volume up for the Signa S4.

Audio features

Each of the models under consideration has active amplification type. A noticeable difference is the number of channels that M21d-H8 has 2.1 and Signa S4 has 3.1.2. A built-in subwoofer is available only in the Vizio M21d-H8. Audio features and specs of considered models we rated 5 out of 10 in our ranking.

Streaming services

The Signa S4 can play audio from Spotify.

Connectivity

Wireless Internet connection is realized only in the Signa S4. Soundbars from this comparison have Bluetooth support. There are 1/1 HDMI inputs/outputs in the Vizio M21d-H8 versus 0/1 HDMIs in the Polk Audio Signa S4. As in the M21d-H8, so in the Signa S4 there is the HDMI Audio Return Channel (ARC). Connecting devices via USB is possible in both models. The connectivity of each of the models was estimated at 6/10. The manufacturer of the Signa S4 provides a device control application. The soundbars in this review are equipped with a microphone. The models under consideration cannot become part of a multiroom system.

Multichannel surround

Dolby Atmos audio decoder is onboard the Signa S4. Devices from this comparison cannot process surround sound due to lack of DTS:X. The M21d-H8 was rated 5/10, while the Signa S4 received a mark of 9/10 for multichannel surround.

Advantages Vizio M21d-H8 over Polk Audio Signa S4

Advantages Polk Audio Signa S4 over Vizio M21d-H8