VIZIO SB3821-C6 vs Polk Audio Signa S3 review

Votes 1 1
Rating 5 5

VIZIO SB3821-C6 vs Polk Audio Signa S3 comparison chart

Overall
VIZIO SB3821-C6
4.5
Polk Audio Signa S3
6.4
5
9

VIZIO SB3821-C6 vs Polk Audio Signa S3 review

VIZIO SB3821-C6
vs
Polk Audio Signa S3

The VIZIO SB3821-C6 vs Polk Audio Signa S3 comparison shows that these models have some important differences and common features. The VIZIO SB3821-C6 was rated 4.5, while the Polk Audio Signa S3 has a rating 6.4. The soundbars are equipped with a different number of buttons, power, input, Bluetooth, volume down, volume up for the SB3821-C6 and power, source, demo, volume down, volume up for the Signa S3.

Audio features

Each of the models under consideration has active amplification type. By the number of channels, the devices do not differ. The built-in subwoofer is not implemented in any of these models. An external subwoofer can be connected to any of the units in this comparison. Rate 5 out of 10 received the VIZIO SB3821-C6 for audio features and specs, but the Polk Audio Signa S3 received 4 out of 10.

Streaming services

The Signa S3 can play audio from Spotify.

Connectivity

Wireless Internet connection is realized only in the Signa S3. Soundbars from this comparison have Bluetooth support. The HDMI Audio Return Channel (ARC) is implemented only in the Signa S3. Connecting devices via USB is possible in both models. We rated the connectivity of the SB3821-C6 at 6 out of 10, while the Signa S3 was rated 5/10.

Features

The manufacturer of the Signa S3 provides a device control application. The Polk Audio Signa S3 equipped with a microphone. The models under consideration cannot become part of a multiroom system.

Multichannel surround

Dolby Atmos audio decoder support is not implemented in either the SB3821-C6 or Signa S3. Devices from this comparison cannot process surround sound due to lack of DTS:X. The SB3821-C6 was rated 5/10, while the Signa S3 received a mark of 4/10 for multichannel surround.

Advantages Polk Audio Signa S3 over VIZIO SB3821-C6

  • Amazon Music compatible
  • Spotify support
  • WI-FI enabled
  • Audio return channel (HDMI ARC) support
  • App control
  • Microphone
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Common

Product

VIZIO SB3821-C6
Polk Audio Signa S3

Model

SB3821-C6
Signa S3

Brand

VIZIO
Polk Audio

Reviews

6692
0

General

Placement type

table-top, wall-mountable
table-top, wall-mountable

Connection to source

wired, wireless
wired, wireless

Soundbar buttons

power, input, Bluetooth, volume down, volume up
power, source, demo, volume down, volume up

Audio features

Built-in channels

2.1
2.1

Amplification type

active
active

Output power, W

Separate speaker (in package)

0
0

Separate speaker connections

has not
has not

Subwoofer

Built-in subwoofer

Separate subwoofer (in package)

Separate subwoofer connections

wireless
wireless

Streaming services

Apple Music (AirPlay)

Amazon Music

Spotify

Other streaming services

has not
Pandora, SoundCloud

Connectivity

WI-FI

Bluetooth

Ethernet (RJ45)

0
0

NFC

HDMI input/output

0/0
1/0

HDMI ARC

HDMI eARC

HDMI CEC

Optical digital input/output

1/0
1/0

USB

1 (USB 2.0)
1 (USB 2.0)

Coaxial digital input/output

1/0
0/0

Analog audio input/output (RCA)

1/0
0/0

Headphone output

0
0

Subwoofer output

0
0

Features

Voice control

App control

Microphone

Remote control

Multi-room

Multichannel surround

Dolby Atmos

Dolby (other)

Dolby Digital
Dolby Digital

DTS:X

DTS (other)

DTS TruSurround

User manual

Manual

N/A

Dimensions

Size (Wx H x D), cm/in

96.5 x 7.6 x 7.6/38 x 3 x 3
89.8x5.6x8.3/35.3x2.1x3.2

Weight, kg/pounds

2.6/5.8
2.9/6

Other

Release year

2015
2020
VIZIO SB3821-C6
Polk Audio Signa S3
VIZIO SB3821-C6
Polk Audio Signa S3

Soundbars SoundStrokes Art comparison rating

  • better
  • worse
  • 4.5
  • 6.4
  • 4.5VIZIO SB3821-C6
  • 6.4Polk Audio Signa S3

VIZIO SB3821-C6 competitors

Polk Audio Signa S3 competitors