Vizio M21d-H8 vs VIZIO SB4451-C0

M21d-H8 vs SB4451-C0 comparison chart

Overall
Vizio M21d-H8
5
VIZIO SB4451-C0
7.2
6
5
Votes 1 1
Rating 5 5
VIZIO SB4451-C0

Nov 29, 2019

A great value for the money, one of the best model Vizio produces for today - VIZIO SB4451-C0. The Vizio SB4451-C0 is the company's new penultimate sound bar and is the "cheapest" model to feature HD...

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Common

Product

Vizio M21d-H8
VIZIO SB4451-C0

Model

M21d-H8
SB4451-C0

Brand

Vizio
VIZIO

Reviews

4
121

General

Placement type

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

Connection to source

wired, wireless
wired, wireless

Soundbar buttons

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

Audio features

Built-in channels

2.1
5.1

Amplification type

active
active

Output power, W

Separate speaker (in package)

0
2

Separate speaker connections

has not
wireless

Subwoofer

Built-in subwoofer

Separate subwoofer (in package)

Separate subwoofer connections

wireless

Streaming services

Apple Music (AirPlay)

AirPlay

Amazon Music

Spotify

Other streaming services

has not
VIZIO SmartCast

Connectivity

WI-FI

Bluetooth

Ethernet (RJ45)

0
1

NFC

HDMI input/output

1/1
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

0/0
1/0

Analog audio input/output (RCA)

1/0
1/0

Headphone output

0
0

Subwoofer output

0
0

Features

Voice control

Amazon Alexa, Google Assistant, Siri

App control

Microphone

Remote control

Multi-room

Multichannel surround

Dolby Atmos

Dolby (other)

Dolby Digital
Dolby Digital

DTS:X

DTS (other)

DTS Virtual:X
has not

User manual

Manual

N/A

Dimensions

Size (Wx H x D), cm/in

98 x 11.4 x 18.8/39 x 5 x 7
111.7 x 7.6 x 7.6/44 x 3 x 3

Weight, kg/pounds

3/6
4.5/10.8

Other

Release year

2020
2016
Vizio M21d-H8
VIZIO SB4451-C0
Vizio M21d-H8
VIZIO SB4451-C0

Soundbars CHooseratoR comparison rating

  • better
  • worse
  • 5
  • 7.2
  • 5Vizio M21d-H8
  • 7.2VIZIO SB4451-C0