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Vizio S4251W-B4

alaTest has collected and analyzed 676 reviews of Vizio S4251W-B4. The average rating for this product is 4.5/5, compared to an average rating of 4.3/5 for other products in the same category for all reviews. Reviews about the design and size are overall positive. The price and usability are also appreciated. Views are divided on the reliability.

usability, price, size, design

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the Vizio S4251W-B4 is awarded an overall alaScore™ of 88/100 = Very good quality.

Review analysis

(Based on 676 reviews)

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Consumer review ( review summary for Vizio S4251W-B4


alaTest has collected and analyzed 135 user reviews of Vizio S4251W-B4 from The average user rating for this product is 4.3/5, compared to an average user rating of 4.2/5 for other products in the same category on People really like the design and size. The price and usability are also appreciated. There are some less positive views about the reliability.

usability, price, size, design


90% of the reviews on give this product a positive rating.

May, 2020

Expert review by : Will Greenwald (

Vizio S4251W-B4 Home Theater Sound Bar


The Vizio S4251W-B4 soundbar offers full surround sound thanks to its wireless subwoofer and satellites, but its sound quality isn't quite up to snuff.

5.1-channel surround sound. Bluetooth.

Mediocre audio quality.

The Vizio S4251W-B4 is a decent soundbar that offers genuine rear channels and Bluetooth support, but its style and sound quality don't hold up against similar-priced soundbars that offer virtual surround sound. The Editors' Choice Sony HT-CT260 costs...

May, 2013

Expert review by : Matthew Moskovciak Steve Guttenberg (

Vizio S4251w-B4 review: A sterling sound bar for surround-sound devotees


The S4251w-B4 sports rear speakers for unparalleled home theater sonics from a sound bar, although it has some quirks.

The ; sound bar includes two rear speakers, allowing it to deliver a real surround-sound experience from a sound bar system. Its smart design lets you to connect the rear speakers to the wireless subwoofer in the back of the room, which minimizes the...

The sound bar may block your TV's remote sensor when used in tabletop position. Also, if you use your TV to switch inputs, you likely won't get the best possible surround experience, although most listeners won't notice. And there's no guided speaker...

Vizio's S4251w-B4 sports rear speakers for unparalleled home theater sonics from a sound bar, although it has some quirks.

May, 2013

Consumer review (

For the price this is an outstanding product.


I would be amazed if someone can find anything in this price range that sounds this good. No it's not the top of the line sound system, but it's not supposed to be for this price. Most systems in this price range and some twice as much don't sound half...

Super easy setup, very good surround sound, No unsightly wires for rear speakers, Ability to control volume with DirecTV remote,Easy Blue tooth setup.

No preset listening modes, bass could be richer, music sounds slightly distorted

Jan, 2015

Consumer review (

very good for $


As a 'purist' audiophile I was expecting a miracle for this low a price point after reading all the reviews. After a few days of getting this set up correctly I'm quite pleased. As others have stated, 9 times of 10 you should run the optical or digital...

Very good price. Good sonics. Wireless sub to allow hassle free placement of sub and surround speakers. 5.1 if run optical from hd cable box to bar.

No removable grill. 1 driver in surround speakers. Manual should be more specific on how to get true 5.1 (had to set cable box to dolby digital also)

Dec, 2014

Consumer review (

Super great sound quality, awesome surround sound set up.


I love it. Really affordable and great value.

The setup, sound quality, surround sound

You can't use a universal remote to change the input of the speakers

Dec, 2014

Consumer review (

happy, not perfect but much better than tv speakers.


wasnt sure what to expect but needed an upgrade from regular tv speakers. i was very happy. sounds great for sports, movies and video games. would highly recommend.

does the job, sounds great. price

not a bose, bluetooth is a little clumsy at times

Oct, 2014

Consumer review (

awesome sound.


Awesome sound for the price. Bluetooth subwoofer connectivity is a plus. I can live with the lag time but not the trouble of reaching out for the subwoofer's power button which is all the way at the bottom back. Subwoofers are meant to be on one of the...

Bluetooth subwoofer connectivity

Subwoofer Power button

May, 2014

Consumer review (

This is the best home theater soundbar for the money!


FIRST NOTE: DO THE FIRMWARE UPDATE! CHECK VIZIO WEBSITE This is hands down the best value for a soundbar system. You will not be disappointed! It's ideal for any apartment sized to medium sized living room. It sounds great with both music and movies...

The sound quality is great! The system is also a cinch to setup AND use. Translation, wife friendly lol

Replace the included optical cable that comes with the unit. You will get even better sound.

Oct, 2013

Consumer review (

Great sound with an amazing price. Can't ask for more!


I had gone into Best Buy to check out some sound bars to replace my cheezy cheap surround system. From what Best Buy had on display to test, none of them met my standards in audio quality for the price range I as trying to stay under. The best product...

Remote has LCD screen. Remote control also controls Bluetooth device. Wireless subwoofer. Rear satellite speakers for true surround sound. Sleek minimal design and look. Quality feel and weight to the product. Easy to install. Multiple inputs.

Remote LCD screen does not light up. Remote signal must be clearly pointing in the direction of the sound bar. Subwoofer and satellite speaker cables provided could be longer.

Sep, 2013

Consumer review (

I am very happy with what I have.


I have never owned a soundbar before and wasn't quite sure where to start. Having a technology background I do know that it can be beneficial to stay with the same brand for multiple pieces of equipment. I have a Vizio 55" 3D T.V., so I decided to...

Without prior experience with soundbars, to me it has great sound (don't know what some people are complaining about in the reviews??). My size of TV it doesn't block IR receiver. Pairs nicely with Vizio TV's.

For some, the lag when first turning TV on. For me, the sound increases too much at lower levels. It is hard to find that happy medium when turning the volume up. At level 2 for some shows the center is too low, but at level 2.5 or 3 it is too loud.

Sep, 2013