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Customer Ratings & Reviews

Your price for this item is $39.99

Customer reviews

Rating 4.1 out of 5 stars with 506 reviews

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Rating by feature

  • Value

    Rating 4.1 out of 5 stars

  • Quality

    Rating 3.8 out of 5 stars

  • Ease of Use

    Rating 4.4 out of 5 stars

Pros mentioned filter

Cons mentioned filter

85%would recommend to a friend

Customers are saying

Customers find value in the Go Keychain Breathalyzer's accuracy and ease of use, with many appreciating its convenient size. The overall performance is well-received, and the price is considered a good deal. However, some customers have reported issues with the battery life upon receiving the product.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 9 Showing 161-180 of 506 reviews
  • Pros mentioned:
    Ease of use

    Rated 4 out of 5 stars

    Easy to use.

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I like how this is a key chain and is so easy to use. I would recommend this to college students.

    I would recommend this to a friend
  • Pros mentioned:
    Size

    Rated 4 out of 5 stars

    Good Enough

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Seems to work as described. Price is right. Good size.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 4 out of 5 stars

    Decent device

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It did the job for the price point................

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 4 out of 5 stars

    Nice Tool

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Was happy to get such a handy device fro Xmas. So accurate & easy to use!

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 4 out of 5 stars

    It's ok most of the time

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It's inconsistent if you blow in it easy. It is easy to use though.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 4 out of 5 stars

    Safe drinking

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    A great product to have.....just in case!!! I bought 1 for myself and 2 as gifts!!!

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 4 out of 5 stars

    Stupid, but fun to see who can get the high score!

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    We had some fun times with this guy... Always going for the high reading.. :)

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Great for safe people

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    You can never too safe when it comes to driving. My friend Sean bought one months ago and it was the best purchase. It's important to be sure of your alcohol level especially since cops have been cracking down hard. I'd rather test it each time than risks a DUI or my life driving

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 5 out of 5 stars

    Simple Yet Effective

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is a very good device for the price, it appears to be very precise and it can come in very handy because you will probably find yourself in a situation where you have to drive after a drink. I wouldn't use it as a keychain though because it can get banged up.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 4 out of 5 stars

    4/5

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Easy to travel with and discreet. Simple and easy to use

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 4 out of 5 stars

    works great

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    gives an accurate, I hope!, reading quickly. Creates peace of mind.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Safety first - don't drink & drive

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Your kid won't drink much at college? Get them a breathalyzer just in case which they might find fun at parties and they will split Uber or Lyfte rides with friends instead of risking driving drunk or buzzed which is also drunk. My daughter bought one for her friend for her birthday...and she is a true friend. This brand & model shows more info than some others.

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 4 out of 5 stars

    Nice to have.

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This seems pretty accurate. It's good to have if you go out and have a drink.

    I would recommend this to a friend
  • Rated 2 out of 5 stars

    Not accurate

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Not very accurate. I’m completely sober from alcohol. When I drink an energy drink it reads at .02-.04.i bought the cheaper version so im not surprised and i still use to test my “sober” partner and teenagers when needed

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 4 out of 5 stars

    Gets the job done

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Pretty accurate, for a personal use for friends and family.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 4 out of 5 stars

    Ok for trials

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Item meet the needs at the time and was what it was written up to do.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Size

    Rated 5 out of 5 stars

    gene's review

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    very compact, and easy to use. its good to see if your good to drive home

    I would recommend this to a friend
  • Pros mentioned:
    Accuracy

    Rated 4 out of 5 stars

    Works well and convenient

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought as a gift. He loved it. Fun and great safety tool. Works.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 4 out of 5 stars

    Breathalyzer

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works well. Better safe than sorry:( .....................

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    not to expenseive

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    we have had a lot of fun with this at a party and it is also useful

    I would recommend this to a friend