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Customer Ratings & Reviews

Customer reviews

Rating 4.5 out of 5 stars with 189 reviews

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Rating by feature

  • Value

    Rating 4.3 out of 5 stars

  • Quality

    Rating 4.5 out of 5 stars

  • Ease of Use

    Rating 4.6 out of 5 stars

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Cons mentioned filter

89%would recommend to a friend

Customers are saying

Customers value the C6 Keychain Breathalyzer for its accuracy and ease of use. Many find its overall performance suitable for responsible use, and appreciate its compact size. The only concern expressed by a few customers is regarding the device's battery life.

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 5 Showing 81-100 of 189 reviews
  • Pros mentioned:
    Overall performance

    Rated 4 out of 5 stars

    Pretty good

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

    This was the upgrade I got to the one that broke and I must say the Quality is better and it does give you a reading a lot faster I trust it a lot more

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

    Rated 5 out of 5 stars

    Great gadget

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

    Great breathalyzer. Had to buy this for my bar to check a manager that was drinking on the job. Was well worth the money spent

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

    Rated 5 out of 5 stars

    Keep Safe on the road!

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

    It help so much for my sister need, Good day too..!

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

    Rated 5 out of 5 stars

    Good

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It works great i use it all the time i would recommend

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

    Rated 5 out of 5 stars

    Great for college kids

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I got this for my son for Christmas. Him and his college friends use it all the time and it’s very accurate.

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

    Rated 4 out of 5 stars

    Pretty good

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

    Readings seem to be accurate. Very important to follow the rules before testing.

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

    Rated 5 out of 5 stars

    Awesome

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

    This looked cool to have. I bought it with mostly points and love it. Not exactly sure if the readings are accurate, but it’s very easy to use.

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

    Rated 5 out of 5 stars

    Surprised with its accuracy

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Wow. It really measures it accurately. Just don’t do the test immediately after you drink, try it after 10 minutes of drinking

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

    Rated 5 out of 5 stars

    10/10

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

    THIS PRODUCT HAS SAVED ME SO MANY TIMES!!! It is extremely accurate and I have recommended to SO many people.

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

    Rated 5 out of 5 stars

    Bactrack

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very convenient and portable detector. Accurate too

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

    Rated 5 out of 5 stars

    BAC monitor keychain

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Accurate and does the job if I’m feeling doubtful I always test twice just to make sure results are consistent

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

    Rated 4 out of 5 stars

    Fun and responsible

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

    Seems to be fairly accurate. Although doing multiple tests in a row gets different results, they are fairly close and consistent.

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

    Rated 5 out of 5 stars

    Great

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

    Works really well! Can bluetooth to your phone and seems to be fairly accurate. It’s been great at parties to see who’s having the most fun.

    I would recommend this to a friend
  • Cons mentioned:
    Battery life

    Rated 1 out of 5 stars

    Fire Hazard!!!

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I've bought two of these and they both have the same issue now after 3-6 months of owning them. They drain a battery completely dead in about 5 minutes and get so hot that I've had my leg physically burned by the unit. Not only do they pose a fire and burn hazard, but, as with all breathalyzers, the more you use them the less accurate they become. There are times where I know I'm under .08 because I only drank 1 24oz 12% drink 6 hours ago but it would read over .08... I still have both of my malfunctioning units, I think I'm going to make some videos on them to spread awareness for the dangers of owning one of these. Drink responsibly and don't burn down your house with one of these.

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

    Rated 5 out of 5 stars

    Bought it for a 21st birthday gift

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

    Bought it for a 21st birthday gift. Told her use this if she has been drinking whatsoever to verify she is safe to drive

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

    Rated 5 out of 5 stars

    Fun party toy

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

    Works great. Great fun for a party and good way to make sure you're good to drive

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

    Rated 4 out of 5 stars

    Ok

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

    Haven’t really used much. Seems like it works okay. Really don’t have anything to test it to make sure.

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

    Rated 5 out of 5 stars

    Works great.

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Reliable. Guess your BAC and see if your right. We have our friends do it with us.

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

    Rated 5 out of 5 stars

    Great tool for checking your level

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

    Great little tool for checking your blood alcohol level To know when it's safe to drive

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

    Rated 5 out of 5 stars

    Breathalyzer

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great little breathalyzer for the go. Comes in handy and works great

    I would recommend this to a friend
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