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Customer Ratings & Reviews

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 admire the Go Keychain Breathalyzer for its accuracy, portability, and ease of use. They appreciate how it helps them stay safe and regain trust by showing their blood alcohol content at any time. While some find it entertaining, a few users have concerns about its 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 11 Showing 201-220 of 506 reviews
  • Pros mentioned:
    Price

    Rated 4 out of 5 stars

    Good for the price

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

    Reasonable price, works great, good to have around

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

    Rated 4 out of 5 stars

    great for partys

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

    for what you paid its excellent. Its great for partys

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

    Rated 5 out of 5 stars

    My new go-to gift for 21 year olds

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

    I bought this for a family member turning 21. She has used it and says it's good to have, especially in a college town! Easy to carry along on her key chain and it works well.

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

    Rated 5 out of 5 stars

    Great present for 21 year old birthday present.

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Brought 2 for twins that turned 21. Everyone wants to use it

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

    Rated 5 out of 5 stars

    Good Pocket Size Breathalyzer

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

    Got this for my husband, so he’s safe to drive after an evening out with clients, etc. We tested it multiple times on someone totally sober, and on someone who’d had a few drinks. Works well!

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

    Rated 5 out of 5 stars

    A fun party gadget

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

    This little device is awesome. It is a descent tool for actually determining BAC; but if you have to check before driving, you should probably just not drive. It evolved more so into a fun gadget to bring out at parties.

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

    Rated 5 out of 5 stars

    BAT

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very accurate and easy to use this product as good as higher end one

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

    Rated 5 out of 5 stars

    Relatively accurate with good battery life

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

    Relatively accurate with good battery life. Battery compartment door sometimes falls though.

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

    Rated 5 out of 5 stars

    Actually works!

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

    Bought this as a joke to test my kid and his friends as a joke, but it actually works. They used it all night at a home party, lol.

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

    Rated 5 out of 5 stars

    Works great

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

    I got this for my son when he turned 21 so he could check his level any time he was thinking of driving. He has used it several times and carries it with him.

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

    Rated 5 out of 5 stars

    Funny

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought this as a Christmas gift and people enjoyed it

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

    Rated 5 out of 5 stars

    Fun gadget

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

    Bought these for father day gifts and they are quite fun as well as accurate. Nice to have if you are out on the town so you can call a cab or uber rather than risk driving unsafely

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

    Rated 5 out of 5 stars

    Great Product

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

    Great product ! Comes in handy when I'm out drinking with people or when I think my friends or family have had too much to drink and I goes right on my Keychain !

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

    Rated 5 out of 5 stars

    Works like you want!

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

    Great little tool to keep around while going out to dinner or out for the night. Helps you keep in check if you should drive; wait awhile or just get picked up!

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

    Rated 5 out of 5 stars

    No DUI’s!

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

    This is a great product for sunny Las Vegans. I bring this with me for friends who want to get in the car and think they can drive. I have saved lives with this product!

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

    Rated 5 out of 5 stars

    Be responsible!

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I bought this as a gag gift for my friend, and it works really well actually. The Safeway to keep track of where you’re at.

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

    Rated 5 out of 5 stars

    To drive or not

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Pretty cool way to see if you should get behind the wheel of a car or not. Not a perfect test, but gives you a decent idea!

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

    I picked this up in store

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

    I tried this when got home. First by using mouth alcohol in it and it did not read it. I tried after drinking a mixed drink it did not read it. I am ot sure if I did not drink enough or not. I have a earlier model from a different vendor and it registers both mouthwash and mixed drink.

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

    Rated 5 out of 5 stars

    Awesome gift for new and experienced drivers

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

    got this for sort of a gag, but it is great and everyone should have this for themselves. you will be amazed how quick you can get over the limit and still "Feel fine to Drive". don't risk it - get it!

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

    Rated 5 out of 5 stars

    Great

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product, highly recommend it. It is so easy to use and its durability is fantastic. Go and buy it today.

    I would recommend this to a friend
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