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 1 Showing 1-20 of 503 reviews
Pros mentioned:
Accuracy
Rated 4 out of 5 stars
Fun little Gadget
|
Posted . Owned for 2 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Works well for taking high scores at parties, would not trust it for actually determining if your safe to drive. Seems pretty accurate though.
I would recommend this to a friend
Rated 5 out of 5 stars
Very handy!
|
|
Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Works great, has helped me with recovery and regaining the trust of my partner by being able to show her my BAC at any given time. Only improvement would be a date and time on the display.
I would recommend this to a friend
Pros mentioned:
Accuracy
Rated 4 out of 5 stars
Great product for the price!
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Took it with me to a party and before anyone could leave we had them use it. Everyone pasted!
I would recommend this to a friend
Pros mentioned:
Ease of use
Rated 5 out of 5 stars
A good tool to help you learn how alcohol effects
|
|
Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This helped me realize how much, and how long, alcohol effects me. It's easy to use.
I would recommend this to a friend
Rated 3 out of 5 stars
Passable, but Don't Trust It 100%!
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
I've had to blow a couple of times to get a believable result. So I would definitely not trust it to be Law Enforcement Accurate.
It is an entertaining conversation piece.
I would recommend this to a friend
Rated 5 out of 5 stars
Huff puff
|
|
Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Bought breathalyzer because I had a few DUIS when I was younger but still like to enjoy a beer now and then I have the option of checking my alcohol level at anytime
I would recommend this to a friend
Rated 1 out of 5 stars
Do not buy, get a better brand. Cheaply made
|
|
Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Product is accurate but the quality is poor and cheap.
Sensor when out within a month of usage. Best only has a 15 return and they refused to replace it.
Call the manufacturer and they required a ton of information and time to even receive a replacement.
Very dissatisfied in my purchase.
No, I would not recommend this to a friend
Pros mentioned:
Accuracy
Rated 5 out of 5 stars
I am the coolest person at the party
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Product review:
Efficient. It comes with 4 mouth pieces for when you have to test your friends. I wash them in the top rack of the dishwasher and soak them in disinfectant. While the breathalyzer will give you and immediate estimate of your drunkness, you have to wait 20 minutes after eating or drinking anything for a perfectly accurate number. It's fine, you just have to have a 20 minute wind down from the party. I think that everyone who drinks or cares about their friends who drink, should have one on their keychain.
Only one downside: remember how the back battery cover of your gameboy somehow always got lost and then one day you stopped caring because "hey, it still works"? Yeah, same thing. I lost the battery cover about a week after I bought it. I put one those little clear rubber bands around it, so my battery wouldn't fall out when every I dropped my keys.
My experience:
My friends like to have a party every couple of weeks and sometimes it gets a little.... out of control. Not only is this great party fun (pass the breathalyzer), but it has most definitely helped me save a life or two. Everyone party has that one person who swears "No IIII"mmm fiiiiiiiine. I can TOTALLY drive. It's cool," and everyone cringes with fear at the thought, but no matter what anyone says, they just keep trying to leave. It's become a ritual that at the end of the party, everyone gets the test before they leave. Those not at 0.00 get to stay until they are or spend the night on the couch. I won't have anyone endangering themselves or anyone else by drinking and driving. It's interesting though, I wasn't that popular or cool and I guess I'm still not the socialite everyone wishes I were, but because I got this breathalyzer, and forced it on everyone, I am more respected and I definitely get invited to more parties.
I would recommend this to a friend
Pros mentioned:
Accuracy, Ease of use
Rated 4 out of 5 stars
Breathalyzer
|
|
Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Product is not the best one you can buy, but for $40 it is well worth it. It has been proven to be helpful and very accurate. Product can fit on a keychain making it convenient.
I would recommend this to a friend
Pros mentioned:
Accuracy, Price
Rated 4 out of 5 stars
Can Be Inconsistent
|
|
Posted . Owned for 4 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Bought this just for fun/curiosity. Sometimes the numbers are inconsistent when multiple readings are done in a row. However, it’s a good deal for the price and in general provides a reasonable reading range. I would be hesitant to recommend if you are actually planning to use this to determine driving sobriety.
I would recommend this to a friend
Pros mentioned:
Price, Size
Rated 5 out of 5 stars
Be responsible, buy one.
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
The BACTrack has given me extra peace of mind to know that I or friends won't try the "I think I'm just fine to drive home" tactic.
This device is small and can easily be added to a key ring or put into a pocket.
$30 is a small and easy price to pay knowing that yourself, family, and friends are safe and legal to drive after drinking alcohol. It also helps keep the ones, you know who have had too much to drink, from getting behind the wheel of a vehicle.
It's better to blow into your own breathalyzer than into a police officer's breathalyzer.
As the packaging states, wait 20 minutes after food or drink before blowing into the tester. It will give a much higher reading (about .02+) if you blow right after having an alcoholic drink.
As with all drinking, be responsible.
I would recommend this to a friend
Pros mentioned:
Accuracy, Size
Rated 4 out of 5 stars
It's fun to have at parties.
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
I bought this as kind of a joke. I didn't expect it to be 100% accurate but it really is close. I have friends who are police officers and they claim its about right. It will also let me know if I'm safe to drive home after a couple of beers. Its small and light weight with a loop for your keychain. Over all its just fun.
I would recommend this to a friend
Pros mentioned:
Accuracy, Size
Rated 4 out of 5 stars
Very handy
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
This unit is small and effective. I keep it in my purse, but is small enough and equipped to be put on a keychain.
It is a decent gauge to help a person make smart decisions :-)
I would recommend this to a friend
Pros mentioned:
Ease of use, Size
Rated 4 out of 5 stars
Cool gadget
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
I bought this product in the car section while looking at stereos i thought it was a good item to add to a key chain since its so small and easy to use. Fit in my pocket without notice. Would def reccommend this item for anyone who goes out and drives dont take the chance
I would recommend this to a friend
Pros mentioned:
Ease of use, Size
Rated 5 out of 5 stars
A very good and affordable keychain BAC Analyzer
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
I recently purchased a BACtrack Go BT-KC20 keychain Breathalyzer. I have found it to be reliable and easy to use. Perfect for anyone who wants to know what their BAC level is before driving a car! Small, works in seconds, and will keep you out of trouble! I definitely would recommend this to a friend! Thanks BACtrack!
I would recommend this to a friend
Pros mentioned:
Accuracy, Price
Rated 5 out of 5 stars
Great little BAC tracker
|
|
Posted . Owned for 5 months when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Really great for getting a ballpark BAC! My guess is the low-star reviews are from user error. Never had a problem using it. Just wait 15 mins after the last drink and walhalla. You’ll also have to figure out a good pressure to blow into the he device, not too hard, but not too soft. Pretty cool and inexpensive device! Also great for party tricks as I’m sure you’ve read from others haha.
I would recommend this to a friend
Pros mentioned:
Accuracy
Rated 5 out of 5 stars
Great gift
|
|
Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This thing is great. Me and my buddy both have one. I will get a text saying .07 and the picnic is great. Or i say to him im at .05 better catch up. Would recommend to proper adults.
I would recommend this to a friend
Pros mentioned:
Accuracy
Rated 5 out of 5 stars
Accurate little device
|
Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
I have an IID in my car and this thing is apparently very accurate before I go use it! I also have some police friends who’s breathalyzer I used to test the accuracy of my device and seems almost spot on! Little device can help make responsible decisions or just be fun with testing in your friends.
I would recommend this to a friend
Pros mentioned:
Ease of use
Rated 5 out of 5 stars
Affordable, easy to use, compact
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy to use. Lightweight and simple to take with you. Good quality with low cost. Only improvement I would request is having the errors codes annotated on the device would be helpful. I had to look up BACtrack's FAQ on their website. Otherwise, I like it and would recommend it for fun or responsible decision making.
Note: Error was FL which meant not enough blow pressure. User error. Haven't recieved any other one.
I would recommend this to a friend
Pros mentioned:
Ease of use, Size
Rated 4 out of 5 stars
Great product
|
|
Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
This item could save you a lot of money, or lives. It's hard to judge how much to drink is too much. It is easy to use, and readily available, about the size of a credit card.