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Top 6 Best Breathalyzers on the Market in 2021 Review

A personal breathalyzer can literally save your life. Many of us think we know our limits, but in some states, you only need to blow a 0.05% to face a DUI. This comes with a fine of up to $10,000 and can lead to you losing your job or even facing imprisonment! With the best personal breathalyzer, one blow, and know you’re good to go!

But what if you rarely drink? Or don’t even own a car? Is it still worth buying a breathalyzer? Well, actually, yes, it is. And here’s why…

You may be surprised to know, some of today’s modern, personal breathalyzers are small enough to fit on a keychain and can cost less than a night on the town. So even if you’re not the one driving, you could step in to save someone from making a life-changing mistake.

So let’s have a look at some of the best on the market and find the one that perfectly fits your needs and budget…

Top 6 Best Breathalyzers – Our top 6 picks of 2021 Reviews

1 JASTEK EK-912 Breathalyzer Best Breathalyzer for Regular Use

The JASTEK EK-912 prides itself on having the latest grade fuel sensor, promising to be one of the most accurate and consistent personal use breathalyzers on the market. With FDA approval, this mid-range breath tester is a great choice for anyone needing reliable and regular use.

While simple to operate, it’s also very flexible in how it shows results. It can display the six most commonly used measurement units and show up to the last 123 recorded readings. That should give you a detailed history of your drinking habits!

A must-have motor accessory?

Whilst not exactly ideal as a pocket item, this is more of an in-car item. It will neatly tuck away discreetly in any car glove box, and also comes with a sturdy storage bag to keep it together with the cable, manual, and extra mouthpieces.

With USB and micro USB charging options, and a three hour full charge time, you can charge it in-car or even via a portable power bank. And with a decent battery life and low voltage indicator, you should always be able to keep it topped up with enough charge to perform the task when called on.

Don’t be alarmed!

Our favorite feature of this life-saving gadget is the alarm settings. You can set your own target range based on the legal limits in your area. If you blow a result outside of this detection range, the tester screen will flash a warning and sound the alarm, making sure you know not to drive at this time.

JASTEK EK-912 Breathalyzer

Our rating:4.2 out of 5 stars (4.2 / 5)


  • Very simple to use.
  • USB and micro USB charging.
  • Fast three hour charge time.


  • Not the most compact.
  • A little heavy at 190g.

2 BACtrack Mobile Smartphone Breathalyzer Best Breathalyzer App

BACtrack Mobile is a major player in the affordable, personal breathalyzer market, and they’ve won multiple awards for their alcohol testing gadgets. Their breath testers claim to be on par with the latest police testing technology.

Wow, there really is an app for that!

They say there’s an app for everything these days, and the BACtrack Mobile Smartphone Breathalyzer is built around its accompanying app. Connected to the breathalyzer via Bluetooth, the app instantly displays and records all your results directly to your phone.

The app can be downloaded on all modern smartphones, including iPhone, Samsung, and Google phones, and can be set up in seconds. Once installed, the app will keep a detailed history of every result you blow and can be used to monitor your alcohol intake over longer periods of time.

What makes it so smart?

The feature we love the most about this breathalyzer and app is its recovery indicator. The app not only tells you when you’re over the limit, but it can give you a time estimate on how long until your blood alcohol level is back to zero.

Not only that, but the BACtrack breathalyzer app can even be linked directly to your Uber account, helping you book a ride home when you aren’t safe to drive, very handy!

BACtrack Mobile Smartphone Breathalyzer

Our rating:4.5 out of 5 stars (4.5 / 5)


  • Android and iOS app.
  • Estimates alcohol recovery time.
  • Light and pocket-sized.


  • Must be connected to the app to work.
  • Not the cheapest on the market.

3 VicTsing VTIN Rechargeable Breathalyzer Best Budget Breathalyzer

Next in our reviews of the Best Breathalyzers, are you looking at the more budget-friendly end of the market? If so, the VicTsing VTIN Rechargeable Breathalyzer promises to give you the same accuracy and reliability as a mid-range tester for a fraction of the price.

Small enough to rest in the palm of your hand, this low-cost breathalyzer brags an easy-to-read LCD screen. With clear and large text, you should be able to see results day and night. These results can be displayed in all six commonly used measurements.

But is it less blow for your buck?

While you shouldn’t expect the same flashy features or slick design of some of the best premium breathalyzers, it still ticks the boxes. It’s fast and easy to use, gives clear results you can understand, and can even show your last 32 readings.

Probably more popular with occasional users, it has a rechargeable 1000mAh lithium battery and a standby time of one year. Along with a smart shutdown feature, it can be used over 600 times on a single charge! So it will safely sit in that drawer or car glove box for when you need it.

This device also has built-in security to prevent overvoltage, overcharge, and large temperature changes (from -20c to 80c), meaning it shouldn’t malfunction should you leave it in the car during the winter or plug it into the wrong socket.

Keep it simple, stupid!

What we find most impressive about this budget breathalyzer is its simplicity. With a one-button operation system and easy-to-read display, it should be very simple to operate and understand, even during those more intoxicated moments.

VicTsing VTIN Rechargeable Breathalyzer

Our rating:4.6 out of 5 stars (4.6 / 5)


  • Pocket-sized.
  • Very easy to use.
  • One year battery life.


  • No alarm system.
  • Limited results history.

4 BACtrack S80 Breathalyzer Most Accurate Breathalyzer

Another entry from the popular BACtrack team, the S80 is one of the company’s flagship alcohol testers. Winning accolades from numerous institutes and industry publications, this is a breathalyzer that promises highly accurate and reliable results.

The recognition of this blood alcohol tester actually goes far beyond that… This grade-a gadget has been fully FDA cleared, and DOT approved in all 50 US states. And a lot is happening inside this little life-saving gadget! Its advanced technology includes continuous temperature checking and an internal pump breath capture system, used to achieve its precise readings.

But does high tech mean highly complicated?…

Not at all! Despite its inner tech and ability to meet the rigorous standards of law enforcement and expert alcohol screening, this device is still super simple to operate. With an easy, one-touch function, all you do is press and blow!

The machine gives a clear 10-second countdown, of which you must continuously blow for five seconds, and that’s it. You can then read your results on the clear LCD screen with total peace of mind.

Do I really need to splash this much cash?

For those who drive for a living or operate heavy machinery, it makes a lot of sense to put accuracy and reliability above saving a little money in the short term.

When you consider the above and take into account the S80 delivers professionally recognized results at a fraction of the cost of the professional breathalyzers; it’s a no-brainer. If it helps to save your job or even save a life, it’s surely priceless.

BACtrack S80 Breathalyzer

Our rating:4.5 out of 5 stars (4.5 / 5)


  • Easy to use.
  • Highly accurate results.
  • Reliable for regular use.


  • Not quite pocket-sized.
  • The high end of the budget scale.

5 BACtrack Keychain Breathalyzer Best Mini Breathalyzer

Yet another BACtrack breathalyzer to make the shortlist (we told you these guys were good!). This one is not only their most portable and budget-friendly, but it’s also their best seller!

The BACtrack Keychain Breathalyzer is exactly what you’d expect. It’s a light and compact alcohol tester that fits nicely on any keychain. Not only is it uber-small, but it’s also uber-simple to use, with a single button operation, delivering clear and simple results in seconds.

Perhaps the most important thing!

But it’s all well and good having a budget breathalyzer that comfortably fits in a purse or pocket, but does it still give accurate and reliable results?

You can bet it does. With the BACtrack name, you know you’ll get the results you can trust, and this gadget is no exception. It has a small fold-out mouthpiece, which makes sure only your breath is tested, and Proprietary Advanced MicroCheck Sensor technology which guarantees fast and reliable results.

Beautiful or beastly?

Perhaps the most notable feature of this best mini breath alcohol tester is that it comes in five different color designs. To be honest, we weren’t that sold on the color choices available, which include a rather garish green, bedazzling blue, and bright pink, but each to their own!

For some people, these vivid colors may be a fun alternative, and there is still a standard black option for those feeling less adventurous.

BACtrack Keychain Breathalyzer

Our rating:4 out of 5 stars (4 / 5)


  • Fits on a keychain.
  • Extremely affordable.
  • Comes in five color designs.


  • Not advised for professional use.

6 iSOBER 70 Premium Breathalyzer Best Looking Breathalyzer

Another high-end model, the iSober 70 Premium, is made by SENTECH, a well-known name on the market. With over 22-years of experience manufacturing professional breathalyzers, you know that their personal use alcohol testers are held to the highest standards.

With a simple one-touch operation and an uber clear OLED screen with large text, it’s another easy-to-use device. This reliable breathalyzer can quickly display and record BAC readings up to three decimal places.

How do you know whether to trust it?

SENTECH pride themselves on their rigorous testing, and the iSober 70 premium is no exception. This device has been put to the test in exhaustive circumstances. Using different temperatures and breath flow rates, it passed all conditions in over 160 blows within lab testing conditions.

Moreover, SENTECH stands by its technology. Their quality assurance program gives buyers a full 12-months of warranty and access to their 24/7/365 technical support. So you can rest assured that this is built for long use.

Beauty in the eye of the beer-holder…

While we were very impressed by the quality of this alcohol breath tester, we also found it to be the best looking of the bunch. Its very sleek and discreet design could easily pass it as being a modern smartphone at first glance.

Easy on the eye and small enough to slip into your purse or pocket, this shouldn’t stand out for any of the wrong reasons.

iSOBER 70 Premium Breathalyzer

Our rating:4.8 out of 5 stars (4.8 / 5)


  • Sleek design.
  • Accurate and reliable.
  • Easy to use.


  • The upper end of the budget.

Best Breathalyzers Buyers Guide

Best Breathalyzers Review

Even if you rarely drive and only drink on occasions, there’s still a good argument for owning a personal breathalyzer. Today’s breathalyzers are incredibly small, accurate, and reliable, and more affordable than ever before.

You never know when you may have that extra glass of wine after work and need to drive home. Whereas some people can still be intoxicated and above the legal limit, the morning after a night at the bar. You may be able to convince yourself, or even your friends, that it’s OK to drive this one time, but you can’t fool a breathalyzer.

Having an alcohol breath tester to tell you when you’re safe to go, really can save your life.

So how do you decide which device is the best one for you?

Ultimately it comes down to budget, the regularity of use, and how you will use it.

The most important requirement for any breathalyzer has to be accuracy. All of the breathalyzers we reviewed were picked because of their accuracy and reliability.

However, if you’re someone who often drives after drinking a little alcohol with dinner, or a quick beer after work, then we would suggest investing in one of the more professional models, such as the BACtrack S80 Breathalyzer or the iSOBER 70 Premium Breathalyze. These breathalyzers meet professional standards and are built to be used as often as needed.

For less regular users…

If you are someone who rarely drives after drinking, or you just want to dip your toe in the market, then the BACtrack Keychain Breathalyzer could be perfect.

Not only is it very budget-friendly, but it’s also literally built to sit discreetly on your keychain, easily accessible when the time comes. It still meets the standards of an accurate modern breathalyzer and can easily be stored on your house or car keys, ready when needed.

And there’s more…

Another reason you may require a personal breathalyzer is for improving your health and diet. Monitoring your alcohol intake is an excellent way to build a healthier lifestyle, and if this is one of your top targets, we’d suggest going with the BACtrack Mobile Smartphone Breathalyzer.

Not only does this breathalyzer give you a detailed record of every alcohol test you take, but it also keeps the information on your phone. This gives you a detailed record that is easily available any time you have a health screening or consultation with a doctor.

Looking for more superb products for a safer ride?

Then check out our in-depth reviews of the Best Car Fire Extinguishers, the Best Headlight Restoration Kit, the Best Car Alarm Systems, the Best Police Scanners, and the Best Remote Start System you can buy in 2021.

Or how about the Best Car Waxes, the Best Car Air Fresheners, the Best HUD For Car, the Best Bluetooth Car Kits, or the Best Portable Garage currently on the market.

So, what are the Best Breathalyzers that you can buy?

Ultimately, we were most impressed by the…

BACtrack Mobile Smartphone Breathalyzer

Not only does it come with smartphone connection, the ability to log all your results over long periods of time, and even give recovery estimates, but it’s also one of the lightest and smallest available.

Being a BACtrack product, this also gives us the confidence that it will be an extremely accurate and reliable product. And we love the idea of being able to not only check your most recent results but be able to monitor your results history over a longer period, and potentially lead to a healthier and safer lifestyle.

Happy, safe motoring.


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