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BACtrack C6 Smartphone Keychain Breathalyzer

The BACtrack C6 Smartphone Keychain Breathalyzer is an ultra-portable, keychain-sized device that offers quick results and smartphone connectivity for convenient monitoring.

BACtrack C6 Smartphone Keychain Breathalyzer – buy now
4.3(870 reviews)
$69 - $79

via Amazon.com

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Pros
  • +Smaller than a pack of gum and conveniently designed as a keychain for constant carry
  • +Warms up in just about five seconds, providing quick results
  • +Can connect to a smartphone to store readings and estimate ZeroLine (time to 0.00% BAC)
Cons
  • Not quite as accurate as the more expensive professional-grade devices
  • Relies on a smartphone for advanced features like data logging
  • The difference in accuracy, while marginal, may be noticeable in critical situations
See how this compares to similar productsFull Comparison →

The BACtrack C6 Smartphone Keychain Breathalyzer redefines portability in the breathalyzer market. This device is remarkably small, being smaller than a pack of gum, and its integrated keychain design ensures it is always within reach. This constant availability is its greatest strength, allowing users to check their BAC whenever and wherever they need to, whether at a dinner party, a social gathering, or after a night out. The convenience does not come at the expense of speed; the C6 warms up in approximately five seconds, making it one of the fastest devices to get a reading from. While it uses a semiconductor sensor rather than a more expensive fuel cell, its accuracy is surprisingly good, with the difference from professional models being marginal and unlikely to affect practical decision-making. A key feature is its ability to connect to a smartphone via Bluetooth. This allows the device to automatically log all breathalyzer readings, creating a personal record of alcohol consumption over time. The accompanying app also provides a ZeroLine estimate, which tells the user how long it will likely take for their BAC to return to 0.00%. This feature is incredibly useful for planning and responsible decision-making. The C6 can also function as a standalone device, displaying the BAC reading on its built-in screen, so a smartphone is not mandatory for basic use. Its low price point makes it an excellent value and a strong budget-friendly option. The BACtrack C6 is the perfect choice for those who prioritize portability and convenience above all else, offering a reliable and always-accessible tool for personal safety.

Last updated:

James CarterSenior Tech Reviewer

James has reviewed consumer electronics and gadgets for over 6 years. He specializes in audio equipment, cameras, and smart home devices.

BACtrack C6 Smartphone Keychain Breathalyzer – FAQs

Yes, for most buyers. The BACtrack C6 Smartphone Keychain Breathalyzer stands out for: Smaller than a pack of gum and conveniently designed as a keychain for constant carry and Warms up in just about five seconds, providing quick results. The main trade-offs are Not quite as accurate as the more expensive professional-grade devices. Check our full Electronics and Gadgets comparison for alternatives.