Garmin Forerunner 405CX GPS Sport Watch with Heart Rate Monitor

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Just Beat It

Your heart rate must go on.

Use this: in the heart of the moment, telling me what my heat meant. Wait, did we mix that up?

Don't use this: for running. USE IT FORERUNNING! JEEZ! CAN'T YOU PEOPLE READ?!

This just posted on Facebook: "I always say, 'I can see into yr heart,' and people are all, 'thaz cheezy!' n I'm like, 'no seriously.' :D"

Left to its own devices, this: would alternate between whispering sweet nothings to and yelling obscenities at your heart rate to make its graph as interesting as possible.

The experts say: if a heart beats in a body, and no one monitors, then there is no proof that it's beating at all.

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The Forerunner 405CX is the evolution of GPS-enabled training. This sleek sport watch tracks your distance, pace and heart rate, then wirelessly sends the data to your PC for later analysis. The 405CX features heart rate-based calorie computation and comes with a second wrist band option suitable for smaller wrists.Your workout will never be the same with the Garmin Forerunner® GPS Sports Watch. Certified refurbished by Garmin; warranty is same as new model.

  • Heart rate monitor
  • Automatic sync to transfer data to your computer
  • Garmin Connect compatible
  • Virtual Partner - train against a digital person
  • Courses - compete against previous activities
  • Auto Pause - pause and resume timer based on speed
  • Auto Lap - automatically starts a new lap
  • Auto Scroll - cycles through data pages during workout
  • Advanced workouts - create custom, goal-oriented workouts
  • Pace alerts - triggers alarm if you vary from preset pace
  • Time/distance alert - triggers alarm when you reach goal
  • Interval training - setup exercise and rest intervals
  • Heart rate-bases calorie computation
  • Customizable screen
  • Unit-to-unit transfer - shares data wirelessly with similar units
  • Shock resistant
  • Sport watch functions include dual time, date and alarm
Watch Results
  • Continuously records your time, distance, pace, calories burned and heart rate
  • Each workout is stored in memory so you can review and analyze the data to see how you've improved
  • And advanced training features will challenge you to step up your pace — race against Forerunner's Virtual Partner® to improve your times, or set up interval workouts without having to circle the track
  • You even can download recorded courses to compete against previous workouts
  • To use the watch, simply tap the touch bezel to change screens without fumbling for a button

Track Heart Rate

  • Flexible, wireless heart rate monitor to help you make the most of your training
  • Continuously tracks heart beats per minute and uses your heart rate for advanced calorie computation, so you know how many calories you're burning
  • Train in a certain heart rate zone to improve your fitness level or compare your pace and heart rate to past performance on the same run

Share Workouts Wirelessly

  • You can share your locations, advanced workouts and courses wirelessly with other Forerunner 405 users
  • Send your favorite workout to your friends to try, or compete against someone else's recorded course
  • Sharing data is easy: just select "transfer" to send your information to a nearby device

Run, Sync, Store and Share

  • Innovative ANT+™ wireless technology automatically transfers data to your computer when Forerunner is in range
  • No cables, no hookups, the data’s just there, ready for you to analyze, categorize and share through our online community, Garmin Connect™
  • You even can plan workouts on your computer and then send them to your Forerunner

Train Year Round

  • Take your training inside
  • Pair with an optional foot pod to track your speed, distance and running cadence indoors when GPS signals are unavailable
  • The wireless foot pod clips onto your laces for easy removal and automatically turns on when you start moving
  • Or pair your Forerunner with an optional speed/cadence bike sensor to track the speed and distance of your cycling workouts
Shipping Note: Eligible for shipping to all 50 states

Warranty: 1 Year Garmin (Same Warranty as New)


Dimensions 1.88" x 2.78" x 0.646"
Display size 1.06" (2.7 cm) diameter
Display resolution 124 x 95 pixels
Weight 2.11 oz (60 g)
Battery Rechargeable lithium-ion
Battery life 2 weeks in power save mode; 8 hours in training mode
Water resistant IPX7


In the box:

(1) Garmin Forerunner 405CX GPS Sports Watch includes:

  • USB ANT Stick™
  • Heart Rate Monitor
  • (2) Additional Wrist Straps
  • AC Charger
  • Charging Clip
  • Manuals



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Garmin Forerunner 405CX GPS Sports Watch
$99.99 Sold Out Sporting Goods
$99.99 USD false 1 Retail EA
1 3
Woot! Sport.Woot
4121 International Pkwy Carollton TX 75007 U.S.A.