Garmin GPS Forerunner 405 ANT


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Long runs, tempo runs, speed drills. You expect a lot from your body‚Ķand from your training gear. Meet the Garmin Forerunner 405 ANT. This GPS-enabled sport watch tracks your training, then wirelessly sends your data to your computer. The ultimate in training technology, its sleek design features a touch bezel that lets you quickly scroll and select features on the run. Loaded with serious training features, Forerunner 405 continuously monitors your time, distance, pace, calories and heart rate (when paired with heart rate monitor). Each run is stored in memory so you can review and analyze the data to see how you've improved. You can even download recorded courses to compete against previous workouts or race a Virtual Partner®. Customize Forerunner's data screens for instant feedback while you train. Once you've logged the miles, innovative ANT+™ wireless technology automatically transfers data to your computer when the 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 or our optional Garmin Training Center® software. You can wirelessly send workouts from your computer to Forerunner, too.


  • Heart rate monitor: yes (some versions)
  • Bike speed/cadence sensor: yes (optional)
  • Foot pod: yes (optional)
  • Automatic sync (automatically transfers data to your computer): yes
  • Garmin Connect™ compatible (online community where you analyze, categorize and share data): yes
  • Garmin Training Center® software compatible: yes
  • Virtual Partner® (train against a digital person): yes
  • Courses (compete against previous workouts): yes
  • Auto Pause® (pauses and resumes timer based on speed): yes
  • Auto Lap® (automatically starts a new lap): yes
  • Auto Scroll (cycles through data pages during workout): yes
  • Advanced workouts (create custom, goal-oriented workouts): yes
  • Simple workouts (input time, distance and calorie goals): yes
  • Pace alert (triggers alarm if you vary from preset pace): yes (for advanced workouts only)
  • Time/distance alert (triggers alarm when you reach goal): yes (for advanced workouts only) Interval training (set up exercise and rest intervals): yes
  • Customizable screen(s): yes
  • Unit-to-unit transfer (shares data wirelessly with similar units): yes
  • Additional: Watch functions include dual time, date and alarm
  • Garmin Connect and Garmin Training Center are compatible with Windows® 2000 or later and Intel-based Mac running OS 10.4.11 or later with Safari
  • Lap history: 1000 laps
  • Waypoints/favorites/locations: 100
  • Routes: 0
  • Battery: rechargeable lithium-ion
  • Battery life: 2 weeks in power save mode; 8 hours in training mode
  • Water resistant: yes (IPX7)
  • GPS-enabled: yes
  • High-sensitivity receiver: yes
  • RoHS version available: yes
  • Display size, WxH: 1.06" (2.7 cm) diameter
  • Display resolution, WxH: 124 x 95 pixels
  • Unit dimensions, WxHxD: 1.88" x 2.78" x 0.646" (4.8 x 7.1 x 1.6 cm)
  • Weight: 2.11 oz (60 g)

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Review Summary

5 out of 5

1 Reviews

1 Ratings & Reviews

very useful as a training tool
July 13, 2009

I purchased the Garmin 405 to help me train for an upcoming marathon. I found it very useful in tracking my mileage since I run mainly on rural roads. The watch alllowed me the freedom to run any route I desired without having to clock my mileage beforehand. As a first time marathoner, I also relied on the pacing mode of this watch quite a bit. Since I mostly run by myself, I found that I became quite dependant on this feature. I also set the watch to clock intervals which made the run fun and interesting! I know that this watch does so much more and I plan on learning how to access its many features in the future. Garmin customer service is also very helpful if you have questions about operation of the watch. The one thing to be careful about with this watch is make sure that it is sufficiently charged before long runs. Also, before big events (such as a marathon) be sure to leave the watch plugged into the charger the night before. I charged my watch the day before the race then set it next to my race shorts, top etc. the night before. Without knowing it, the bezel was touching my race top, which activated the watch and drained the battery. I had only 14% battery life and not enough time to charge the watch again before the race. Live and learn! I look forward to many more miles with my Garmin.

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