Loaded with serious training features, Forerunner 405CX 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 can even 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
Forerunner 405CX comes with a flexible, wireless heart rate monitor to help you make the most out of your training. The digital heart rate monitor 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
With Forerunner 405CX, 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
Once you’ve logged the miles, 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 or our optional Garmin Training Center™ software. You can even plan workouts on your computer and then send them to your Forerunner.
Train Year Round
Take your training inside with the versatile Forerunner 405CX and optional wireless accessories. Pair it 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.
Physical & Performance:
Unit dimensions, WxHxD: 1.88" x 2.78" x 0.646" (4.8 x 7.1 x 1.6 cm)
Display size, WxH: 1.06" (2.7 cm) diameter
Display resolution, WxH: 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: yes (IPX7)
High-sensitivity receiver: yes
RoHS version available: yes
Maps & Memory:
Ability to add maps: no
Accepts data cards: no
Lap history: 1000 laps
Heart rate monitor: yes
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
Multi-sport (changes sport mode with a press of a button): no
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)
Vibration alert: (choose between alert tones and/or vibration alert): no
Interval training (set up exercise and rest intervals): yes
Heart rate-based calorie computation: yes
Customizable screen(s): yes
Barometric altimeter: no
Unit-to-unit transfer (shares data wirelessly with similar units): yes
Power meter compatible (displays power data from compatible 3rd party ANT+™-enabled power meters): no
Sport watch: yes
Additional: Watch functions include dual time, date and alarm.
Garmin Connect and Garmin Training Center are compatible with Windows® XP or newer and Intel-based Mac running OS 10.4 or later with Safari.
What's in the Box:
◦USB ANT stick™
◦Heart rate monitor
◦Two additional wrist straps
◦Owner's manual on disk
◦Quick reference guide