Your lifestyle is fitness. And your equipment needs to go the distance. The new Precision™ Series Ellipticals are commercial models for your home with the design and features favored by fitness center exercisers and owners. New technology uses your preferences and exercise data to deliver a personalized workout experience that promotes better results and saves you time. The Precision Series is club-proven reliability in an Elliptical personalized for your home.
Millions of exercisers love the smooth and fluid feel of Precor ellipticals. The stationary handlebars on the EFX® 423 puts the focus on the large muscles in your legs and glutes. The 423 provides a natural, low-impact workout that helps you get results. With 10 preset workouts, SmartRate® target heart zone monitoring and 20 levels of resistance, you’ll have lots of options for personalization and tools to track your workouts.
With Precor patented adjustable CrossRamp® technology, you can alter the height of the elliptical path your foot travels. Called Variable Stride Geometry™, this allows you to focus on a specific muscle group or all major lower-body muscle groups, so you can work the muscles you want, when you want.
CrossRamp® Elevation Range
CrossRamp® Number of Levels
1 - 20
Precision extruded, anodized aluminum
Fixed, for lower-body focus
Reversible Pedal Rotation
Pedal Locking Pin
Oversize water bottle holder, 2 remote control/phone holders, magazine holder.
Electromagnetic Eddy Current Resistance
10 watts (Level 1 at 20 RPM or 40 strides/minute)
625 watts (Level 20 at 100 RPM or 200 strides/minute)
High contrast blue-white LCD. Acrylic overlay.
CrossRamp and Resistance Changes
Tap style Dome Keys
Personalized Suggested Workout
User IDs allow you to quickly retrieve the most recent workout and also lets you select the default workout duration and provides the most accurate calories and target heart rate calculations. A great option for households with more than one user, so you each can store your preferences.
Number of User IDs
Custom Workouts per User ID
Yes, DURING your workout, "Workouts" key lets you change your workout type and "Enter" lets you change your duration, age and weight.
Metric or U.S. Standard
1-1 Interval 1-2 Interval Weight Loss Basic HRC Aerobic Hill Climb Cross Country Gluteal Cross Trainer Manual
Number of Preset Workouts
Aerobic, Hill Climb, Cross Country, Gluteal, Cross Trainer
Workout Feedback Metrics
Time Elapsed, Time Remaining, Calories, Calories/Min, Heart Rate, Target Heart Rate, SmartRate® Zone Distance, Strides/Min, Average Strides/Min Resistance, CrossRamp® % Complete
Number of Metrics Available During Workout
Workout Summary Metrics
Time Elapsed, Total Calories, Total Distance, Average Strides/Min
Number of Workout Summary Metrics
Yes with SmartGrip™ holder
Software Upgrade Capable
Default workout time, Max workout time, Max pause time, max cool down time, Configuration (model), Max CrossRamp
Works with any Polar® compatible 5 KHz chest strap transmitter
Chest Strap Transmitter Included
Displays when the exerciser's heart rate is in the fat burn, cardio, or peak target zone*
*The heart rate and SmartRate® features are in intended for reference only. They may not be accurate for every user or at every intensity and are not intended for use as a medical device. Please read your owner's manual and visit www.precor.com/en-us/customer-service/faq