StairMaster SM3 Step Mill

StairMaster SM3 Step Mill

We test and review fitness products based on an independent, multi-point methodology. If you use our links to purchase something, we may earn a commission. Read our disclosures.


  • StairMaster SM3 Step Mill is a compact version of commercial steppers
  • Speeds range from 26–162 steps per minute
  • Includes 10 preprogrammed workouts including fat burner, calorie burner, and intervals
  • Large backlit LCD display 
  • Easy-to-use console with basic buttons/options
  • 20 levels of resistance
Manufacturer: Category:

Pros & Cons

What we like ...
  • Assembly is simple
  • Preset programs
  • Compact
  • Polar-compatible heart rate monitor
What needs improvement ...
  • May be noisy
  • Quality assurance is questionable
  • Reports of it breaking down quickly
  • Relatively expensive

Product Summary

Designed to bring the quality of a commercial stepper into your home, the StairMaster SM3 Step Mill is a compact step machine equipped with 10 pre-set workout programs: manual, steady, mystery challenge, build, bell shaped, calorie burner, fat burner, heart rate zone trainer, and heart rate intervals. The backlit LCD monitor tracks time, watts, calories, heart rate, level, floor/minute, segment time, floors climbed, and workout profile. Compatible with polar heart rate monitors, users can also opt to measure their heart rate using the pulse grips located on the handrails.

Other notable features include an automatic safety stop sensor, 275-pound weight capacity, and a powder-coated steel frame. This step machine falls on the expensive side and, although it is compact compared to those found in health clubs, it still takes up a good amount of floor real estate. There are very mixed reviews for the StairMaster SM3 Step Mill. Some users rave over its ease-of-use, simple, albeit time-consuming, assembly, and performance. Others, on the other hand, report it to be noisy and to break down just after a few uses.



46” L x 29” W x 73” H

Item weight

298 lbs

User weight capacity

275 lbs

Program options

Manual, steady, mystery challenge, build, bell shaped, calorie burner, fat burner, heart rate zone trainer, heart rate intervals


20 resistance levels


Frame: lifetime warranty, mechanical: 5-year warranty, electronics: 2-year warranty, labor: 1-year warranty

GGR Community Reviews

StairMaster SM3 Step Mill

Tried it? Review this product

Leave a Reply

Your email address will not be published.

Use one of the allowed file type: jpg,png,gif. The max size allowed is : 5 MB.


      If you are looking for a stepper and can afford a steep price tag, the StairMaster SM3 Step Mill may be for you.