Incline Percentage- The highest that most high dollar treadmills will go is about 15%, but most people will only use between 2 and 4%. Good solid incline is not for everybody as some people have shins and calves that are not ready for the strain that they will be given as a result.
Incline Adjustment- Most lower cost treadmills will have a manual incline that moves as the exerciser decides to press the button to increase or decrease the level. Higher dollar models will change with the runner’s heart rate or go on a workout plan that adjusts constantly throughout the workout.
Running Surface- This is not to say anything about your size, but what is the size of the running surface? Sometimes it is not physical size but the way a person strides instead. If a person runs with a wider stride then he or she needs a wider track to run on, if not, then the running surface is inconsequential.
Motor- The AC powered motors will be noisier and are generally in the more commercial and business treadmills. Most home treadmills use a DC powered motor, both seem to work quite well and aren’t necessarily harmful either way.
Running Belt- Running belts are the hardest working part of the treadmill and are constantly being stressed during the workout process. If it isn’t a price concern that is delaying your purchase then you should consider the best running belt on the market. This will save you a lot of money through the durability of the machine alone!
Speed- Depending on how you like to work out you can basically get a treadmill that is built for your style. Walking is much easier to find as every treadmill has slower paced walks, but the jogging may require a more heavy duty and speed increased version.
Dashboard- Treadmills that have a basic reading of distance, time, and speed aren’t too expensive and should be purchased if at all possible. The convenience and ease of this feature is simply too good to pass up.