Elliptical trainers can give a complete body workout if the arms are also used. They are low impact cardio vascular workout machine and are easy on the joints of the legs and the knees. They help you to lose weight and stay in shape. In fact you burn the same number of calories as you would when you are jogging on the treadmill. For this reason, people of all age groups can use the elliptical trainers. Thus whether you are a beginner or an advanced athlete, you can easily work out on the elliptical trainer. The cheapest models come for as low as $300, but they have the most basic functions. The top of the range elliptical trainers come for $4000 and has advanced functions. These elliptical trainers are meant for gym use. If you want to see the features of various elliptical trainers, you'll find the reviews of the elliptical trainers are extensive and they also give the ratings for the various models. It's also important to try out the elliptical-trainers before you actually purchase them. By going to a physical store, you can easily try out the various elliptical trainers. In the more expensive models, some of the features included are warm up and cool down periods. This prevents the body from having cramps. Therefore when you look at look at the features and the cost of the elliptical trainers very closely, this helps to analyze which is the better elliptical trainer. It's important to buy the elliptical-trainers from a reputed company that can also provide after sales service. Look at the warranty periods to ensure that you get the best deal when you buy the elliptical trainer. Normally there is one-year warranty for the labor and three year warranty for the machine parts. Lifetime warranties are possible and recommended if you find something in your price range.