Given below are some factors you should keep; in mind while buying a shower head, 1. Water pressure – The water pressure is measured in gallons per minute and it is usually printed along with the product. You can opt for a lower GPM if you want to save more water. 2. Coverage area – Coverage area tends to be a personal preference. If you like shower heads with a big coverage area , you should go for rain shower heads. 3. Fixed or handheld – Shower heads come in two types, fixed and handheld. The fixed version stays fixed to the wall whereas the handheld version is flexible and can be moved. 4. Spray pattern – Shower heads have different spray patterns like rain, mist, pulse and jet.