The steam iron has an in built system to spray water as you keep ironing, so that obstinate wrinkles van get ironed out of your clothes. You need not separately sprinkle waters. Its mostly good for cotton clothes and jeans etc. A normal dry iron does not have that facility.
Which one you should buy depends on your usage.
I advise you to look at the steam irons. It is easier to iron with them. Look at this site https://ironsexpert.net/ Here are published a review on the model utbgov and you can pick up what you need