Honestly-they are all the SAME. It doesn't matter if you pay a couple bucks for one at the dollar store, $4 for the equate generic one at Wal-Mart, or if you pay $10+ for a name brand one.
They all have the same paper inside of them that reacts to the pregnancy hormone in your urine.
Have used generic ones numerous times (dollar store, generic Wal-Mart or drugstore brand, etc.) and they have all been ACCURATE.