Man talk more on cell phone than woman

As you know by current stereotypes, women usually talk on the phone more than men(I can prove it on my own example, I mean my sister). But this usually causes only for phones. If we speak about cell phones we have an opposite situation.

According to the research average men uses cell phone 458 minutes a month and average women 453 minutes during the same period of time. So we can easily say that men spent more time with their cell phone than women.