Young people around the world love their mobile phones, but they use them in vastly different ways.

Twenty percent of the Vietnamese population is between the ages of 15 and 24, and half of these young people already use mobile services. Like their counterparts in other countries, young people in Vietnam use more data than average.

According to October 2010 data from The Nielsen Company, 29.7 percent of U.S. mobile subscribers now own smartphones, cellphones with full operating systems.

American teens are sending or receiving an average 3,339 texts a month — more than six per every hour they’re awake. Meanwhile, data and app use among teenagers is rising faster than ever.

Widespread ownership of mobiles is only a fairly recent development in China, but consumers there have fully embraced the technology and in some ways are using it more robustly than their American and European counterparts.

The number of people in the UK using smartphones increased 10 percent between the second and third quarters of this year, from 5.6 million to 6.2 million.

The typical U.S. mobile subscriber sends and receives more SMS text messages than telephone calls, according to research released Monday by Nielsen Mobile. 
During the second quarter of 2008, a typical U.S. mobile subscriber placed or received 204 phone calls each month.  In comparison, the average mobile customer sent or received 357 text messages per month — a 450% increase over the number of text messages circulated monthly during the same period in 2006.

On Monday, Nielsen Mobile released first quarter 2008 smartphone statistics for the U.S.  Among the findings:
 
Smartphone users are predominantly male (59%) and most are between the ages of 25 and 34 (29%) or 35 and 44 (24.5%). 
A third of smartphone users (35.1%) have an annual household income of more than $100,000. 
More than half (52%) keep their phones for personal use, while another 23% say their company foots the bill.
View the Full Nielsen Media Alert: 6-30-08-smartphone-blast.