STARHUB now offers 4G data roaming on 25 mobile networks across 21 countries - the largest number of destinations so far, compared to its two competitors.

The 4G data will have the same roaming rates as the existing 3G ones. These rates range from S$15 to S$30 a day on StarHub's DataRoam Daily Unlimited plans, depending on the country in question.

While the 21 territories with 4G data roaming services already include Australia, China, Hong Kong, South Korea, Taiwan, Thailand, the United States and the United Kingdom, more destinations will soon be added to the list.