Singapore’s largest mobile operator Singtel followed rivals StarHub and M1 in introducing unlimited data, voice and SMS plans.

In late August StarHub and M1 – the market’s second and third largest mobile operators respectively – introduced a range of unlimited data plans targeting heavy data users.

Singtel, with a 48 per cent market share, upgraded it Combo 3, 6 and 12 mobile plans with unlimited talk time, SMS and local data for customers who add its new Data X Infinity option for SGD39.90 ($29.50) a month.

Yuen Kuan Moon, CEO of Singtel’s consumer business in Singapore, said: “We recognise that our customers want flexibility and control over their mobile plans. That’s why our Data X 2 and Data X 3 add-ons have been so well received. And now with Data X Infinity as a further option, our customers can enjoy infinite possibilities. We’re pleased to offer our customers a truly unlimited mobile experience.”

He said its nationwide 4G network supports peak download speeds of 500Mb/s, which is the fastest in the city state. 4G users accounted for 66 per cent of Singtel’s user base of nearly 4.4 million at end-June according to GSMA Intelligence.

Customers subscribing to Data X Infinity have the option to share their data with up to three family members with a MobileShare supplementary plan, which is available at SGD10.70 a month per line.