Samsung Pay is now available to subscribers of leading US operator Verizon Wireless, improving its chances of being successful in the US.

The US operator announced earlier this month that it would support Samsung Pay, which debuted on 28 September, without specifying when this might happen.

Pushing a payment service in the US without the support of Verizon was always going to be a big ask for Samsung, even with the backing of its three nearest rivals – AT&T, T-Mobile US and Sprint, so this is a boost for its recently launched service.

A software update by the operator adds Samsung Pay to the Galaxy S6, S6 Edge, S6 Edge+ and Galaxy Note 5 devices among its base.

The reason for the delay was not publicly stated by Verizon, which said in August it was evaluating the vendor’s payment service and would update users when it had more news.

Verizon (along with AT&T and T-Mobile US) were backers of the now-defunct Isis (later Softcard), which was absorbed by Google. As part of the same deal, the three operators agreed to support Google’s Android Pay, a rival to Samsung Pay.