Westpac NZ is trialling its Cash Tank mobile application on Google Glass and preparing to introduce Apple's iBeacon technology within branches in its bid to make services available on all new platforms.

The bank expects Cash Tank to be fully functional when Glass is expected to be available in NZ later this year. It will provide access to users' account balance without the need to log in.

"By the end of this year our customers will be able to walk into a shop wearing their Google Glasses, see something they like and instantly check their bank balance which will be displayed in their peripheral vision," Westpac NZ chief digital officer, Simon Pomeroy, said.

He also said the bank intends to extend the app's functionality to offer customers transfers between bank accounts, the ability to receive account alerts, and also find the nearest ATM or Westpac branch.

iBeacon, which allows customers to receive information and incentives on a device when passing a location using the technology, will enable Westpac to "add another dimension to customer service."

While Pomeroy did not specify what this will entail, he said Westpac NZ expects to trial the function in selected branches by the end of February.