The service, called Wachovia Mobile, will be available on mobile phones and palm-top computers with internet access and will allow customers to monitor their accounts and transfer funds.
Commenting on the new service, Wachovia's chief e-commerce officer Gloria Chance said that it was important for the bank to evolve with current technological advancements.
"Launching Wachovia Mobile illustrates Wachovia's commitment to meeting the ever-changing needs of our customers," she said.
"Delivering exceptional customer service and offering innovative products to all Wachovia customers are our top priorities."
The move follows the launch of similar services by HSBC and its online banking arm First Direct for UK retail banking customers earlier this year.