Asus working on a smartwatch with seven-day battery life

Asus has set out its goals for the ZenWatch 2: it wants a smartwatch that lasts for up to seven days off a single charge.

The Asus ZenWatch has only just gone on sale, but Asus chairman Jonney Shih has already voiced his dissatisfaction with the current design.

"The ZenWatch is defined by us as a companion of a smartphone, and we think it still has a lot of room for improvement," he said. He also set out bold goals for the next model, rumoured under the predictable title Zenwatch 2.

"Its central processing unit and operating system should be more simplified than the current version, so that I can use it for up to seven days on one charge," Shih said.

These are bold words, however, and not just because only the monochrome Pebble Steel gets close to seven-day stamina at present. It also suggests that Asus may drop Android Wear for its second smartwatch.