The Asus ZenWatch 2 will boast a seven day battery life, according to the company's chairman Jonney Shih.
Speaking to reporters in Taiwan, the Asus boss said, "The ZenWatch is defined by us as a companion of a smartphone, and we think it still has a lot of room for improvement.
"As a companion device, 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, rather than for just two days."
Wareable verdict: Asus ZenWatch review
The Asus ZenWatch 2 looks like going head-to-head with the Samsung Gear S, with CEO Jerry Shen confirming back in December that a standalone smartwatch will arrive in Q3 2015, alongside two other new Asus wearables.
The CEO was speaking at the launch of the original ZenWatch in Taipei and, according to Focus Taiwan, the ZenWatch 2 will offer independent voice-calling and communication features much like the Gear S, which has its own SIM-card slot.
That earlier report also stated the Taiwanese tech company is working on two additional "wristband-like" devices that sound like budget fitness trackers, with the new duo purportedly being able to step count, measure bpm and record blood sugar levels.
The original ZenWatch is available now and is a lovely looking device with a unique and attractive design.
Its launch in the US was a bit of a mess with a series of misinformation being released by Asus, so we'd hope for a smoother outing for the sequel.
How we test
By Paul Lamkin
Wareable Media Group co-CEO Paul launched Wareable with James Stables in 2014, after working for a variety of the UK's biggest and best consumer tech publications including Pocket-lint, Forbes, Electric Pig, Tech Digest, What Laptop, T3 and has been a judge for the TechRadar Awards.
Prior to founding Wareable, and subsequently The Ambient, he was the senior editor of MSN Tech and has written for a range of publications.