Asus shared a new teaser for its ZenFone 4 handset and said that it will be unveiled in Taiwan on August 17. The latest teaser for the smartphone gives us a glimpse at the dual camera setup at the back of the smartphone. As per the reports by DigiTimes, Asus is planning to launch three models of the ZenFone 4 series, i.e. ZenFone 4 Pro, ZenFone 4, and ZenFone 4 Selfie Pro at the launch event.
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