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Guests use a sample phone at the launch of the HTC One smartphone in London February 19, 2013REUTERS/Toby Melville

Taiwanese smartphone maker HTC unveiled its much rumoured Butterfly S official on Wednesday.

Technology website Engadget reported that the phone was announced at its Taiwan launch event. Taking several features from HTC's hot selling HTC One, Butterfly S comes with a 5-inch 1080p display and is powered by a quad-core Snapdragon 600 processor clocked at 1.9GHz. It packs 2GB RAM and 16GB of internal storage along with a massive a 3,200 mAh battery. The HTC Butterfly successor also comes equipped with a 4-megapixel UltraPixel camera and the Zoe camera software feature. On the front, it packs a 2.1-megapixel camera.

The smartphone runs on Android 4.2 Jelly Bean operating system with the latest Sense UI 5.The device which measures 144.5 x 70.5 x 10.6mm and weighs 160 grams, which is thicker in measurement than previous handsets. In terms of connectivity, the device supports Bluetooth 4.0, Wi-Fi, DLNA, NFC and GPS. The smartphone is priced NT $22,900 in Taiwan and is expected to launch in July. There are no details about the launch in other countries and the pricing.

"Not much has changed in terms of visuals, and the Butterfly S looks more or less the same as its predecessor, safe for its thickness and different color variations - red, white, gray - and some details here and there. The most prominent of which is the metal ring surrounding the camera glass at the back," GSM Arena noted.