(Pocket-lint) - As gaming phones go, the Asus ROG 2 is one of the best out there. And now there are two special editions: the Asus ROG Phone 2 Ultimate Edition and Strix Edition.

The ROG Phone 2 already has a formidable specification. With a 6.59-inch AMOLED display that sports a 120Hz refresh rate - that's double the usual rate of most phones - this screen-focused experience is designed for longevity, thanks to a 6,000mAh battery.

While the original ROG Phone 2 came with the Qualcomm Snapdragon 855 processor, the Ultimate and Strix editions up that to the Snapdragon 855 Plus processor, adding a little extra grunt behind the scenes. The Ultimate Edition comes with 12GB RAM and 1TB storage, while the Strix features 8GB RAM and 128GB storage.

In addition there's a the modular ROG Kunai Gamepad, which provides physical console-like buttons. It consists of three components - the ROG Kunai Bumper, ROG Kunai Controllers and ROG Kunai Holder - which transforms these new phones into true gaming devices.

The Ultimate Edition will retail for £999, while the Strix model can be picked up for £699. The phone doesn't retail in many places in the UK, so you're best to check out the official Asus store for more information regarding availability.

Writing by Mike Lowe.