Which one is better？Nubia Z9 or My Prague?

My iphone6 was broken and I have to buy a new smart phone.I found Nubia has two phones is on sale on a shopping website. But I don'n know which one is better.

One is Nubia Z9 mini.
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ZTE Nubia Z9 mini smartphone was launched in March 2015. The phone comes with a 5.00-inch touchscreen display with a resolution of 1080 pixels by 1920 pixels at a PPI of 441 pixels per inch.

The ZTE Nubia Z9 mini is powered by 1.5GHz octa-core Qualcomm Snapdragon 610 processor and it...

Which one is better？Nubia Z9 or My Prague?

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