Qmobile is in full speed these days, launching a new quad core phone every day. This time its Qmobile Noir A900. All these quad core phones launched have the same processor and memory with minor differences in screen size, screen technology and GPU , I believe the camera is exactly the same as well. in all these models.
Also all the Qmobile phones are rebranded version of fly-phones (Russian company). The price difference is not that much as well which confuses the potential customer a lot. In a way its good that they are providing a lot of variety to choose from, they should also focus on quality and customer support. Remember the Noir A20 we bought. I am still waiting for its replacement. 9 days gone. Anyways.
Let look at Qmobile Noir A900 specs.
Operating system: Android 4.2
Processor: MTK6589, 1.2GHz, Quad core
Battery: 1800 mAh, Li-Ion
Resolution: HD 720×1280 pixels
Capacitive touch screen
ROM 4 Gb
RAM 1 Gb
Resolution: 8.0 mpx (3264х2448 pix), autofocus
Video recording: 1920х1080 pix (Full HD)
From camera: 2 Mp
So Noir A900 is almost as same as Noir A20. The only difference between Noir A900 and Noir A20 is the display size and screen resolution. A900 has 4.7 inch display with 720p resolution and A20 is 4.5 inch with 540p resolution. There is a slight difference in battery size as well . A20 has 1900 mAh and A900 has 1800 mAh. The difference is not that much so you can just ignore that.
So if you have to choose between Noir A900 and Noir A20 I would advise you to go for Noir A900. Lets take a look at the pictures of Qmobile Noir A900.