A lot of has been said about OIS from Nokia on the Lumia 920 and also the F2.0 Lens compared to the new F2.4 Saphire Lens on the iPhone. Honestly, based on how light works, how camera’s work it can be worked out what will happen.
We also have to remember that both phones are using the latest generation of BSI sensors, we know that Lumia uses 1.4 micron pixels on the sensor, the iPhone 5 is 25% smaller. Now we don’t know if that is a newer way of packaging the optics and sensor or do we have smaller pixels on the sensor. If we have smaller pixels on the sensor (25% less) they would be 1.05 microns only. This has to have a negative impact on light hitting the sensor if both sensors are the latest generation BSI.
But what does it mean? See the image below, with NO OIS you would hope to keep the phone steady for 1/15 of a second

Same light different results
- Shot 1: 2.5 F Number with NO OIS. iPhone simulation.
- The Shutter speed has be kept FAST to avoid blurring from shake. No OIS.
- The Amount of light hitting the sensor is less due to the F number blocking light
- Shot 2: 2.0 F Number with NO OIS. Lumia simulation.
- The Shutter speed has be kept FAST to avoid blurring from shake. No OIS.
- The Amount of light hitting the sensor is better due to the F2.0
- Better background blur due to the F2.0
- Shot 3: 2.0 F Number with OIS. Lumia 920 OIS simulation.
- The Shutter speed is slower as OIS handles the shake.
- The Amount of light hitting the sensor is better due to the F2.0
- Better background blur due to the F2.0
- Better shot results as we can keep the shutter open longer and get more light.
Compare the shots, we can see the real colour, not just dull dark objects.
You could say, iPhone has better software but does it? All the shots have been processed using Auto conditions in Photoshop so yes, they have been processed to lift the image quality.
No matter software, in Photography hardware matters!