MX4's camera is much better. Those who claims otherwise must be die-hard Sony fanboys or work for Sony.

Although they are using the same sensor, MX4 has full manual settings and manual focus. This unlocks a lot of potential. You can actually use it like a DSLR's Tav mode (fixed minimum shutter speed and let auto ISO does the job of exposure compensation). Heck Z3 doesn't even have macro mode whilst MX4 has micro-spur, which can really take close up macro.

Image quality wise (same ISO and shutter speed), MX4 is better as well. Sony's JPEG algorithm is really rubbish in low light. Sony has pink tint issue in dark indoor condition which is rare. But it's there. Google it up. MX4 has very good color reproduction and white balance. I like the output.

I wish MX4 has better refinement in the UI department. They try too hard to be like Apple (that's why stubbornly retains that center home button so it looks like iPhone). But Android ecology depends heavily on the Back button. That's why Meizu has to resort to gesture to trigger the back button, which is a counter-intuitive afterthought. And retina-sound? LOL The way they coined that term says it all. The company's philosophy is to emulate Apple in Android OS.

Performance-wise, I can't comment much. I'm not really a power user (I don't play games etc) and I don't use lots of apps. But here are some observation:
- Z3 has much better bettery life. 5-6 hours of SOT is easy to achieve with 3G. This is Sony's strength.
- I never encounter any stutter when using Z3. MX4 stuttered once in a long time.
- Z3 is more stable. But then I had an early batch of MX4 (I was in the pre-order program) and didn't have it for long.
- MX4 has much louder speaker without distortion
- Both can play hi-res audio. I think they are comparable but then I'm not an audiophile.
- Z3 is much more comfortable in hand.

I bought my used Z3 ~1.3k with warranty left.

Hope this helps.

Hehe nostalgic.

If only it has the bloody back and multitasking buttons, it's still a good backup phone.

Yeah haha. I don't see any MX4 Pro clearance?

Although you are a certified phone technician, I think at this price it's not worth to fix it already haha.

Yes it is. For the price, it's much better than Xiaomi build quality to be honest.

I remember the LCD was quite good and sharp. The ratio was odd though. The strongest impression was the built in speaker. Although single firing, it was blardy loud and clear.

And of course I hate the lack of back button and multitasking. Apparently Meizu thinks it's faster to use gestures vs buttons. All that just to retain the one home button look as iPhone.

Aiyo ...Haha
Back button is Android's character, just like a Honda must have VTEC. LOL

The screen ratio is more productive but some apps have issues.

Yup.
But why can't they just follow Google's guideline? How can a swipe be any faster or easier than a click?
Similar to the back button.

I see! I can't remember what was the version when I got mine haha.
Other than that, it's a great phone. RM299 is worth it.