Ur mama is so fashion and modern
Thumbs up for mama

Well. My review on this phone ,
Smooth , so far didn't lag at all ( don't know what apps to test ) , surf lowyat forum pretty smooth , fast browsing speed.
The phone is nice to hold .
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Before this I've quite poor battery life, now I just fully charged my phone again and switch highest connection speed to 2G , means only use GSM instead of dual band, will report my battery life again. Unplug from charger less than 1 hour , wifi on , now still maintain 100% battery life.
This phone is easy to use , as long as you set your tiles nicely, the apps that you always wanted to use.
Other than that, you can also group up contact and pin it on home screen . For an example, make a group called Family , then add up all the family member inside ..

5mp camera without carl zeiss , decent , don't expect too much . You can snap photo by press the 2 stage camera button or with a single touch on screen , it will focus and snap .

Don't have AMOLED , but readability under the sun is very good *thumbs up*
I was using auto screen brightness .
No problem at all.
I did compare side by side with Lumia 920 .
Open Nokia maps ,Nokia drive , Lumia 920 is faster , but if I would say, it worth to buy 620 if you don't demand for very very high performance . No doubt it's slower a bit , by few seconds , not too long .