In single word it is the worst nokia phone i used .The main problem is that its dual sim is not perfect.One sim always shows poor coverage even if u have good signal over there.Another problem is u wont get log option in menu.Its inside contacts.Cant rearrange icons.And the most thing is that it wont show contacts,u have to restart phone to get it.I found similar problem in my friend's phone.Please dont buy this phone.Bulid and style is good.

I bought this phone in Dec 11 but was quite unhappy from day 1 as the touch screen was very unresponsive. I thought I would get used to it but then it did not turn out that way. After six months the touch screen became absolutely unresponsive to an extent that nothing was activated through the screen. The most annoying part was that when I touched the right corner something else would get activated.

Sometimes even when you receive the call it does not get connected and the other person feels...

I am personally using it for the last 8 months. On the basis of that I am writing my review:
Pros:
Good looks.(Stylish)
Alphanumeric keypad response is good.
Cons:
Nokia browser is very bad. It may not even work.
Touch is very much bad.
The phone is too slow.
The phone hangs too much.
The inbuilt nokia maps worked fine for the first two months and then it abruptly stopped working.
The voice recorder quality is very bad. The recording sound is very much low and it comes broken sometimes.

The dual SIM facility is good. But the phone has many problems.
1.Hang anytime
2.Switch off anytime
3.Some time can't access internet
4.This phone don't support rtsp. So it can't play youtube or any live streaming videos.

pls dont go for this c2 03 model ... display problem and touch is very bad ... i buyed this mobile last Aug my display gone though am having the warranty i cant change the display they are telling to wait for 15 days ... already 1 month gone

I regret buying this phone..
spent my first salary on it..
and it really sucks..
it has hell lot of a problems..
don't go for this..
you might feel like throwing it after using it...
i lost trust in Nokia now...

I mean it guys don't go for it. Problems after problems after problems. s4o based phones should be banned. spend so much money on calling Nokia but the problems keep coming. s4o is the worst OS I saw in my 10+ years of computing exp.

Because of this phone i lost my trust in NOKIA.Still i cant believe..that this one is from Nokia.Very poor touch,long time for battery charging.Now my radio is not working.I don't know what's happening.Only two months back i purchased this one.

This phone having touch screen problem mostly.
If we go to nokia care they will tell 15 to 25 days to repair this model.

Internet speed is good,sound is very low.Touch pad is not that much responsive.

last week only I have given my phone for reapair.

Surprisingly nokia is giving BL 5C 1020 mAh battery with this phone which is launched by it in 2005-06 with Nokia 6630 etc phones.
Believe me friends this is not a good choice for any dual sim phone with such a big touch screen.