I am writing this review after very heavy use of this phone , n400, for over 3 months. I am going to mention only technical pros and cons of n400. I have good knowledge about android and below info is 100% reliable.
Cons:
1: This phone has very less internal memory. Every app, even if it is installed on sd card, consumes some amount of internal memory. Gradually , the system applications itself will need and consume internal memory resulting in very low internal memory for user , so u can in...

THE MOBILE IS REALLY AS GOOD AS SAMSUNG OR ANY OTHER I GOT IT DELIVERED BEFORE THE DATE SAID BY FLIPKART THANX FOR FAST DELIVERY AND ONE IS REALLY NICE , FEATURES ARE REALLY GOOD WORKING NICE AND THOUGH IT DOESNT HAVE INTERNAL MEMORY OR LESS MEMORY IF U WANT TO INSTALL ANY APP OR TO TAKE PICS ALSO IT IS DIRECTLY ASKING FOR MEMORY CARD TO INSERT SO DONT WORRY ABOUT MEMORY GO WITH UR MEMORY CARD ..GUYS I SAY THOSE WHO R THINKING TO BUY THIS MOBILE JST GO FOR IT IT'S REALLY AWESOME ITS WORTH A 1...

First of all I m using LAVA iris N350....LAVA done a little and efficient twick with their Iris series devices. All downloaded apps are installing on SD card..Now you told me that every android can do that ( with third party apps)...But think twice app like Facebook,Gmail,Map and Play store etc. are unmovable app ( even 3rd party app can't do that)...But in this case all this app installing on SD card and Internal storage remain free...good job lava

This phone configuration is good but quality is dont know i order this phone from snap deal both price are same ..on flipkart and snap deal .... karbonn a15 and lava iris400 that
karbonn a15 lava iris400

1 processor 1ghz ultra fast + 1ghz only -

2 gpu 200 + dont know -

3 display 256 k - 16m +

4 memory 2.5 gb + ...

I ordered ths phn on 16.12.2012 nd get it 24.12.2012..1st of all Thanks to Flipkart for there Superb service....
Nw talk about Lava N400-Its a Great deal at ths price nd u get a Andriod phn..Look wise its so Cool nd woow whn i 1st open the case..4 inch Display which is vry nice...nd 1ghz prosser its fine...The most important things i want to tell about its 5mega pix camare..Its totally great nd the flash is ok..
Bt the most 2 things which disapointment Me its music output no so loud nd the he...

i just received this phone on 25-12-2012 .

advantages
1) good battery backup
2) 1 GB MTK presser and good graphics for gaming
3) camera is good in this segment
4) sound quality is satisfactory .
5) front camera used for 3g video calling a, sky video calling and hangout etc..
6) touch response is good .
7) free ram 225-250 mb is very good
8) light saner working properly .
6)build up quality is good and lite .

cones
1) less internal memory
2) no google apps accept google play (no gmail,talk,m...

Love the phone!!! Camera clarity is good evrythng is just awesome. Except battery back up :( Still tht doesn't matter cos for 6500 you get it all that with other brand you gotto spend more than 15k. Thumbs up for the phn. Go buy it!!!!1

In low price this best phone I got. Best feature given in this prize range. If some one really want good phone with Best feature don’t go for any second hand mobile or less featured famous brand
Mobile. Just don’t thing go for it.

I bought this phone last week not from Flipkart but still i decided to review it.

It is the best phone you can get under 7k.

It has got a 4 inch display, 16m colors, 1ghz processor now what else do you expect

Although internal memory might be an issue to some people,127 Mb is like nothing when you are going for an android but still this much memory is enough to install all kind of necessary apps like whats app, hike, opera mini etc
The best part is it run the games in good graphics without...

except the internal memory.. the whole performance is better than expected....
may be one of the best....
the smooth interface and the 1ghz performance for applications is amazing with just 6.5k..

Thanks to FlipKart delivery to Hyderabad(24 hrs only)