If you have an SE phone, there is absolutely no reason why you should go for the K810i. There is a good chance that your phone has more to boast about than this one, unless you are looking for a 3.2MP camera. More on that later!
The interface is user-friendly, but slight slower than the last one I tested (the W580i). You will notice this 'lag' when you start typing a message. One good thing about the phone is that it’s well equipped with connectivity features. It supports Bluetooth, USB and even infrared. It also features 3G, for which SE has included a secondary QVGA camera just above the screen for video calling. Here's to a speedy rollout of 3G services in India!
What I didn’t like about the phone is that the bundled browser is next to useless. It opens only WAP-enabled sites, so you have to either download Opera Mini or forget about surfing at all. For additional memory the phone takes memory stick micro (M2); the slot is on the left side. Be warned that it tends to get more sluggish than it already is if you max out the data on the card and try accessing it.
It also has the usual assortment of applications bundled with most SE phones. FaceWarp, for instance, is a cool application that allows you to distort any pictures you click. Just check out the handsome dude below.
WOW, I've never seen a more biased review in my life. This guy is obviosly blind AND stupid!! 
