I've owned my D900i for about two months now. I decided to go for this model because I wanted a phone with a good camera and also wanted to change to a new network so I bought this one from O2 with a text anytime sim card (which has saved me a lot and is much better than a monthly contract)

One thing I liked most about it was the size. I had no idea how slim it was until after I took it out of the box for the first time. It's very slim but has a big high quality screen and great camera, and the lense is protected as when the phone isn't slid out the lense is hidden behind the back of the phone so it can't get scratched when you carry it around in a bag or in your pocket. Below the screen when closed there are some buttons none of which are touch screen desgined like another Samsung model similar to this one. In the centre is the OK button, used to make selections and around that is a larger button used to navigate your way through the menu on the phone. On the lower left and right of this are the answer and hang up buttons - the red hang up one is also used to switch the phone on and off. Below te centre buttons is the C button which is used to delete words in messages, and above both the answer and hang up buttons are two buttons both with three dots on them which are usually used for Select and Back options when navigating the menu. The number keypad is the same as any standard mobile and slides out. When closed, the keypad is locked but is immediately unlocked when you slide it up or you can press buttons to unlock it without sliding it up. The speaker is a small slit above the screen and the battery is inserted in the back of the phone simply by sliding the back off. The micro SD slot is on the lower left side of the phone. It's a dark grey mostly in colour with a chrome surround on it that makes it look sliver all over.

When you switch on the phone, you get a background of Big Ben and the Houses of Parliament which has birds flying across during the day and at 9pm changes to a nighttime screen with shooting stars. When you get a text or missed call during the day, planes fly across the screen and by night you get a fireworks display! A friend of mine who owns this phone told me that when they were in France on holiday the background changed to show the Arc du Triomphe! Also, when you key in a phone number the display changes to a letter writing theme and the numbers are written out on paper by a fountain pen as you type them. There is also a clock on the main screen next to big ben.

When you press the Menu option, you have nine options: Call log, Phonebook, Applications, Browser, Messages, My files, Planner, Camera, Settings. Each has its own picture and they're all a different colour on a black background. Your call log stores all your recent calls as well as missed calls and here you can also access your total call time. The phonebook is where you store all your numbers either on your sim card or the phone. Applications is where you access the music player, voice recorder, image editor, FM radio, Bluetooth, Java world (games) and O2 (on this model) which has customer services and voicemail etc. Browser is where you can access the internet, Messages is where you manage texts and my files is where you store music, videos, pictures etc. Planner has a lot of very useful options such as alarm, world clock, calculator and a converter for weight, height, currency etc. Camera has both a picture and video camera and settings has all the basic phone controls like time and date and sound settings.

Texting on this phone is very easy to get used to. Having being used to my old Motorola V220 it took a little bit of getting used to but it's not tricky at all. You can use predictive if you want but it isn't the default setting. To swtich between predictive, non-predictive and numbers you simply use the hash key. If you type a word on predictive and it brings up the wrong one you just need to press 0 again until the one you want appears. If it doesn't a spell option comes up where you can add a word and it will be saved for future use. This phone also has a vivid message mode where you can view messages like little cartoons for some words eg. cat brings up a little picture of a cat that dances across the screen and house brings up a picture of a house.

The music player can play mp3s which you can put onto the phone through the USB cable supplied with it after installing the sotware disc also supplied. These can also be used as ringtones, which are better quality than the ones you download (it also saves you £3.50 a time!). This phone also has a radio which only works when you plug in the headphones that come with it as the ariel is part of them but you can listen to from the speaker too as long as they are plugged in. I'm not sure exactly what the memory of the phone is but you can store quite a few things on it - I have about 10 songs so far and there's still quite a lot of space. You can also buy a micro SD card if you want to store more but 2GB ones don't work on this phone. I own a 1GB one however and it works fine.

The camera is 3mp which is just like a digital camera. It has a flash but you have to switch it on first because it isn't set on automatic although it has this option. The video camera isn't as good quality as the photo camera but is still of great quality. It plays back videos on a smaller screen but you can change to full screen by pressing either hash or star (I can't remember which is right!) You can also changed the effects of the camera for both videos and pictures to negative, moonlight (which gives it a blue glow) sepia (which makes everything orange) and some others which is good fun if you're bored!

The battery doesn't seem to last very long, sometimes it's run out after being on for a day but when you close it it goes dark and looks like its off to conserver energy. Another small problem is that when you're sending a text you must keep the phone slid open. If you close it, the message doesn't send and just goes to the draft folder, but at least you don't lose the message.

This phone cost £139.99 which I think is well worth it, especially when you compare it to other camera phones. I can highly recommend it to anyone looking for a new phone.