The W810i an awesome phone and a complete package. The phone is as sleek and stylish as anything. Don't go by it's small size! The W810i is packed with a number of useful and trendy functions.
The model with black colour is an absolute beauty. It has a number of one-touch shortcut keys that makes the features easily accessible. The 2.0 megapixel camera helps in taking clear images and the video recording is also good if not great. The sound quality of the speakers is good but they are not that loud. However, this is covered up by providing free detachable speakers. These speakers are a sound power-house and the people around you are sure to notice the sound quality produced.
The phone comes with a free 512 MB memory card for storing songs, videos, images and other files. The memory is extendable up to 2 GB which is quite enough.
The only negative point that you can find in the mobile is it's small screen. But if the screen size is increased, it will be unable to retain it's compact and sleek design.
The W810i is neither too cheap nor too costly. It's priced quite right for a phone with such features. The phone is quite reliable and never hangs even when you use multiple applications at a time. The keys on the keypad, though small, are quite soft and easy to use. The backup of the battery is very impressive.