You need not worry about its warranty because this is from Dell which is rightly the best customer interface in the world. The laptop has several features like Bluetooth and modern facilities and most importantly it is a light weight model.
You can choose Intel, Celeron, Pentium Dual Core, or Core2 Duo, Dual-Core Processors, and choose of Genuine Windows Vista Home Basic or Ubuntu Linux operating systems, you can get the level of performance and productivity that matches your budget.
Purchasing a Dell laptop is so easy and reliable and you can right away start your work without wasting much time and in future if you face any trouble there is 24-hour customer service which can help you through phone line and if you feel that the problem cannot be solved through the phone call, then upon your request dell will send its service person to you.
The added features are several with good external covering which protect from scratching and keyboard is also safe as it is well sealed.
Finally, my word is dell 840 A – VOSTRO is simpley the best and can tell you that you will be 100% satisfied choosing it.