If you are an executive in the marker for a suitable call phone, Nokia’s E serise offers the best bang for the buck. the Nokia E51 is the latest from the venerable E serise, and an apt successor to the hugely popular E50 model, which it will eventually replace. The E51 brings in new features at a price that’s hard to beat. The keypad is completely revised, with dedicated keys for Contacts, Calendar, E-mail and Home. The softmenu keys, however, are too small for comfort. The rest of the keypad is a delight good tactile feedback, and key spacing is immaculate. The rebberised keys for volume up / down, push-to-talk and power are head to operate,though.
The E51 feels peppy-it uses the processor as on the flagship N95. With 130 MB of memory on board, you can do lot of multitasking without the phone getting sluggish, and the memory can be expanded to 4 GBvia the microSD slot (a 512 MB card comes bundled). The E51 runs on Symbian OS Series 60, and crams in lot of features besides the standard set. Most of these will go down well with executives-for example, the Advance call manager

lets you manage incoming and outgoing calls efficiently. In addition, WorldMate, an application for frequent fliers, comes bundled. The E51 is a 3G, quad-band phone with HSDPA, Wi-Fi (820.11g) Bluetooth, Micro USB and an infrared port. There’s a switch to turn bluetooth on and off on the main keypad. Multimedia features include a good MP3 player, a 2MP camera with still and video shooting, and FM radio.
Signal reception is good, as is voice clarity. Internet browsing speeds are faster then with the E50 or E61, thanks to the revised Web browser. The camera is above average, but loses performance in low- light conditions, with little or no echo on the recipient’s side. We got around three days of battery life with nominal usage and a terrific seven days of standby time. The Nokia E5 retails at $375 ; it is, we think, a must- buy.

Micro-SD card
Micro SD memory
Memory Stick Micro
M2 memory
M2 card