Benq-Siemens EF51 Dimensions: 3.50 x 1.92 x 0.70 inches (89 x 49 x 18 mm); Weight: 3.35 oz (95 g)the average is 4.8 oz (137 g); Design features: Soft keys (2); Side Keys: Left: Volume control, Camera shutter, Other; Resolution: 128 x 128 pixels; Technology: TFT;...