M-Tech Opal S2 3G Sim Type: GSM+GSM; Dual Sim: Yes; Dimensions: 116.3 x 10.3 x 62 mm; Type: Color; Touchscreen: Yes; Size: 3.5 inches, 480 x 320 pixels; PPI: ~ 165 PPI; RAM: 256 MB; Internal memory: 512 MB inbuilt; Card Slot: Yes, upto 32 GB; 3G: Yes; Wi-Fi...