| Hardware and OS | Karbonn S18 | |
| Operating System | Android v4.4.2 (KitKat) | |
| Processor | 1.2 GHz, Quad Core Processor | |
| RAM | 512 MB | |
| Internal Memory | 8 GB | |
| Memory Card Slot | Yes, upto 32 GB | |
| Dual Sim | Yes | |
| Sim Type | Dual Sim, GSM GSM | |
| Display | Karbonn S18 | other phones |
| Screen Size | 4.5 inches, 480 x 854 pixels | |
| Display Type | Color IPS screen | |
| Pixel Density | ~218 PPI | |
| Touch Screen | Yes | |
| Display aspect ratio | 16:9 | |
| Connectivity | Karbonn S18 | other phones |
| 3G Network | Yes | |
| Bluetooth | Yes | |
| EDGE | Yes | |
| GPRS | Yes | |
| GPS | Yes | |
| USB | Yes, microUSB v2.0 | |
| Wifi | Yes, with wifi-hotspot | |
| Camera | Karbonn S18 | other phones |
| Main camera | 5 MP | |
| Flash | Yes, LED | |
| Selfie camera | 2 MP | |
| Multimedia | Karbonn S18 | other phones |
| Headphone jack | Yes | |
| FM Radio | Yes | |
| Java | Yes, via 3rd party | |
| Battery | Karbonn S18 | other phones |
| Battery capacity | 1600 mAh, Li-ion Battery | |
| Type | Removable Battery | |
