| Hardware and OS | Karbonn K9 Smart Eco | |
| Operating system | Android 7.0 Nougat | |
| Processor | Quad-Core 1.2 GHz ARM Cortex-A7 | |
| GPU | ARM Mali-400 MP2, 2-Core | |
| RAM | 1GB | |
| Internal Storage | 8GB | |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| User Interface | Yes with Modified Android | |
| Display | Karbonn K9 Smart Eco | other phones |
| Type | LCD capacitive touchscreen | |
| Size | 5.0 inches | |
| Resolution | 480 x 854 Pixels, 24 bit color depth | |
| Colors | 16M Colors | |
| Pixel Density | ~ 196 ppi | |
| Touchscreen | Yes Multi Touch Support | |
| Protection | Not Support | |
| Features | FWVGA display, ~ 196 PPI, Capacitive, Multi-touch | |
| Connectivity | Karbonn K9 Smart Eco | other phones |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Hotspot | |
| GPS | Yes, with GPS, A-GPS | |
| NFC | No | |
| USB | Micro USBv2.0 with Charging and Mass Storage | |
| SIM | Nano SIM | |
| Dual SIM | Dual SIM (Nano, Nano), Dual Standby | |
| Wireless Charging | No | |
| Camera | Karbonn K9 Smart Eco | other phones |
| Main camera | 2 Megapixels | |
| Features | Yes with Dual-LED Flash | |
| Image | 1600 x 1200 Pixels | |
| Selfie camera | 2 Megapixels | |
| Multimedia | Karbonn K9 Smart Eco | other phones |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Radio | Yes | |
| Video Playback | Yes Support 3GP, MP4, AVI, H.263 | |
| Video Out | Not Support | |
| Ring Tones | Yes | |
| 3.5 mm Jack | yes | |
| Design | Karbonn K9 Smart Eco | other phones |
| Dimensions | 145 mm x 72 mm x 11 mm | |
| Waterproof | No | |
| Weight | 156 Grams (With Battery) | |
| Battery | Karbonn K9 Smart Eco | other phones |
| Capacity | 2,300 mAh Lithium-Ion | |
| Placement | Removable | |
| Other | Karbonn K9 Smart Eco | other phones |
| Sensors | G-Sensor | |
