| Hardware and OS | Karbonn K9 Smart Plus | |
| Operating system | Android 8.1 Oreo | |
| Processor | 1400 MHz, Cores: 4 | |
| RAM | 3GB | |
| Internal Storage | 32GB | |
| Memory Card Slot | microSD, microSDHC, microSDXC | |
| User Interface | Yes | |
| Display | Karbonn K9 Smart Plus | other phones |
| Type | IPS | |
| Resolution | 480 x 960 pixels | |
| Colors | 16M | |
| Pixel Density | 197 ppi | |
| Touchscreen | Yes | |
| Protection | Full Lamination Technology | |
| Features | Capacitive, Multi-touch | |
| Connectivity | Karbonn K9 Smart Plus | other phones |
| 4G Network | Yes | |
| Wi-Fi | b, g, n, Wi-Fi Hotspot | |
| GPS | GPS, A-GPS | |
| NFC | No | |
| USB | 2.0, Micro USB | |
| Speed | LTE 850 MHz LTE 1800 MHz LTE-TDD 2300 MHz (B40) LTE-TDD 2500 MHz (B41) | |
| SIM | Micro SIM | |
| Wireless Charging | No | |
| Camera | Karbonn K9 Smart Plus | other phones |
| Main camera | 7.99 MP (megapixels) | |
| Features | Dual LED | |
| Image | 3264 x 2448 pixels | |
| Selfie camera | 7.99 MP (megapixels) | |
| Multimedia | Karbonn K9 Smart Plus | other phones |
| Loudspeaker | Yes | |
| Handsfree | Yes | |
| Radio | Yes | |
| Video Playback | Yes | |
| Video Out | Yes | |
| Ring Tones | Yes | |
| 3.5 mm Jack | yes | |
| Design | Karbonn K9 Smart Plus | other phones |
| Dimensions | 71.5 x 147.6 x 9.35 mm | |
| Waterproof | No | |
| Weight | 144 g | |
| Battery | Karbonn K9 Smart Plus | other phones |
| Capacity | 2500 mAh, Li-Ion | |
| Other | Karbonn K9 Smart Plus | other phones |
| Sensors | Proximity, Light, Accelerometer, Fingerprint | |
