| Hardware and OS | Lenovo K12 | |
| Operating system | Android 10 | |
| Processor | Octa-core (4x2.0 GHz Cortex-A53 & 4x1.5 GHz Cortex-A53) | |
| Chipset | MediaTek MT6762G Helio G25 (12 nm) | |
| Internal memory | 32GB 2GB RAM | |
| External memory | microSDXC (uses shared SIM slot) | |
| GPU | PowerVR GE8320 | |
| Display | Lenovo K12 | other phones |
| Size | 6.5 inches, 102.0 cm2 | |
| Resolution | 720 x 1600 pixels, 20:9 ratio | |
| Type | IPS LCD | |
| Main Camera | Lenovo K12 | other phones |
| Camera | 48 MP, f/1.7, 26mm (wide), 1/2.0", 0.8µm, PDAF
2 MP, f/2.4, (macro) | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | Lenovo K12 | other phones |
| Camera | 5 MP, f/2.2 | |
| Features | HDR | |
| Video | 1080p@30fps | |
| Connectivity | Lenovo K12 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1900 / 2100 | |
| 4G Network | LTE | |
| Bluetooth | 5.0, A2DP, LE | |
| GPS | Yes, A-GPS, GLONASS, GALILEO | |
| NFC | No | |
| Speed | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps | |
| Technology | GSM / HSPA / LTE | |
| USB | USB Type-C 2.0 | |
| WLAN | Wi-Fi 802.11 b/g/n, hotspot | |
| Multimedia | Lenovo K12 | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | FM radio | |
| Battery | Lenovo K12 | other phones |
| Type | Li-Po 4000 mAh, non-removable | |
| Charging | Charging 10W | |
| Design | Lenovo K12 | other phones |
| Body build | Glass front, plastic frame, plastic back | |
| Body | Water-repellent coating | |
| Colors | Mineral Gray, Aqua Blue | |
| Dimensions | 164.9 x 75.7 x 8.9 mm (6.49 x 2.98 x 0.35 in) | |
| Weight | 180 g (6.35 oz) | |
| SIM | Hybrid Dual SIM (Nano-SIM, dual stand-by) | |
| Features | Lenovo K12 | other phones |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | |
