| Hardware and OS | Lava Z66 | |
| Operating System | Android v10 (Q) | |
| Processor | Octa core, 1.6 GHz | |
| RAM | 3 GB | |
| Internal Memory | 32 GB | |
| Expandable Memory | yes Up to 128 GB | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Display | Lava Z66 | other phones |
| Screen Size | 6.08 inches (15.44 cm) | |
| Screen Resolution | 720 x 1560 pixels | |
| Display Type | IPS LCD | |
| Pixel Density | 283 ppi | |
| Aspect Ratio | 19:9 | |
| Touch Screen | yes Capacitive Touchscreen, Multi-touch | |
| Main Camera | Lava Z66 | other phones |
| Resolution | 13 MP f/2.0 Primary Camera(1.12µm pixel size)5 MP, Depth Camera
| |
| Image Resolution | 4128 x 3096 Pixels | |
| Flash | yes LED Flash | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Autofocus | yes | |
| Physical Aperture | F2.0 | |
| Video Recording | 1920x1080 @ 30 fps | |
| Shooting Modes | Continuos Shooting, High Dynamic Range mode (HDR), Burst mode | |
| Settings | Exposure compensation, ISO control | |
| Front Camera | Lava Z66 | other phones |
| Resolution | 13 MP f/2.2 Primary Camera(1.12µm pixel size) | |
| Flash | yes Screen flash | |
| Physical Aperture | F2.2 | |
| Connectivity | Lava Z66 | other phones |
| Network | 4G: Available ,
3G: Available, 2G: Available | |
| SIM Size | SIM1: Nano, SIM2: Nano | |
| Bluetooth | yes v4.2 | |
| GPS | yes with A-GPS, Glonass | |
| NFC | No | |
| VoLTE | yes | |
| Wi-Fi | yes Wi-Fi 802.11, b/g/n | |
| Wi-Fi Features | Mobile Hotspot | |
| USB Connectivity | Mass storage device, USB charging, microUSB 2.0 | |
| Multimedia | Lava Z66 | other phones |
| Audio Jack | 3.5 mm | |
| FM Radio | yes | |
| Loudspeaker | yes | |
| Design | Lava Z66 | other phones |
| Height | 155.6 mm | |
| Width | 73.5 mm | |
| Thickness | 8.8 mm | |
| Weight | 162 grams | |
| Colours | Midnight Blue, Marine Blue, Berry Red | |
| Battery | Lava Z66 | other phones |
| Type | Li-Polymer | |
| Capacity | 3950 mAh | |
| User Replaceable | No | |
| TalkTime | Up to 16 Hours(3G) / Up to 38 Hours(2G) | |
| USB Type-C | No | |
| USB OTG Support | yes | |
| Features | Lava Z66 | other phones |
| Fingerprint Sensor | yes | |
| Fingerprint Sensor Position | Rear | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer | |
