| Hardware and OS Lava Z91 (2GB) |
| Operating system: | Android 7.1 (Nougat) |
| Processor: | Quad-core 1.3 GHz Cortex-A53 |
| Chipset: | Mediatek MT6739 (28 nm) |
| Internal memory: | 16GB 2GB RAM |
| External memory: | microSDXC (dedicated slot) |
| GPU: | PowerVR GE8100 |
| Display Lava Z91 (2GB) |
| Size: | 5.7 inches, 83.8 cm2 |
| Resolution: | 720 x 1440 pixels, 18:9 ratio |
| Type: | IPS LCD capacitive touchscreen, 16M colors |
| Main Camera Lava Z91 (2GB) |
| Camera: | 13 MP, f/2.0, 1/3.1", 1.12µm, AF |
| Features: | LED flash |
| Video: | 1080p@30fps |
| Selfie camera Lava Z91 (2GB) |
| Camera: | 8 MP, f/2.2 |
| Features: | LED flash |
| Connectivity Lava Z91 (2GB) |
| 2G Network: | GSM 900 / 1800 - SIM 1 & SIM 2 |
| 3G Network: | HSDPA 900 / 2100 |
| 4G Network: | LTE band 1(2100), 3(1800), 5(850), 40(2300), 41(2500) |
| Bluetooth: | 4.0, A2DP |
| GPS: | Yes, with A-GPS |
| Speed: | HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps |
| Technology: | GSM / HSPA / LTE |
| USB: | microUSB 2.0, USB On-The-Go |
| WLAN: | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Multimedia Lava Z91 (2GB) |
| 3.5 mm Jack: | Yes |
| Loudspeaker: | Yes |
| Radio: | FM radio |
| Battery Lava Z91 (2GB) |
| Capacity: | Non-removable Li-Po 3000 mAh battery |
| Design Lava Z91 (2GB) |
| Colors: | Blue |
| Dimensions: | 152 x 72.9 x 7.7 mm (5.98 x 2.87 x 0.30 in) |
| Weight: | 147 g (5.19 oz) |
| SIM: | Dual SIM (Nano-SIM, dual stand-by) |
| Features Lava Z91 (2GB) |
| Sensors: | Fingerprint (rear-mounted), accelerometer, proximity |
