Lava Z81
#4728
Lava Z91
#4752Category Breakdown
Lava Z81
Lava Z91
Performance
56.054.1
Camera
27.927.9
Display
56.556.5
Battery
24.224.2
Build
0.20.2
Connectivity
45.648.8
Audio
8.98.9
Overall
31.531.4
Summary
- The Lava Z81 and Z91 both feature a 5.7-inch IPS LCD display with a resolution of 720 x 1440 pixels, but the Z81 is slightly lighter at 141g compared to the Z91's 147g.
- In terms of performance, the Z81 is powered by a Mediatek MT6761 Helio A22 chipset with a faster 2.0 GHz CPU, while the Z91 uses the older MT6739 at 1.3 GHz.
- Both have a 13 MP rear camera, but the Z91 offers a wider aperture of f/2.0, potentially improving low-light performance, and an 8 MP selfie camera compared to the Z81's 13 MP.
- Both models have a 3000 mAh battery and run different versions of Android, with the Z81 on Android 8.1 and the Z91 on Android 7.1, impacting the software experience.
- Connectivity options differ slightly, with the Z91 supporting dual-band Wi-Fi and USB OTG, while the Z81 has a simpler Wi-Fi setup.
Side-by-side Specification Comparison
Lava Z81
Lava Z91
General
Release Date
2018
2018
Announced
2018
2018
Description
For India
For India
Display
Size
5.7"
5.7"
Type
IPS LCD
IPS LCD
Resolution
720 x 1440 pixels, 18:9 ratio (~282 ppi density)
720 x 1440 pixels, 18:9 ratio (~282 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass 3
N/A
Performance
Chipset
Mediatek MT6761 Helio A22 (12 nm)
Mediatek MT6739 (28 nm)
CPU
Quad-core 2.0 GHz Cortex-A53
Quad-core 1.3 GHz Cortex-A53
GPU
PowerVR GE8320
PowerVR GE8100
Memory
16GB 2GB RAM, 32GB 3GB RAM
32GB 3GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (dedicated slot)
Camera
Main Camera
13 MP, f/2.2
13 MP, f/2.0, 1/3.1", 1.12µm, AF
Main Camera Features
LED flash, HDR, panorama
LED flash
Front Camera
13 MP, f/2.0
8 MP, f/2.2
Front Camera Features
LED flash
LED flash
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3000 mAh
3000 mAh
Battery Details
Li-Po 3000 mAh, non-removable
Li-Po 3000 mAh, non-removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
152.2 x 73 x 7.9 mm (5.99 x 2.87 x 0.31 in)
152 x 72.9 x 7.7 mm (5.98 x 2.87 x 0.30 in)
Weight
141 g
147 g
Materials
N/A
N/A
Colors
Black/Blue, Gold/Black
Blue
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
4.2, A2DP, LE
4.0, A2DP
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 8.1 (Oreo)
Android 7.1 (Nougat)
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity
Fingerprint (rear-mounted), accelerometer, proximity