Lava Z40
#7044
LG E900 Optimus 7
#8422Category Breakdown
Lava Z40
LG E900 Optimus 7
Performance
45.943.2
Camera
24.214.0
Display
12.016.9
Battery
20.615.2
Build
0.217.2
Connectivity
46.527.5
Audio
8.98.9
Overall
20.815.2
Summary
- The Lava Z40 features a slightly larger 4.0-inch TN TFT LCD display compared to the 3.8-inch TFT display of the LG E900 Optimus 7, both with the same resolution of 480 x 800 pixels.
- In terms of performance, the Z40 is powered by a Quad-core 1.4 GHz Unisoc SC9832E chipset with 1GB RAM, while the Optimus 7 uses a 1.0 GHz Qualcomm QSD8650 Snapdragon S1 with 512MB RAM, resulting in better multitasking capabilities for the Z40.
- The camera on the Z40 is limited to a 2 MP rear sensor, whereas the Optimus 7 offers a more capable 5 MP rear camera with autofocus.
- Battery capacity is higher in the Z40 at 2250 mAh compared to the 1500 mAh of the Optimus 7, potentially offering longer usage time.
- The Z40 runs on Android 8.1 Oreo (Go edition), while the Optimus 7 operates on Microsoft Windows Phone 7, which may affect the software experience and app availability.
- Build quality is comparable, with the Z40 being lighter at 120g versus the 157g of the Optimus 7.
Side-by-side Specification Comparison
Lava Z40
LG E900 Optimus 7
General
Release Date
2019
2010
Announced
2019
2010
Description
For India
N/A
Display
Size
4"
3.8"
Type
TN TFT LCD
TFT
Resolution
480 x 800 pixels, 5:3 ratio (~233 ppi density)
480 x 800 pixels, 5:3 ratio (~246 ppi density)
PPI
480
480
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Corning Gorilla Glass (unspecified version)
Corning Gorilla Glass
Performance
Chipset
Unisoc SC9832E
Qualcomm QSD8650 Snapdragon S1
CPU
Quad-core 1.4 GHz
1.0 GHz Scorpion
GPU
Mali
Adreno 200
Memory
8GB 1GB RAM
16GB 512MB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC
No
Camera
Main Camera
2 MP
5 MP, AF
Main Camera Features
LED flash, HDR
LED flash
Front Camera
2 MP
N/A
Front Camera Features
LED flash
N/A
Video Recording
720p@30fps
720p@24fps
Selfie Video
N/A
N/A
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
2250 mAh
1500 mAh
Battery Details
Li-Ion 2250 mAh, removable
Removable Li-Ion 1500 mAh battery
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
125.5 x 63.9 x 11.7 mm (4.94 x 2.52 x 0.46 in)
125 x 59.8 x 11.5 mm (4.92 x 2.35 x 0.45 in)
Weight
120 g
157 g
Materials
N/A
N/A
Colors
Gold, Glossy Black
Black
Foldable
✗
✗
SAR
N/A
0.59 W/kg (head) 0.63 W/kg (body)
Connectivity
SIM
Nano-SIM + Nano-SIM
Mini-SIM
Network
GSM / HSPA / LTE
GSM / HSPA
Network Speed
HSPA 21.1/5.76 Mbps, LTE Cat4 150/50 Mbps
HSPA 7.2/5.76 Mbps
5G
✗
✗
4G
✓
✗
WiFi
Wi-Fi 802.11 b/g/n, Wi-Fi Direct
Wi-Fi 802.11 b/g/n, DLNA
Bluetooth
4.2, A2DP, LE
2.1, A2DP
NFC
✗
✗
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, GLONASS, BDS
GPS, A-GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 8.1 Oreo (Go edition)
Microsoft Windows Phone 7, upgradable to 7.8
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer
Accelerometer, proximity, compass