Category Breakdown
LG Optimus LTE SU640
Xiaomi Redmi
Performance
51.354.3
Camera
42.142.1
Display
70.570.5
Battery
43.543.5
Build
70.870.8
Overall
53.654.5
Summary
- The LG Optimus LTE SU640 features a 4.5-inch HD-IPS LCD display with a resolution of 720 x 1280 pixels, while the Xiaomi Redmi has a slightly larger 4.7-inch IPS LCD display with the same resolution.
- In terms of performance, the LG is powered by a dual-core Snapdragon S3 chipset, whereas the Xiaomi utilizes a quad-core Mediatek MT6589T, offering potentially better multitasking.
- Both phones have an 8 MP rear camera capable of 1080p video recording, but the Xiaomi's camera benefits from a wider aperture.
- The battery capacity of the Xiaomi is higher at 2000 mAh compared to the LG's 1830 mAh, which may provide longer usage.
- The LG runs on an older Android version (upgradable to 4.0) compared to the Xiaomi's Android 4.2, suggesting a more modern software experience on the Redmi.
- In terms of build, the LG is slightly thicker and lighter than the Xiaomi, which is marginally larger and heavier.
Side-by-side Specification Comparison
LG Optimus LTE SU640
Xiaomi Redmi
General
Release Date
2012
2013
Announced
2011
2013
Description
For South Korea
Also known as Xiaomi Hongmi, Xiaomi Red Rice
Display
Size
4.5"
4.7"
Type
HD-IPS LCD
IPS LCD
Resolution
720 x 1280 pixels, 16:9 ratio (~326 ppi density)
720 x 1280 pixels, 16:9 ratio (~312 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
N/A
Corning Gorilla Glass 2
Performance
Chipset
Qualcomm MSM8660 Snapdragon S3
Mediatek MT6589T (28 nm)
CPU
Dual-core 1.5 GHz Scorpion
Quad-core 1.5 GHz Cortex-A7
GPU
Adreno 220
PowerVR SGX544MP2
Memory
4GB 1GB RAM
4GB 1GB RAM
Expandable Storage
✗
✗
Card Slot
microSDHC (dedicated slot), 16 GB included
microSDHC (dedicated slot)
Camera
Main Camera
8 MP
8 MP
Main Camera Details
8 MP, AF
8 MP, f/2.2, 28mm (wide), 1/3.2", 1.4µm, AF
Front Camera
1.3 MP
1.3 MP
Front Camera Details
1.3 MP
1.3 MP
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
N/A
720p@30fps
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
1830 mAh
2000 mAh
Battery Details
Removable Li-Ion 1830 mAh battery
Li-Po 2000 mAh, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
132.9 x 67.9 x 10.4 mm (5.23 x 2.67 x 0.41 in)
137 x 69 x 9.9 mm (5.39 x 2.72 x 0.39 in)
Weight
135 g
158 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Black, White
Black, Chinese Red, Metallic Gray/ blue, green, yellow panels
Foldable
✗
✗
Connectivity
SIM
Mini-SIM
Dual SIM
Network
GSM / HSPA / LTE
GSM / HSPA
Network Speed
HSPA, LTE
HSPA
5G
✗
✗
4G
✓
✗
WiFi
Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, hotspot
Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
Bluetooth
3.0, A2DP
4.0, A2DP, LE
NFC
✗
✗
USB
microUSB 2.0 (MHL TV-out)
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS, A-GPS
GPS
Software
Operating System
Android 2.3.5 (Gingerbread), upgradable to 4.0 (Ice Cream Sandwich)
Android 4.2 (Jelly Bean)
OS Version
Android 2.3.5 (Gingerbread), upgradable to 4.0 (Ice Cream Sandwich)
Android 4.2 (Jelly Bean)
Security
Fingerprint
✗
✗
Face Unlock
✗
✗
Sensors
Accelerometer, gyro, proximity, compass
Accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes

