LG K31
#4523
Microsoft Lumia 640 XL LTE Dual SIM
#5783Category Breakdown
LG K31
Microsoft Lumia 640 XL LTE Dual SIM
Performance
62.643.6
Camera
19.119.1
Display
56.556.5
Battery
24.224.2
Build
0.20.2
Connectivity
48.052.9
Audio
8.98.9
Overall
32.926.5
Summary
- The LG K31 and Microsoft Lumia 640 XL LTE Dual SIM both feature a 5.7-inch IPS LCD display, but the K31 has a higher resolution of 720 x 1520 pixels compared to the Lumia's 720 x 1280 pixels, resulting in a slightly better pixel density.
- In terms of performance, the K31 is equipped with a more powerful Mediatek Helio P22 chipset and offers 2GB of RAM, while the Lumia relies on the older Snapdragon 400 with only 1GB of RAM.
- Both phones have a 13 MP rear camera capable of 1080p video recording, but the K31's camera has a wider aperture for potentially better low-light performance.
- Battery capacity is identical at 3000 mAh, but both lack fast charging and wireless capabilities.
- The K31 runs on Android 10, providing a more modern software experience compared to the Lumia's Windows Phone 8.1, which can be upgraded to Windows 10.
- Overall, the LG K31 offers superior performance and software, while the Lumia has a slightly larger build and additional NFC connectivity.
Side-by-side Specification Comparison
LG K31
Microsoft Lumia 640 XL LTE Dual SIM
General
Release Date
2020, August 21
2015
Announced
2020, August 21
2015
Description
N/A
N/A
Display
Size
5.7"
5.7"
Type
IPS LCD
IPS LCD
Resolution
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
720 x 1280 pixels, 16:9 ratio (~259 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
Corning Gorilla Glass 3
Performance
Chipset
Mediatek MT6762 Helio P22 (12 nm)
Qualcomm MSM8226 Snapdragon 400 (28 nm)
CPU
Octa-core 2.0 GHz Cortex-A53
Quad-core 1.2 GHz Cortex-A7
GPU
PowerVR GE8320
Adreno 305
Memory
32GB 2GB RAM
8GB 1GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC
microSDXC (dedicated slot)
Camera
Main Camera
13 MP, f/1.8, 27mm (wide), 1/3.1", 1.12µm, PDAF5 MP, f/2.2, 120˚ (ultrawide), 1/5.0", 1.12µm
13 MP, f/2.0, 28mm (wide), 1/3.0", AF
Main Camera Features
LED flash, panorama, HDR
Zeiss optics, LED flash
Front Camera
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
5 MP
Front Camera Features
N/A
N/A
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
Optical Stabilization
✗
✗
Night Mode
✗
✗
Raw Photo Support
✗
✗
Battery
Capacity
3000 mAh
3000 mAh
Battery Details
Li-Ion 3000 mAh
Li-Ion 3000 mAh, removable
Charging Details
N/A
N/A
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
147.8 x 71.1 x 8.6 mm (5.82 x 2.80 x 0.34 in)
157.9 x 81.5 x 9 mm (6.22 x 3.21 x 0.35 in)
Weight
146 g
171 g
Materials
N/A
N/A
Colors
Gray
Matte cyan, Orange, Black, Matte white, Glossy white
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Dual SIM (Micro-SIM, dual stand-by)
Network
GSM / CDMA / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
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 b/g/n, DLNA, hotspot
Bluetooth
5.0, A2DP, LE
4.0, A2DP
NFC
✗
✓
USB
microUSB 2.0
microUSB 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS, BDS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 10, LG UX 9.1
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Fingerprint
✓
✗
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer
Accelerometer, proximity, compass, sensor core