LG K31
#4523
LG Q51
#3645Category Breakdown
LG K31
LG Q51
Performance
62.662.6
Camera
19.119.1
Display
56.556.5
Battery
24.228.1
Build
0.20.2
Connectivity
48.063.6
Audio
8.987.6
Overall
32.939.5
Summary
- The LG K31 features a compact build with a 5.7-inch IPS LCD display at 720 x 1520 pixels, while the LG Q51 has a larger 6.5-inch IPS LCD with the same resolution but lower pixel density.
- Both devices utilize the Mediatek MT6762 Helio P22 chipset, but the K31 has 2GB of RAM compared to the Q51's 3GB, potentially affecting multitasking performance.
- In terms of camera capabilities, both phones have a 13 MP main sensor, but the Q51 includes an additional depth sensor and a higher-resolution 13 MP selfie camera, whereas the K31's selfie camera is 5 MP.
- The K31 is equipped with a 3000 mAh battery, while the Q51 offers a larger 4000 mAh battery, providing longer usage time.
- Both run on Android 10, but the Q51 supports stereo speakers and includes NFC, features absent in the K31.
Side-by-side Specification Comparison
LG K31
LG Q51
General
Release Date
2020, August 21
2020, February 25
Announced
2020, August 21
2020, February 25
Description
N/A
N/A
Display
Size
5.7"
6.5"
Type
IPS LCD
IPS LCD
Resolution
720 x 1520 pixels, 19:9 ratio (~295 ppi density)
720 x 1520 pixels, 19:9 ratio (~259 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
N/A
N/A
Performance
Chipset
Mediatek MT6762 Helio P22 (12 nm)
Mediatek MT6762 Helio P22 (12 nm)
CPU
Octa-core 2.0 GHz Cortex-A53
Octa-core 2.0 GHz Cortex-A53
GPU
PowerVR GE8320
PowerVR GE8320
Memory
32GB 2GB RAM
32GB 3GB 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, (wide), PDAF5 MP, 13mm (ultrawide)2 MP, f/2.4, (depth)
Main Camera Features
LED flash, panorama, HDR
LED flash, panorama, HDR
Front Camera
5 MP, f/2.2, 24mm (wide), 1/5.0", 1.12µm
13 MP, (wide), 1/3.1", 1.12µm
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
4000 mAh
Battery Details
Li-Ion 3000 mAh
Li-Po 4000 mAh
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)
164.5 x 77.5 x 8.4 mm (6.48 x 3.05 x 0.33 in)
Weight
146 g
N/A
Materials
N/A
N/A
Colors
Gray
Frozen White, Moonlight Titanium
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / CDMA / HSPA / LTE
GSM / HSPA / LTE
Network Speed
HSPA, LTE
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/75 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, DLNA
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
NFC
✗
✓
USB
microUSB 2.0
USB Type-C 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS
Audio
Stereo Speakers
✗
✓
Loudspeaker
Yes
Yes, with stereo speakers
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 10, LG UX 9.1
Android 10
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer
Fingerprint (rear-mounted), accelerometer, proximity, compass