LG K51S
#3962
Oppo A9x
#3715Category Breakdown
LG K51S
Oppo A9x
Performance
62.564.8
Camera
44.144.1
Display
70.570.5
Battery
43.543.5
Build
68.868.8
Overall
57.358.0
Summary
- The LG K51S features a 6.55-inch IPS LCD display with a resolution of 720 x 1600 pixels, while the Oppo A9x has a slightly smaller 6.53-inch IPS LCD display with a higher resolution of 1080 x 2340 pixels, resulting in better pixel density.
- In terms of performance, the K51S is powered by the Mediatek Helio P35 chipset with 3GB of RAM, whereas the A9x utilizes the more powerful Helio P70 with 6GB of RAM, providing better multitasking capabilities.
- Camera-wise, the K51S has a 32 MP main sensor compared to the A9x's 48 MP, with the latter also offering a 16 MP selfie camera versus the K51S's 13 MP.
- Both devices have similar battery capacities, with the K51S at 4000 mAh and the A9x at 4020 mAh, but the A9x supports 20W fast charging.
- Both run on Android 9.0, but the A9x features ColorOS 6 for a different software experience.
Side-by-side Specification Comparison
LG K51S
Oppo A9x
General
Release Date
2020, February 18
2019
Announced
2020, February 18
2019
Description
N/A
N/A
Display
Size
6.55"
6.53"
Type
IPS LCD
IPS LCD
Resolution
720 x 1600 pixels, 20:9 ratio (~282 ppi density)
1080 x 2340 pixels, 19.5:9 ratio (~395 ppi density)
PPI
720
1080
Refresh Rate
60Hz
60Hz
Peak Brightness
N/A
N/A
HDR Support
✗
✗
Protection
Scratch-resistant glass
Corning Gorilla Glass 5
Performance
Chipset
Mediatek MT6765 Helio P35 (12 nm)
Mediatek MT6771V Helio P70 (12 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Octa-core (4x2.1 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53)
GPU
PowerVR GE8320
Mali-G72 MP3
Memory
64GB 3GB RAM
128GB 6GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC (uses shared SIM slot)
Camera
Main Camera
32 MP
48 MP
Main Camera Details
32 MP, (wide), PDAF5 MP, f/2.2, 115˚, (ultrawide)2 MP, f/2.4, (macro)2 MP, f/2.4, (depth)
48 MP, f/1.7, (wide), 1/2.0", 0.8µm, PDAF2 MP, f/2.4, (depth)
Front Camera
13 MP
16 MP
Front Camera Details
13 MP, 1/3.1", 1.12µm
16 MP, f/2.0, 26mm (wide), 1/3.06", 1.0µm
Video Recording
1080p@30fps
1080p@30fps
Selfie Video
1080p@30fps
1080p@30fps
OIS
✗
✗
Night Mode
✗
✗
RAW Support
✗
✗
Battery
Capacity
4000 mAh
4020 mAh
Battery Details
Li-Po 4000 mAh
Li-Po 4020 mAh, non-removable
Charging Details
N/A
20W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Design
Dimensions
165.2 x 76.7 x 8.3 mm (6.50 x 3.02 x 0.33 in)
162 x 76.1 x 8.3 mm (6.38 x 3.00 x 0.33 in)
Weight
194.5 g
190 g
Materials
N/A
N/A
Water Resistance
N/A
N/A
Colors
Titanium, Pink, Blue, Red
Meteorite Black, Ice Jade White
Foldable
✗
✗
Connectivity
SIM
Nano-SIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / CDMA / HSPA / LTE
Network Speed
HSPA 42.2/5.76 Mbps, LTE (2CA) Cat6 300/50 Mbps
HSPA, LTE
5G
✗
✗
4G
✓
✓
WiFi
Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, DLNAorWi-Fi 802.11 b/g/n, Wi-Fi Direct, DLNA
Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
4.2, A2DP, LE
NFC
✓
✓
USB
USB Type-C 2.0, OTG
microUSB 2.0, OTG
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS, GLONASS, BDS
Software
Operating System
Android 9.0 (Pie)
Android 9.0 (Pie), ColorOS 6
OS Version
Android 9.0 (Pie)
Android 9.0 (Pie), ColorOS 6
Security
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes