Category Breakdown
LG K51S
TCL 20B
Performance
72.866.7
Camera
19.119.1
Display
56.556.5
Battery
28.128.1
Build
0.265.8
Connectivity
60.548.3
Audio
8.98.9
Overall
36.140.9
Summary
- The LG K51S features a slightly larger 6.55-inch IPS LCD display with a resolution of 720 x 1600 pixels, while the TCL 20B has a 6.52-inch display with the same resolution but a lower pixel density.
- In terms of performance, the K51S is powered by the Mediatek Helio P35 chipset, offering a higher CPU clock speed compared to the Helio P22 in the TCL 20B, which has a lower clock speed and less RAM at 4GB.
- The camera system on the K51S includes a 32 MP main sensor and additional lenses for ultrawide and macro shots, while the TCL 20B features a 50 MP main camera but lacks the versatility of additional lenses.
- Both phones have a 4000 mAh battery, but the TCL 20B supports faster 18W charging.
- The K51S runs on Android 9.0, while the TCL 20B offers a more recent Android 11 with TCL's UI, providing a potentially better software experience.
- Build quality favors the TCL 20B with its glass front, while the K51S is primarily plastic, and the TCL is lighter at 178g compared to the K51S's 194.5g.
Side-by-side Specification Comparison
LG K51S
TCL 20B
General
Release Date
2020, February 18
2021, September 30
Announced
2020, February 18
2021, September 30
Description
N/A
N/A
Display
Size
6.55"
6.52"
Type
IPS LCD
IPS LCD
Resolution
720 x 1600 pixels, 20:9 ratio (~282 ppi density)
720 x 1600 pixels, 20:9 ratio (~269 ppi density)
PPI
720
720
Refresh Rate
60Hz
60Hz
HDR Support
✗
✗
Protection
Scratch-resistant glass
N/A
Performance
Chipset
Mediatek MT6765 Helio P35 (12 nm)
Mediatek MT6762 Helio P22 (12 nm)
CPU
Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Octa-core 1.8 GHz Cortex-A53
GPU
PowerVR GE8320
PowerVR GE8320
Memory
64GB 3GB RAM
64GB 4GB RAM
Expandable Storage
✗
✗
Card Slot
microSDXC (dedicated slot)
microSDXC
Camera
Main Camera
32 MP, (wide), PDAF5 MP, f/2.2, 115˚, (ultrawide)2 MP, f/2.4, (macro)2 MP, f/2.4, (depth)
50 MP, (wide), PDAF2 MP, f/2.4, (depth)
Main Camera Features
LED flash, panorama, HDR
LED flash, HDR, panorama
Front Camera
13 MP, 1/3.1", 1.12µm
8 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
4000 mAh
4000 mAh
Battery Details
Li-Po 4000 mAh
Li-Po 4000 mAh
Charging Details
N/A
18W wired
Fast Charging
✗
✗
Wireless Charging
✗
✗
Build & Safety
Dimensions
165.2 x 76.7 x 8.3 mm (6.50 x 3.02 x 0.33 in)
164.7 x 74.7 x 8 mm (6.48 x 2.94 x 0.31 in)
Weight
194.5 g
178 g
Materials
N/A
Glass front, plastic frame, plastic back
Colors
Titanium, Pink, Blue, Red
Gray, Violet
Foldable
✗
✗
SAR
N/A
N/A
Connectivity
SIM
Nano-SIMNano-SIM + Nano-SIM
Nano-SIM + Nano-SIM
Network
GSM / HSPA / LTE
GSM / 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 b/g/n, Wi-Fi Direct
Bluetooth
5.0, A2DP, LE
5.0, A2DP, LE
NFC
✓
✗
USB
USB Type-C 2.0, OTG
USB Type-C 2.0
IR Blaster
✗
✗
Headphone Jack
✓
✓
Radio
✗
✗
Positioning
GPS
GPS
Audio
Stereo Speakers
✗
✗
Loudspeaker
Yes
Yes
Audio Jack
Yes
Yes
Software & Security
Operating System
Android 9.0 (Pie)
Android 11, TCL UI
Fingerprint
✓
✓
Face Unlock
✗
✗
Sensors
Fingerprint (rear-mounted), accelerometer, proximity, compass
Fingerprint (rear-mounted), accelerometer, proximity

