LG K40S vs LG K51S vs Coolpad Legacy Specs Comparison

Compare mobile phone specifications of up to three devices at once. Our specs comparison tool helps you find and compare the perfect phone for your needs.

Comparison mode:
Differences only
LG K40S LG K51S Coolpad Legacy
Released · September 2019
Released · Apr 27, 2020
Released · May 13, 2019
6.1-inch · 1560x720px
6.5-inch · 1600x720px
6.4-inch · 2160x1080px
Dual camera
Quad camera
Dual camera
3GB · 32GB
3GB · 64GB
3GB · 32GB
3500 mAh
4000 mAh
4000 mAh
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Availability

Officially announced
Aug 22, 2019 Feb 18, 2020 May 13, 2019
Prices (MSRP)
$130

Design

Dimensions
6.15 x 2.91 x 0.34 inches
156.3 x 73.9 x 8.6 mm
6.50 x 3.02 x 0.33 inches
165.2 x 76.7 x 8.3 mm
6.53 x 3.17 x 0.33 inches
165.9 x 80.5 x 8.4 mm
Weight
6.77 oz / 192.0 g 5.99 oz / 170.0 g
Materials
Back: Plastic Back: Plastic
Frame: Metal
Resistance
MIL-STD-810 certified Yes; MIL-STD-810 certified
Biometrics
Fingerprint (touch) Fingerprint (touch) 2D Face unlock, Fingerprint (touch)
Keys
Left: Volume control, Lock/Unlock key Left: Volume control, Other; Right: Lock/Unlock key Right: Volume control, Lock/Unlock key
Colors
Aurora black, Moroccan blue Titanium, Pink, Blue Quicksilver

Display

Size
6.1-inch, 79.11% screen-to-body 6.5-inch, 83.97% screen-to-body 6.4-inch, 78.16% screen-to-body
Type
IPS LCD IPS LCD
Resolution
1560x720px, 19.5:9 ratio, 282 PPI 1600x720px, 20:9 ratio, 270 PPI 2160x1080px, 18:9 ratio, 380 PPI
Colors
16 777 216
Protection
Corning Gorilla Glass 3

Hardware

System chip
Mediatek Helio P22 MT6762 (12 nm) MediaTek Helio P35 MT6765 (12 nm) Snapdragon 450 SDM450 (14 nm)
Processor
Octa-core
2000 MHz
ARM Cortex-A53
Octa-core
2300 MHz
Arm Cortex-A53
Octa-core
1800 MHz
ARM Cortex-A53
GPU
IMG PowerVR GE8320 PowerVR GE8320 Adreno 506
Memory
3GB/32GB (eMMC 5.1) 3GB/64GB (eMMC 5.1) 3GB (LPDDR3)/32GB
Storage expansion
microSDXC up to 2000 GB microSDXC up to 2048 GB microSDXC up to 128 GB
OS
Android (9.0 Pie) Android (10) Android (9.0 Pie)

Battery

Type
3500 mAh 4000 mAh 4000 mAh
Charging
Qualcomm Quick Charge 3.0

Camera

Rear
Dual camera Quad camera Dual camera
Main camera
13 MP (PDAF)
Aperture size: F2.2
Focal length: 26 mm
32 MP (PDAF) 16 MP (Autofocus)
Second camera
5 MP (Ultra-wide) 5 MP (Ultra-wide) 5 MP
Third camera
2 MP (Macro)
Fourth camera
2 MP (Depth information)
Flash
LED LED LED
Video recording
1080p (30 fps) 1080p (30 fps) 1080p (30 fps)
Video calling, Video sharing
Front
13 MP
Video capture: 1080p
13 MP 13 MP
Video capture: 1080p

Connectivity & Features

Bluetooth
5.0 5.0 4.2
WLAN
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 b, g, n, ac
a,b,g,n,ac,dual-band
Hotspot, Wi-Fi Direct
802.11 a, b, g, n, ac
USB
microUSB, USB 2.0 Type-C Type-C, USB 2.0
Sensors
Accelerometer, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M4/T4
Location
GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning GPS, A-GPS, Glonass, Cell ID, Wi-Fi positioning GPS, A-GPS
Other
NFC UMA (Wi-Fi Calling), VoIP, Tethering, Computer sync, OTA sync

Multimedia

Headphones
3.5mm jack 3.5mm jack 3.5mm jack
Speakers
Earpiece, Loudspeaker Earpiece, Loudspeaker Earpiece, Loudspeaker
Features
DTS:X Virtual Surround DTS:X Virtual Surround Album art cover, Background playback
Screen mirroring
DLNA,Wireless screen share Wireless screen share Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation

Cellular

LTE Bands
1, 3, 7, 8, 20 1, 3, 7, 8, 20, 28 2, 4, 5, 12, 66, 71
TDD Bands
38
3G Bands
1, 2, 5, 8 1, 2, 5, 8 5, 4, 2
Data Speed
LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS
Dual SIM
Yes
SIM type
Nano SIM Nano SIM Nano SIM
VoLTE
Yes

Phone Features

Notifications
Haptic feedback, Music ringtones, Vibration
Other features
Voice dialing, Voice commands, Voice recording, TTY/TDD

Regulatory Approval

FCC approval
Date approved: Dec 30, 2018
FCC ID value: R38YL3705A
Measured SAR
Head: 0.25 W/kg
Body: 0.97 W/kg
Simultaneous Transmission: 1.28 W/kg
Wireless Router: 1.28 W/kg

Alternative variants

for Boost Mobile
Colors Medieval gray
LTE Bands 2, 4, 5, 12, 13, 25, 26
TDD Bands 41
FCC OKs Cingular\'s purchase of AT&T Wireless