Samsung Galaxy S9+ vs LG K51 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.

9.0
Samsung Galaxy S9+
Samsung Galaxy S9+ LG K51
Released · Mar 16, 2018
Released · May 06, 2020
6.2-inch · 2960x1440px
6.5-inch · 1560x720px
Dual camera
Triple camera
6GB · 64GB
3GB · 32GB
3500 mAh
4000 mAh

Availability

Officially announced
Feb 25, 2018 May 06, 2020
Prices (MSRP)
6GB/64GB - $840 $200

Design

Dimensions
6.22 x 2.91 x 0.33 inches
158.1 x 73.8 x 8.5 mm
6.57 x 3.07 x 0.33 inches
166.9 x 77.9 x 8.4 mm
Weight
6.67 oz / 189.0 g 7.17 oz / 203.4 g
Materials
Back: Glass (Corning Gorilla Glass 5)
Frame: Aluminum
Resistance
Water, Dust; IP68 Yes; MIL-STD-810 certified
Biometrics
Iris scanner, 2D Face unlock, Fingerprint (touch) Fingerprint (touch)
Features
Notification light
Keys
Left: Volume control, Other; Right: Lock/Unlock key Left: Volume control; Right: Lock/Unlock key
Colors
Midnight black, Coral blue, Titanium gray, Lilac purple, Burgundy red, Sunrise gold, Ice blue, Polaris blue Titan gray

Display

Size
6.2-inch, 83.68% screen-to-body 6.5-inch, 79.70% screen-to-body
Type
Super AMOLED, HDR IPS LCD
Resolution
2960x1440px, 18.5:9 ratio, 531 PPI 1560x720px, 19.5:9 ratio, 264 PPI
Protection
Corning Gorilla Glass 5
PhoneArena Display Test
Bright Max (20% APL)
Untested Untested
Bright Min
1 (Excellent) Untested

Hardware

System chip
Snapdragon 845 SDM845 (10 nm) MediaTek Helio P22 MT6762 (12 nm)
Processor
Octa-core
Kryo 385
Octa-core
2000 MHz
Arm Cortex-A53
GPU
Adreno 630 IMG PowerVR GE8320
Memory
6GB (LPDDR4)/64GB
6GB/128GB
6GB/256GB
3GB/32GB
Storage expansion
microSDXC up to 400 GB microSDXC up to 2000 GB
OS
Android (10, 9.0 Pie, 8.0 Oreo) Android (10)

Battery

Type
3500 mAh, Li - Ion 4000 mAh, Li - Ion
Charging
Qualcomm Quick Charge 2.0, Samsung Adaptive Fast Charging
Qi and Powermat wireless charging

Camera

Rear
Dual camera Triple camera
Main camera
12 MP (OIS, PDAF)
Aperture size: F1.5/F2.4
Focal length: 26 mm
Sensor size: 1/2.55"
Pixel size: 1.4 μm
13 MP (PDAF)
Aperture size: F1.8
Sensor size: 1/3"
Pixel size: 1.12 μm
Second camera
12 MP (Telephoto, OIS, Autofocus)
Optical zoom: 2.0x
Aperture size: F2.4
Focal Length: 52 mm
Sensor size: 1/3.6"
Pixel size: 1 μm
5 MP (Ultra-wide)
Aperture size: F2.2
Sensor size: 1/5"
Pixel size: 1.12 μm
Third camera
2 MP (Depth information)
Sensor size: 1/5"
Pixel size: 1.75 μm
Flash
LED LED
Video recording
4K UHD (60 fps), 1080p (240 fps), 720p (960 fps)
HDR, Time-lapse video, Hyperlapse, Continuous autofocus, Object tracking, Picture-taking during video recording, EIS, Video calling, Video sharing
1080p
Picture-taking during video recording
Front
8 MP (Autofocus, HDR)
Video capture: QHD (30 fps)
13 MP
Video capture: 1080p

Connectivity & Features

Bluetooth
5.0 5.0
WLAN
a,b,g,n,ac,dual-band
MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
a,b,g,n,ac,dual-band
Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac
USB
Type-C, USB 3.1 Type-C, USB 2.0
Sensors
Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer, Ambient light sensor, Proximity sensor Accelerometer, Gyroscope, Compass, Ambient light sensor, Proximity sensor
Hearing aid compatible
M3/T3
Location
GPS, A-GPS, Glonass, Galileo, BeiDou GPS, A-GPS, Cell ID, Wi-Fi positioning
Other
NFC, ANT+

Multimedia

Headphones
3.5mm jack 3.5mm jack
Speakers
Earpiece, Multiple speakers Earpiece, Multiple speakers
Features
32-Bit DAC, Dolby Atmos, aptX-HD DTS:X Virtual Surround
Screen mirroring
Wireless screen share
Radio
FM
Additional microphone(s)
Noise cancellation

Cellular

4G (FDD) Bands
1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 66, 71 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 66, 71
4G (TDD) Bands
38, 39, 40, 41, 46 41
3G Bands
1, 2, 4, 5, 8 1, 2, 4, 5, 8
Data Speed
LTE-A Pro Cat 18 (1200/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA LTE-A Cat 6 (300/50 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
SIM type
Nano SIM Nano SIM
HD Voice
Yes
VoLTE
Yes

Regulatory Approval

FCC approval
Date approved: Jan 11, 2018
FCC ID value: A3LSMG965U
Date approved: Jun 16, 2020
FCC ID value: ZNFL555DL
Measured SAR
Head: 0.36 W/kg
Body: 0.79 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.04 W/kg
Phablet: 3.94 W/kg
Head: 0.66 W/kg
Body: 1.20 W/kg
Simultaneous Transmission: 1.59 W/kg
Wireless Router: 1.27 W/kg
Phablet: 3.96 W/kg

Alternative variants

International version
System chip Samsung Exynos 9 9810 (10 nm)
Processor Octa-core
2900 MHz
Exynos M3 and ARM Cortex-A55
GPU Mali-G72 MP18
FCC approval Date approved: Dec 27, 2017
FCC ID value: A3LSMG965F
Measured SAR Head: 0.23 W/kg
Body: 0.58 W/kg
Simultaneous Transmission: 1.46 W/kg
Wireless Router: 1.05 W/kg
Phablet: 3.68 W/kg
for Boost Mobile
OS Android (9.0 Pie)
4G (FDD) Bands 2, 4, 5, 12, 13, 25, 26, 66, 71
with Dual SIM
System chip Samsung Exynos 9 9810 (10 nm)
Processor Octa-core
2900 MHz
Exynos M3 and ARM Cortex-A55
GPU Mali-G72 MP18
Dual SIM Yes
for Verizon
4G (FDD) Bands 2, 3, 4, 5, 7, 12, 13, 20, 66
Prices (MSRP) $170
with 256 GB storage
Memory 256GB
Prices (MSRP) $940
for Metro
4G (FDD) Bands 1, 2, 3, 4, 5, 7, 12, 13, 20, 25, 26, 66, 71
4G (TDD) Bands 38, 41
3G Bands 5, 4, 2, 1
with 128 GB storage
Memory 128GB
Prices (MSRP) $890
FCC OKs Cingular\'s purchase of AT&T Wireless