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LG K9 vs Samsung Galaxy A40

What K9 does better (0) and where Galaxy A40 wins (19) — every spec side by side.

LG K9
LG · 2018K9
3.8Score
0 advantages≈ $160
vs
Samsung Galaxy A40
Samsung · 2018Galaxy A40
4.5Score
19 advantages≈ $190
Higher score
3.5Display5.4
2.4Camera5.7
2.2Battery2.5
2.4Features5.0
Dimensions

Size comparison

K9Galaxy A40
73.2 × 146.38.269.2 × 144.47.9
K9Galaxy A40Difference
Height146.3 mm144.4 mm+1.9 mm
Width73.2 mm69.2 mm+4 mm
Thickness8.2 mm7.9 mm+0.3 mm
Weight148 g140 g+8 g

Drawn to the same scale from the official dimensions (front and side).

Why is K9 better than Galaxy A40?

K9 has no measurable advantages in this pair.

Why is Galaxy A40 better than K9?

  1. RAM2 GB vs 4 GB2×
  2. Main camera8 MP vs 16 MP2×
  3. Storage (max)16 GB vs 64 GB4×
  4. Battery capacity2,500 mAh vs 3,100 mAh+24%
  5. OLED panelNo · K9: Yes
  6. NFCNo · K9: Yes
  7. Pixel density294 ppi vs 439 ppi+49%
  8. Storage (base)16 GB vs 64 GB4×
  9. Selfie camera5 MP vs 25 MP5×
  10. CPU frequency1.3 GHz vs 1.8 GHz+38%
  11. CPU cores4 vs 82×
  12. Rear cameras1 vs 22×
Specifications

Side by side

LG K9LG K9≈ $1603.8
Design
Weight148 g140 g
Thickness8.2 mm7.9 mm
Height146.3 mm144.4 mm
Width73.2 mm69.2 mm
Frame—Plastic
Back—Plastic
Glass protection—Corning Gorilla Glass 3
Colours—White, Black, Blue
Display
Screen size5″5.9″
PanelIPSAMOLED
OLED panelNoYes
Resolution (width)720 px1,080 px
Resolution (height)1,280 px2,340 px
Pixel density294 ppi439 ppi
Refresh rate—60 Hz
Peak brightness—548 nits
Measured brightness—544 nits
Screen-to-body ratio—85.5%
Performance
ChipsetQualcomm Snapdragon 210Samsung Exynos 7904
Chip makerQualcommSamsung
Process—14 nm
CPU cores48
CPU frequency1.3 GHz1.8 GHz
GPUAdreno 304Mali G71 MP2
AnTuTu score—208,315
Geekbench 6 (multi-core)—1,530
Memory
RAM2 GB4 GB
Storage (max)16 GB64 GB
Storage (base)16 GB64 GB
Storage type—eMMC 5.1
Memory card slotYesYes
Camera
Main camera8 MP16 MP
Main camera aperture—f/1.7
Rear cameras12
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video—4K
4K video frame rate—30 fps
Selfie camera5 MP25 MP
4K selfie video—No
Battery
Battery capacity2,500 mAh3,100 mAh
Battery type—Li-Ion
Wired charging—15 W
Charged in 30 min—38%
Wireless chargingNoNo
Connectivity
5GNoNo
eSIMNoNo
Dual SIMNoYes
Wi-Fi standardWi-Fi 4Wi-Fi 5
Bluetooth4.25
NFCNoYes
USB—USB Type-C
USB version22
Satellite navigationGPSGPS, GLONASS, BDS
Features
Stereo speakersNoNo
3.5 mm headphone jack—Yes
Fingerprint sensor—Rear
Sensorsproximity, accelerometer, lightproximity, accelerometer, compass, fingerprint
SAR (head)—0.49 W/kg
Software
OS at launchAndroid 7.1 NougatAndroid 9.0
PlatformAndroidAndroid
Interface—One UI
To compare: 0up to 4 models
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