LG K20 Plus vs LG K30 vs LG K40 – Differences and Similarities

In this post, we are going to do a detailed comparison between LG K20 Plus, K30 & K40. We are going to find out where do they differ and what they share in common.

The biggest question is 2 generations later where does LG K20 Plus stands in comparison to K40.  We are going to find out whether K40 is a true successor to K30 and among the 3 which one should you pick at present.

So Let’s start with the differences and later on we are going to cover the similarities between the 3 –

Difference between LG K20 Plus, LG K30 & LG K40 – MetroPCS / T-Mobile

LG K20 plus vs k30 vs k40
LG K20 Plus, K30 & K40 (Left to Right) – Front
lg k20 vs k30 vs k40
LG K20 Plus, K30 & K40 (Left to Right) – Back

1. Release Date & Price

RELEASE DATE & PRICELG K20 PlusLG K30LG K40
Model NumberMP260 / TP260LM-X410MK / X410TKLM-X420MM
Release DateDecember 2016May 2018March 2019
Current Price Around $70Around $70Around $100

LG releases a K series successor every year. First came K20 Plus in 2017 then K30 in 2018 and the latest entrant in this series is K40 which got released a few months ago in March 2019.

Being mid-ranger they can be grabbed for less than $100 at eBay (new). K20 Plus is now 2 years old so it sells for around $60 to $70. K30 also sells for around the same price. I got my K40 for $90 a month ago.  If you’ll buy the phone directly from the MetroPCS store the price would vary based on an outright purchase or new line connection.

2. Build & Design

BUILD & DESIGNLG K20 Plus LG K30LG K40
Made up ofPlasticPlastic with Metal BackPlastic
Dimensions148.5 x 75.2 x 7.8 mm (5.85 x 2.96 x 0.31 inches)148.5 x 75 x 8.6 mm (5.85 x 2.95 x 0.34)153 x 72 x 8.1 mm ( 6.02” x 2.83” x 0.32”)
Weight140 gm (4.94 oz)168.1 gm (5.93 oz)144.6 gm (5.1 oz)
Removable Battery


Google Assistant Key


LG K40 is the most beautiful phone among the 3. It feels more compact with its 18:9 aspect ratio. Even though is made up of plastic, its shiny surface gives the feel of metal.  Among the 3 only K30 uses metal in its construction. It’s also the heaviest among the 3 and the metal back makes it slippery while holding.

Only K20 Plus has a removable battery and its the slimmest and lightest among the 3.

K40 comes with a dedicated Google Assistant key on its left side.

 

3. Layout

LAYOUTLG K20 Plus LG K30LG K40
Power Button LocationBackBackRight
Speaker Grill Location BackBackBottom
Sim Card / Memory Card Slot LocationUnder the Battery DoorRightLeft

There are few design changes in K40 as compared to its predecessors.

The power button which doubled as a fingerprint sensor is now separated and moved to the right side.

The loudspeaker grille is also moved from the back to the bottom. Now the sound is not blocked when the phone is placed on a table.

4. Screen/Display

SCREEN / DISPLAY LG K20 Plus LG K30LG K40
Size5.3 inches5.3 inches5.7 inches
Resolution / Wallpaper Size1280 x 720 pixels1280 x 720 pixels1440 x 720 pixels
Aspect Ratio16:916:918:9
Pixel Density277 ppi277 ppi282 ppi

The best upgrade on LG K40 is its display with the newer 18:9 aspect ratio. It offers more screen estate in less space. Even though the display size on K40 is increased from 5.3 to 5.7 inches the dimensions remain almost the same when compared to K20 & K30.

The screen resolution is the same HD resolution as found on K20 Plus & K30.

5. Hardware & Benchmark

HARDWARE & BENCHMARKLG K20 Plus LG K30LG K40
Processor / CPU1.4 Ghz Quad Core1.4 Ghz Quad Core1.8 Ghz Quad Core
Chipset 28 nm based, Qualcomm Snapdragon 425 MSM891728 nm based, Qualcomm Snapdragon 425 MSM891714 nm based, Qualcomm Snapdragon SDM450
GPUAdreno 308Adreno 308Adreno 506
Antutu Benchmark Score3681735107
Geekbench Scores

These are the Antutu Benchmark scores of K20 Plus, K30 & K40.

Antutu is showing my LG K30 MetroPCS as LG Premier Pro which is the same model from Tracfone with a different name.

LM-X420 is the model number of LG K40.

These are the Geekbench scores of K20 Plus, K30, and K40 in this same order. Surprisingly, the Geekbench Scores of K20 Plus are higher than that of K30.

K20 Plus and K30 share the same hardware yet the Antutu Benchmark scores are far apart. K30 wins here by a good margin. The Geekbench scores are almost identical.

In K40 we’ve seen a jump in terms of hardware specs. Now it shares the same processor as found in LG Stylo 4. We can also call it a Mini Stylo 4 as it shares many of its features such as notification LED and NFC.

You can check the hardware specs of 3 phones in the above table along with the benchmark scores.

 4. Software, Connectivity & Extra Features

SOFTWARE, CONNECTIVITY & EXTRA FEATURESLG K20 Plus LG K30LG K40
Android VersionAndroid Nougat 7.0Android Oreo 8.1Android Pie 9.0
NFC / Android Pay / Android Beam


LED Notification Light


3D Virtual Surround via Headphone


Mini View / One-Handed Mode


As discussed before, K40 comes with NFC / Android Pay & LED Notification Light. These features are missing from K20 Plus & K30.

It has the recent Android Version 9.0 (Pie) similar to LG Stylo 5. Even Stylo 4 has Android Oreo as of now.

As K40 has a bigger screen than K20 & K30 it comes with Mini View feature which shrinks the screen for one-handed use.

7. Camera

CAMERALG K20 Plus LG K30LG K40
REAR   
Phase Detection Auto Focus (PDAF)

Manual Mode / Controls

QLens (Visual Shopping)
Portrait Mode with Background Blur Control
FRONT
Selfie Flash

LG K20 Plus has the most outdated Camera among the 3.  It lacks PDAF (Phase detection autofocus) as well as Manual Controls ( Manual Focus & ISO control). These features are present in K30 & K40.

K40 also has Selfie Flash. Even LG Stylo 4 lacks a Front Camera Flash.

Even though all 3 share the same image resolution which is 13 MP, K40 has an improved camera with the best picture quality among the 3.  They all can record videos up to 1080p @ 30fps. K40 should have offered at least a 60 fps video recording frame rate.

8. Battery

BATTERYLG K20 Plus LG K30LG K40
Capacity2700 mAh2880 mAh2890 mAh
Battery Life / Talk TimeUp to 14 hrsUp to 13 hrs & 40 minsUp to 12 hrs
Standby Time Up to 17 daysUp to 10 days & 12 hrsUp to 19 days & 14 hrs

The battery capacity of all the 3 phones is almost the same. I’ll perform a battery drain test later to get the actual battery life in real-world usage.

K30 & K40 has a Maximum Battery Saver mode which claims to almost double the battery life as compared to normal mode.

 9. Root & Custom ROM Status

Root & Custom ROM StatusLG K20 Plus LG K30LG K40
Root Compatible


The Bootloader can be unlocked


Custom ROM Compatible


Out of the 3, Only K20 Plus can be rooted.  K30 & K40 have a locked bootloader with no way to unlock it as of now.

As a result, only K20 Plus can have Custom ROMs such as Lineage OS, AICP, Resurrection Remix & Incipient OS.

 Similarities between LG K20 Plus, K30 & K40

Similarities between the 3LG K40, K30 & K20 Plus
BODY & DESIGN
Expandable Memory / Micro SD Card SlotUp to 2TB
Water Resistant / Waterproof
DISPLAY
Display TechnologyIPS LCD
Curved Edge / 2.5D Glass
NETWORK
Sim SizeNano
GSM / CDMAGSM
Wifi Calling
SENSORS
Proximity Sensor
Ambient Light Sensor
Accelerometer
Gyroscope/ VR Compatible
Magnetometer / Digital Compass
Fingerprint Sensor
CONNECTIVITY
USB Port TypeMicro USB 2.0
Headphone Jack3.5 mm
Bluetooth
Wifi
Wifi Hotspot / Tethering
GPS
USB OTG Compatible
IR Blaster
MHL / Slimport Compatible
Screen Mirroring / Miracast / Screen Share
ADDITIONAL FEATURES
FM Radio / NextRadio
Face Recognition / Face Unlock
Flashlight
Google Assistant
Multi-Window / Split Screen Support
Fast Charging / Quick Charge Compatible
Wireless Charging Support / Qi-Enabled
MEMORY
Internal Storage Capacity / ROM32 GB
RAM / Random Access Memory2 GB
CAMERA
REAR
Megapixels / Image Resolution13 MP
AutofocusYes
FlashSingle LED
Camera ZoomUp to 4x, Digital Zoom
Video Resolution1080p @ 30fps
HDR
Face Detection
Slow Motion
Time Lapse
Video Stabilization
FRONT
Image Resolution / Megapixels5 MP
Video Resolution1080p @ 30fps

The above table shows those features which are common among K20, K30 & K40. It also includes those features which are missing in all the 3 phones.

Conclusion

From the above comparison, we can easily conclude that K40 is the best among the 3. For a little higher price it offers all the latest features. In the nutshell, K40 beats K30 & K20 Plus in these areas –

  • Premium Look
  • More Compact with its 18:9 aspect ratio
  • Dedicated Google Assistant Key
  • Better sound output with bottom-mounted Speaker
  • Bigger Display
  • Android Pie 9.0
  • NFC
  • LED Notification Light
  • 1.8 GHz Quad-Core CPU
  • Selfie Flash

 

For any query or feedback please leave a comment below.

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