LG K40 vs Xiaomi Redmi 8A Dual

Compare recorded specifications, size and practical differences.

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Key differences

Calculated from recorded specifications using minimum difference thresholds. These are differences, not an overall ranking. For three phones, numeric highlights compare the two extremes.

  • Weight

    K40: 38 g lighter

    K40:
    150 g
    Redmi 8A Dual:
    188 g
  • Width

    K40: 3.5 mm narrower

    K40:
    71.9 mm
    Redmi 8A Dual:
    75.4 mm
  • Screen diagonal

    K40: 0.52 in smaller diagonal

    K40:
    5.7 in
    Redmi 8A Dual:
    6.22 in
  • Chipset

    K40:
    Mediatek MT6762 Helio P22 (12 nm)
    Redmi 8A Dual:
    Qualcomm SDM439 Snapdragon 439 (12 nm)
  • Rear camera layout

    K40:
    Single
    Redmi 8A Dual:
    Dual
  • Depth

    K40: 1.1 mm thinner

    K40:
    8.3 mm
    Redmi 8A Dual:
    9.4 mm

Physical size

Relative size, not calibrated actual size. Front and side outlines share one scale and a bottom baseline. Generic outlines use recorded body dimensions, excluding camera bumps.

  1. 1. K40

    Height:
    153 mm
    Width:
    71.9 mm
    Depth:
    8.3 mm
  2. 2. Redmi 8A Dual

    Height:
    156.5 mm +3.5 mm versus K40
    Width:
    75.4 mm +3.5 mm versus K40
    Depth:
    9.4 mm +1.1 mm versus K40

Weight

Bars start at zero and share a scale within this chart.

  1. 1. K40

    150 g

  2. 2. Redmi 8A Dual

    188 g

    +38 g versus K40

Screen size

Approximate rectangular screens calculated from recorded diagonal and aspect ratio at one relative scale. Rounded corners and cutouts are not subtracted. These are not phone outlines or calibrated actual sizes.

  1. 1. K40

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²
  2. 2. Redmi 8A Dual

    Screen diagonal:
    6.22 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    96.6 cm²

Redmi 8A Dual has approximately 15.2% more rectangular screen area than K40.

Memory variants

Each row compares the same storage capacity. Cells show recorded RAM alternatives, not combined maxima. Not recorded does not mean unavailable in every market.

Recorded RAM for K40, Redmi 8A Dual, compared at the same storage capacity.
StorageK40Redmi 8A Dual
32 GB Unknown 2 / 3 GB RAM Alternative RAM configurations
K40: Original memory entry

32 GB · 2/3 GB RAM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. K40

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB (dedicated slot)

2. Redmi 8A Dual

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

Recorded battery capacity

Bars start at zero and share a scale within this chart.

  1. 1. K40

    3000 mAh

  2. 2. Redmi 8A Dual

    5000 mAh

    +2000 mAh versus K40

Specifications

Open a section for more detail. On narrow screens, swipe sideways or use Left/Right arrow keys while the table is focused. Unknown means missing data, not No. Recorded zero values are shown as recorded.

1. K402. Redmi 8A Dual

Everyday essentials
Everyday essentials — specifications for K40, Redmi 8A Dual.
SpecificationK40Redmi 8A Dual
Dimensions (HxWxD)
  • 153 Х 71.9 Х 8.3 mm
  • 156.5 Х 75.4 Х 9.4 mm
Weight
  • 150 g
  • 188 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.7" inch
  • 6.22" inch
Screen resolution
  • 720 x 1440 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 2/3 GB RAM
  • 32GB 2GB RAM
  • 32GB 3GB RAM
Memory card support
  • microSD
  • up to 512 GB (dedicated slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Ion
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8.1 (Oreo)
  • Android 9.0 (Pie); MIUI 11
Chipset
  • Mediatek MT6762 Helio P22 (12 nm)
  • Qualcomm SDM439 Snapdragon 439 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for K40, Redmi 8A Dual.
SpecificationK40Redmi 8A Dual
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.8 cm2
  • 96.6 cm2
Screen format
  • 18:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 76.2%
  • 81.8%
PPI /points per inch/
  • 282 PPI
  • 270 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for K40, Redmi 8A Dual.
SpecificationK40Redmi 8A Dual
Rear camera, main
  • 16 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 16 MP
  • f/2.0
  • PDAF
  • 13 MP
  • f/2.2
  • (wide)
  • 1/3.1''
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • (depth)
Functions
  • LED flash
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm
Performance

Scores marked * are historical catalogue entries. Test conditions are unspecified; no new testing is implied.

Performance — specifications for K40, Redmi 8A Dual.
SpecificationK40Redmi 8A Dual
Processor CPU
  • Octa-core 2.0 GHz Cortex-A53
  • Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
Graphics processor GPU
  • PowerVR GE8320
  • Adreno 505
Antutu 7 score *
  • 75203
Unknown
GeekBench 4 Single Core * Unknown
  • 864
GeekBench 4 Multi-Core * Unknown
  • 3669
Antutu 8 score * Unknown
  • 95326
General specs
General specs — specifications for K40, Redmi 8A Dual.
SpecificationK40Redmi 8A Dual
Release date
  • 2019
  • February
  • 2020
  • February 11
Colors
  • Black
  • Platinum
  • Blue
  • Sky White
  • Sea Blue
  • Midnight Grey
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 80 EUR
Body build
  • Front glass
  • plastic body
  • Glass front (Gorilla Glass 5)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for K40, Redmi 8A Dual.
SpecificationK40Redmi 8A Dual
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • LTE-A
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for K40, Redmi 8A Dual.
SpecificationK40Redmi 8A Dual
Radio
  • FM radio
  • FM radio
  • built-in antenna
Others
  • DTS: X Surround Sound -Active noise cancellation with dedicated mic
  • 400 nits typ. brightness
Other features
Other features — specifications for K40, Redmi 8A Dual.
SpecificationK40Redmi 8A Dual
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - MIL-STD-810G compliant - Also known as LG K12+
  • LG K12 Plus
  • LG X4 (2019)
  • Sensors Accelerometer
  • proximity
  • compass - Fast battery charging 18W -Power bank/Reverse charging - Splash resistant