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LG K40 vs Plum Sync 4.0b

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

    Sync 4.0b: 65.2 g lighter

    K40:
    150 g
    Sync 4.0b:
    84.8 g
  • Width

    Sync 4.0b: 8.4 mm narrower

    K40:
    71.9 mm
    Sync 4.0b:
    63.5 mm
  • Screen diagonal

    Sync 4.0b: 1.7 in smaller diagonal

    K40:
    5.7 in
    Sync 4.0b:
    4 in
  • Chipset

    K40:
    Mediatek MT6762 Helio P22 (12 nm)
    Sync 4.0b:
    Mediatek MT6572 (28 nm)
  • Depth

    K40: 2.1 mm thinner

    K40:
    8.3 mm
    Sync 4.0b:
    10.4 mm
  • Height

    Sync 4.0b: 28.5 mm shorter

    K40:
    153 mm
    Sync 4.0b:
    124.5 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 +28.5 mm versus Sync 4.0b
    Width:
    71.9 mm +8.4 mm versus Sync 4.0b
    Depth:
    8.3 mm
  2. 2. Sync 4.0b

    Height:
    124.5 mm
    Width:
    63.5 mm
    Depth:
    10.4 mm +2.1 mm versus K40

Weight

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

  1. 1. K40

    150 g

    +65.2 g versus Sync 4.0b

  2. 2. Sync 4.0b

    84.8 g

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. Sync 4.0b

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

K40 has approximately 84.1% more rectangular screen area than Sync 4.0b.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

K40: Original memory entry

32 GB · 2/3 GB RAM

Sync 4.0b: Original memory entry

512 MB · 256 MB 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. Sync 4.0b

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB

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

    +1700 mAh versus Sync 4.0b

  2. 2. Sync 4.0b

    1300 mAh

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. Sync 4.0b

Everyday essentials
Everyday essentials — specifications for K40, Sync 4.0b.
SpecificationK40Sync 4.0b
Dimensions (HxWxD)
  • 153 Х 71.9 Х 8.3 mm
  • 124.5 Х 63.5 Х 10.4 mm
Weight
  • 150 g
  • 84.8 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.7" inch
  • 4" inch
Screen resolution
  • 720 x 1440 px
  • 480 x 800 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
  • 512 MB
  • 256 MB RAM
Memory card support
  • microSD
  • up to 512 GB (dedicated slot)
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Android 4.4 (KitKat)
Chipset
  • Mediatek MT6762 Helio P22 (12 nm)
  • Mediatek MT6572 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for K40, Sync 4.0b.
SpecificationK40Sync 4.0b
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.8 cm2
  • 45.5 cm2
Screen format
  • 18:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 76.2%
  • 57.6%
PPI /points per inch/
  • 282 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for K40, Sync 4.0b.
SpecificationK40Sync 4.0b
Rear camera, main
  • 16 MP
  • Single
  • 1.3 MP
  • Single
Camera specs
  • 16 MP
  • f/2.0
  • PDAF
  • 1.3 MP
Functions
  • LED flash
Unknown
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 1.3 MP
Performance

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

Performance — specifications for K40, Sync 4.0b.
SpecificationK40Sync 4.0b
Processor CPU
  • Octa-core 2.0 GHz Cortex-A53
  • Dual-core 1.0 GHz Cortex-A7
Graphics processor GPU
  • PowerVR GE8320
  • Mali-400
Antutu 7 score *
  • 75203
Unknown
General specs
General specs — specifications for K40, Sync 4.0b.
SpecificationK40Sync 4.0b
Release date
  • 2019
  • February
  • 2015
  • June
Colors
  • Black
  • Platinum
  • Blue
  • Black
  • White
  • Red
  • Blue
Battery life Unknown
  • Stand by time- Up to 180 h Talking time- Up to 2 h 30 min
Body build
  • Front glass
  • plastic body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for K40, Sync 4.0b.
SpecificationK40Sync 4.0b
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM
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
Unknown
Speed
  • HSPA
  • LTE-A
Unknown
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
Music and Audio
Music and Audio — specifications for K40, Sync 4.0b.
SpecificationK40Sync 4.0b
Radio
  • FM radio
  • FM radio
Others
  • DTS: X Surround Sound -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for K40, Sync 4.0b.
SpecificationK40Sync 4.0b
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - MIL-STD-810G compliant - Also known as LG K12+
  • LG K12 Plus
  • LG X4 (2019)
  • Sensors Accelerometer Flashlight Also known as Plum Sync 4.0b X400