LG K40 vs vivo Y55s

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

    Y55s: 8 g lighter

    K40:
    150 g
    Y55s:
    142 g
  • Width

    K40: 1 mm narrower

    K40:
    71.9 mm
    Y55s:
    72.9 mm
  • Screen diagonal

    Y55s: 0.5 in smaller diagonal

    K40:
    5.7 in
    Y55s:
    5.2 in
  • Chipset

    K40:
    Mediatek MT6762 Helio P22 (12 nm)
    Y55s:
    Qualcomm MSM8917 Snapdragon 425 (28 nm)
  • Depth

    Y55s: 0.8 mm thinner

    K40:
    8.3 mm
    Y55s:
    7.5 mm
  • Height

    Y55s: 5.1 mm shorter

    K40:
    153 mm
    Y55s:
    147.9 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 +5.1 mm versus Y55s
    Width:
    71.9 mm
    Depth:
    8.3 mm +0.8 mm versus Y55s
  2. 2. Y55s

    Height:
    147.9 mm
    Width:
    72.9 mm +1 mm versus K40
    Depth:
    7.5 mm

Weight

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

  1. 1. K40

    150 g

    +8 g versus Y55s

  2. 2. Y55s

    142 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. Y55s

    Screen diagonal:
    5.2 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    74.5 cm²

K40 has approximately 12.5% more rectangular screen area than Y55s.

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

Y55s: Original memory entry

16 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. Y55s

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (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

    +270 mAh versus Y55s

  2. 2. Y55s

    2730 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. Y55s

Everyday essentials
Everyday essentials — specifications for K40, Y55s.
SpecificationK40Y55s
Dimensions (HxWxD)
  • 153 Х 71.9 Х 8.3 mm
  • 147.9 Х 72.9 Х 7.5 mm
Weight
  • 150 g
  • 142 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.7" inch
  • 5.2" inch
Screen resolution
  • 720 x 1440 px
  • 720 x 1280 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
  • 16 GB
  • 2/3 GB RAM
Memory card support
  • microSD
  • up to 512 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3000 mAh
  • Non-removable Li-Ion
  • 2730 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Android 6 (Marshmallow); Funtouch 3
Chipset
  • Mediatek MT6762 Helio P22 (12 nm)
  • Qualcomm MSM8917 Snapdragon 425 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for K40, Y55s.
SpecificationK40Y55s
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.8 cm2
  • 74.5 cm2
Screen format
  • 18:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 76.2%
  • 69.1%
PPI /points per inch/
  • 282 PPI
  • 282 PPI
Camera and Video
Camera and Video — specifications for K40, Y55s.
SpecificationK40Y55s
Rear camera, main
  • 16 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 16 MP
  • f/2.0
  • PDAF
  • 13 MP
  • AF
  • f/2.2
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for K40, Y55s.
SpecificationK40Y55s
Processor CPU
  • Octa-core 2.0 GHz Cortex-A53
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • PowerVR GE8320
  • Adreno 306
Antutu 7 score *
  • 75203
  • 32622
GeekBench 4 Single Core * Unknown
  • 648
GeekBench 4 Multi-Core * Unknown
  • 1831
GeekBench 4 RenderScript * Unknown
  • 1230
General specs
General specs — specifications for K40, Y55s.
SpecificationK40Y55s
Release date
  • 2019
  • February
  • 2017
  • February
Colors
  • Black
  • Platinum
  • Blue
  • Crown Gold
  • Rose Gold
  • Space Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 200 EUR
Body build
  • Front glass
  • plastic body
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for K40, Y55s.
SpecificationK40Y55s
SIM card
  • Single SIM (Nano-SIM)Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM/ Micro-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 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 40(2300) - Malaysia
  • Vietnam LTE band 1(2100)
  • 8(900) - Thailand
  • Indonesia
  • Myanmar
  • Philippines LTE band 1(2100)
  • 40(2300) - India
Speed
  • HSPA
  • LTE-A
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
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
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for K40, Y55s.
SpecificationK40Y55s
Radio
  • FM radio
  • FM radio
Others
  • DTS: X Surround Sound -Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for K40, Y55s.
SpecificationK40Y55s
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