LG KU2100 vs Oppo A31

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

    KU2100: 59 g lighter

    KU2100:
    121 g
    A31:
    180 g
  • Width

    KU2100: 22.1 mm narrower

    KU2100:
    53.4 mm
    A31:
    75.5 mm
  • Screen diagonal

    KU2100: 3.5 in smaller diagonal

    KU2100:
    3 in
    A31:
    6.5 in
  • Rear camera layout

    KU2100:
    Single
    A31:
    Triple
  • Depth

    A31: 4.6 mm thinner

    KU2100:
    12.9 mm
    A31:
    8.3 mm
  • Height

    KU2100: 54.1 mm shorter

    KU2100:
    109.8 mm
    A31:
    163.9 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. KU2100

    Height:
    109.8 mm
    Width:
    53.4 mm
    Depth:
    12.9 mm +4.6 mm versus A31
  2. 2. A31

    Height:
    163.9 mm +54.1 mm versus KU2100
    Width:
    75.5 mm +22.1 mm versus KU2100
    Depth:
    8.3 mm

Weight

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

  1. 1. KU2100

    121 g

  2. 2. A31

    180 g

    +59 g versus KU2100

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. KU2100

    Screen diagonal:
    3 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    25.6 cm²
  2. 2. A31

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²

A31 has approximately 298.2% more rectangular screen area than KU2100.

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 KU2100, A31, compared at the same storage capacity.
StorageKU2100A31
128 GB Unknown 4 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. KU2100

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 GB (dedicated slot)

2. A31

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. KU2100

    1500 mAh

  2. 2. A31

    4230 mAh

    +2730 mAh versus KU2100

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. KU21002. A31

Everyday essentials
Everyday essentials — specifications for KU2100, A31.
SpecificationKU2100A31
Dimensions (HxWxD)
  • 109.8 Х 53.4 Х 12.9 mm
  • 163.9 Х 75.5 Х 8.3 mm
Weight
  • 121 g
  • 180 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3" inch
  • 6.5" inch
Screen resolution
  • 240 x 400 px
  • 720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded. Unknown
  • 128GB 4GB RAM
Memory card support
  • microSD
  • up to 16 GB (dedicated slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 4230 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.5 Professional
  • Android 9.0 (Pie); ColorOS 6.1
Chipset
  • Qualcomm MSM7201A
  • Mediatek MT6765V/CB Helio P35 (12nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for KU2100, A31.
SpecificationKU2100A31
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 25.6 cm2
  • 102.0 cm2
Screen format
  • 5:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 43.7%
  • 82.4%
PPI /points per inch/
  • 155 PPI
  • 270 PPI
Camera and Video
Camera and Video — specifications for KU2100, A31.
SpecificationKU2100A31
Rear camera, main
  • 5 MP
  • Single
  • 12 MP
  • Triple
Camera specs
  • 5 MP
  • AF
  • 12 MP
  • f/1.8
  • (wide)
  • PDAF -2 MP
  • f/2.4
  • 27mm (macro)
  • 1/5.0''
  • 1.75µm -2 MP
  • (depth)
Functions Unknown
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • Videocall camera
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for KU2100, A31.
SpecificationKU2100A31
Processor CPU
  • 528 MHz ARM 11
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 130
  • PowerVR GE8320
Antutu 8 score * Unknown
  • 105221
General specs
General specs — specifications for KU2100, A31.
SpecificationKU2100A31
Release date
  • 2010
  • January
  • 2020
  • February 13
Colors
  • Black
  • Fantasy White
  • Mystery Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 110 EUR
  • 180 EUR
Battery life
  • Stand by time- Up to 300 h Talking time- Up to 5 h
Unknown
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for KU2100, A31.
SpecificationKU2100A31
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed
  • HSPA 7.2/2 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • BDS
USB
  • microUSB
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 2.1
  • A2DP
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for KU2100, A31.
SpecificationKU2100A31
Radio
  • No
  • FM radio
Others Unknown
  • 480 nits typ. brightness
Other features
Other features — specifications for KU2100, A31.
SpecificationKU2100A31
Dop
  • Sensors Accelerometer T-DMB broadcasting -MP4/H.264/WMV player -MP3/WAV/eAAC+/WMA player -Organizer -Pocket Office -Voice memo -Predictive text input For South Korea Also known as LG-SU210 or LU2100
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass