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Lava A51 vs Xolo A42

Compare recorded specifications, size and practical differences.

+ Add a third phone

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.

  • Width

    A42: 2.5 mm narrower

    A51:
    66 mm
    A42:
    63.5 mm
  • Screen diagonal

    A42: 0.5 in smaller diagonal

    A51:
    4.5 in
    A42:
    4 in
  • Height

    A42: 11.5 mm shorter

    A51:
    136 mm
    A42:
    124.5 mm
  • Release year

    A51:
    2016
    A42:
    2014

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. A51

    Height:
    136 mm +11.5 mm versus A42
    Width:
    66 mm +2.5 mm versus A42
    Depth:
    9.9 mm
    Weight:
    Unknown
  2. 2. A42

    Height:
    124.5 mm
    Width:
    63.5 mm
    Depth:
    10.2 mm
    Weight:
    Unknown

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. A51

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. A42

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

A51 has approximately 22.6% more rectangular screen area than A42.

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.

A51: Original memory entry

8 GB · 512 MB RAM

A42: Original memory entry

4 GB · 512 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. A51

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

2. A42

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. A51

    1750 mAh

    +350 mAh versus A42

  2. 2. A42

    1400 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. A512. A42

Everyday essentials
Everyday essentials — specifications for A51, A42.
SpecificationA51A42
Dimensions (HxWxD)
  • 136 Х 66 Х 9.9 mm
  • 124.5 Х 63.5 Х 10.2 mm
Weight
  • 0 g
  • 0 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4.5" inch
  • 4" inch
Screen resolution
  • 480 x 854 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 512 MB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1750 mAh
  • Removable Li-Ion
  • 1400 mAh
  • Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 4.2.2 (Jelly Bean)
Chipset
  • Spreadtrum SC7731C
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A51, A42.
SpecificationA51A42
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 55.8 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 62.2%
  • 57.6%
PPI /points per inch/
  • 218 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for A51, A42.
SpecificationA51A42
Rear camera, main
  • 5 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 5 MP
  • 5 MP
Functions
  • LED flash
  • panorama
Unknown
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 1.3 MP
  • Single
Specifications
  • VGA
  • 1.3 MP
Performance
Performance — specifications for A51, A42.
SpecificationA51A42
Processor CPU
  • Quad-core 1.2 GHz
  • Dual-core 1.3 GHz
General specs
General specs — specifications for A51, A42.
SpecificationA51A42
Release date
  • 2016
  • October
  • 2014
  • July
Colors
  • Gray
  • Black
  • Gold
  • Yellow
  • Blue
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 80 EUR
Battery life
  • Stand by time- Up to 420 h (3G) Talking time- Up to 10 h 30 min (3G)
  • Stand by time- Up to 180 h Talking time- Up to 5 h
Communication and Connectivity
Communication and Connectivity — specifications for A51, A42.
SpecificationA51A42
SIM card
  • Dual SIM
  • Dual SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
Speed
  • HSPA
  • HSPA
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB
Bluetooth
  • 2.1
  • EDR
  • 2.0
Harmful irradiation Unknown
  • SAR EU - 0.69 W/kg (head) 0.71 W/kg (body)
Music and Audio
Music and Audio — specifications for A51, A42.
SpecificationA51A42
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for A51, A42.
SpecificationA51A42
Dop
  • Sensors Accelerometer For India
  • Sensors Accelerometer
  • proximity