Lava Iris Atom X 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.

  • Width

    Iris Atom X: 12.1 mm narrower

    Iris Atom X:
    63.4 mm
    A31:
    75.5 mm
  • Screen diagonal

    Iris Atom X: 2.5 in smaller diagonal

    Iris Atom X:
    4 in
    A31:
    6.5 in
  • Rear camera layout

    Iris Atom X:
    Single
    A31:
    Triple
  • Depth

    A31: 1.4 mm thinner

    Iris Atom X:
    9.7 mm
    A31:
    8.3 mm
  • Height

    Iris Atom X: 38.4 mm shorter

    Iris Atom X:
    125.5 mm
    A31:
    163.9 mm
  • Release year

    Iris Atom X:
    2015
    A31:
    2020

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. Iris Atom X

    Height:
    125.5 mm
    Width:
    63.4 mm
    Depth:
    9.7 mm +1.4 mm versus A31
    Weight:
    Unknown
  2. 2. A31

    Height:
    163.9 mm +38.4 mm versus Iris Atom X
    Width:
    75.5 mm +12.1 mm versus Iris Atom X
    Depth:
    8.3 mm
    Weight:
    180 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. Iris Atom X

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

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

A31 has approximately 124% more rectangular screen area than Iris Atom X.

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 Iris Atom X, A31, compared at the same storage capacity.
StorageIris Atom XA31
128 GB Unknown 4 GB RAM
Iris Atom X: 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. Iris Atom X

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

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. Iris Atom X

    1400 mAh

  2. 2. A31

    4230 mAh

    +2830 mAh versus Iris Atom X

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. Iris Atom X2. A31

Everyday essentials
Everyday essentials — specifications for Iris Atom X, A31.
SpecificationIris Atom XA31
Dimensions (HxWxD)
  • 125.5 Х 63.4 Х 9.7 mm
  • 163.9 Х 75.5 Х 8.3 mm
Weight
  • 0 g
  • 180 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 4" inch
  • 6.5" inch
Screen resolution
  • 480 x 800 px
  • 720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 256 MB RAM
  • 128GB 4GB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Removable Li-Ion
  • 4230 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 9.0 (Pie); ColorOS 6.1
Chipset Unknown
  • Mediatek MT6765V/CB Helio P35 (12nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Iris Atom X, A31.
SpecificationIris Atom XA31
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 45.5 cm2
  • 102.0 cm2
Screen format
  • 5:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 57.2%
  • 82.4%
PPI /points per inch/
  • 233 PPI
  • 270 PPI
Camera and Video
Camera and Video — specifications for Iris Atom X, A31.
SpecificationIris Atom XA31
Rear camera, main
  • 2 MP
  • Single
  • 12 MP
  • Triple
Camera specs
  • 2 MP
  • 12 MP
  • f/1.8
  • (wide)
  • PDAF -2 MP
  • f/2.4
  • 27mm (macro)
  • 1/5.0''
  • 1.75µm -2 MP
  • (depth)
Functions
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for Iris Atom X, A31.
SpecificationIris Atom XA31
Processor CPU
  • 1.0 GHz
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU Unknown
  • PowerVR GE8320
Antutu 8 score * Unknown
  • 105221
General specs
General specs — specifications for Iris Atom X, A31.
SpecificationIris Atom XA31
Release date
  • 2015
  • November
  • 2020
  • February 13
Colors
  • Black
  • White
  • Fantasy White
  • Mystery Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 180 EUR
Battery life
  • Stand by time- Up to 140 h Talking time- Up to 7 h
Unknown
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Iris Atom X, A31.
SpecificationIris Atom XA31
SIM card
  • Dual SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed
  • HSPA
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • 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 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 2.1
  • EDR
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Iris Atom X, A31.
SpecificationIris Atom XA31
Radio
  • FM radio
  • FM radio
Others Unknown
  • 480 nits typ. brightness
Other features
Other features — specifications for Iris Atom X, A31.
SpecificationIris Atom XA31
Dop
  • Sensors Accelerometer For India
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass