Oppo A31 vs Samsung Galaxy J1

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

    Galaxy J1: 58 g lighter

    A31:
    180 g
    Galaxy J1:
    122 g
  • Width

    Galaxy J1: 7.3 mm narrower

    A31:
    75.5 mm
    Galaxy J1:
    68.2 mm
  • Screen diagonal

    Galaxy J1: 2.2 in smaller diagonal

    A31:
    6.5 in
    Galaxy J1:
    4.3 in
  • Rear camera layout

    A31:
    Triple
    Galaxy J1:
    Single
  • Depth

    A31: 0.6 mm thinner

    A31:
    8.3 mm
    Galaxy J1:
    8.9 mm
  • Height

    Galaxy J1: 34.9 mm shorter

    A31:
    163.9 mm
    Galaxy J1:
    129 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. A31

    Height:
    163.9 mm +34.9 mm versus Galaxy J1
    Width:
    75.5 mm +7.3 mm versus Galaxy J1
    Depth:
    8.3 mm
  2. 2. Galaxy J1

    Height:
    129 mm
    Width:
    68.2 mm
    Depth:
    8.9 mm +0.6 mm versus A31

Weight

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

  1. 1. A31

    180 g

    +58 g versus Galaxy J1

  2. 2. Galaxy J1

    122 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. A31

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²
  2. 2. Galaxy J1

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

A31 has approximately 93.8% more rectangular screen area than Galaxy J1.

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 A31, Galaxy J1, compared at the same storage capacity.
StorageA31Galaxy J1
128 GB 4 GB RAM Unknown
Galaxy J1: 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. A31

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

2. Galaxy J1

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. A31

    4230 mAh

    +2380 mAh versus Galaxy J1

  2. 2. Galaxy J1

    1850 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. A312. Galaxy J1

Everyday essentials
Everyday essentials — specifications for A31, Galaxy J1.
SpecificationA31Galaxy J1
Dimensions (HxWxD)
  • 163.9 Х 75.5 Х 8.3 mm
  • 129 Х 68.2 Х 8.9 mm
Weight
  • 180 g
  • 122 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.5" inch
  • 4.3" inch
Screen resolution
  • 720 x 1600 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128GB 4GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4230 mAh
  • Non-removable Li-Po
  • 1850 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie); ColorOS 6.1
  • Android 4.4.4 (KitKat)
Chipset
  • Mediatek MT6765V/CB Helio P35 (12nm)
  • Spreadtrum
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A31, Galaxy J1.
SpecificationA31Galaxy J1
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 102.0 cm2
  • 52.6 cm2
Screen format
  • 20:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 82.4%
  • 59.8%
PPI /points per inch/
  • 270 PPI
  • 217 PPI
Camera and Video
Camera and Video — specifications for A31, Galaxy J1.
SpecificationA31Galaxy J1
Rear camera, main
  • 12 MP
  • Triple
  • 5 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • (wide)
  • PDAF -2 MP
  • f/2.4
  • 27mm (macro)
  • 1/5.0''
  • 1.75µm -2 MP
  • (depth)
  • 5 MP
  • f/2.2
  • 31mm (standard)
  • AF
Functions
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 2 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 2 MP
Performance

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

Performance — specifications for A31, Galaxy J1.
SpecificationA31Galaxy J1
Processor CPU
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
  • Dual-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • PowerVR GE8320
  • Mali-400
Antutu 7 score * Unknown
  • 12355
Antutu 8 score *
  • 105221
Unknown
General specs
General specs — specifications for A31, Galaxy J1.
SpecificationA31Galaxy J1
Release date
  • 2020
  • February 13
  • 2015
  • January
Colors
  • Fantasy White
  • Mystery Black
  • White
  • Black
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 180 EUR
  • 110 EUR
Battery life Unknown
  • Talking time- Up to 10 h (3G) Music play - Up to 40 h
Body build
  • Glass front
  • plastic back
  • plastic frame
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for A31, Galaxy J1.
SpecificationA31Galaxy J1
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.65 W/kg (head) 0.87 W/kg (body) SAR EU - 0.57 W/kg (head) 0.77 W/kg (body)
Music and Audio
Music and Audio — specifications for A31, Galaxy J1.
SpecificationA31Galaxy J1
Radio
  • FM radio
  • FM radio
  • RDS
  • recording
Others
  • 480 nits typ. brightness
Unknown
Other features
Other features — specifications for A31, Galaxy J1.
SpecificationA31Galaxy J1
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass
  • Sensors Accelerometer
  • proximity - Versions: Samsung J100F
  • J100FN
  • J100H
  • J100H/DD
  • J100H/DS
  • J100M
  • J100MU Also known as Samsung Galaxy J1 Duos with dual-SIM card slots