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Oppo A31 vs Samsung Gravity SMART

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

    Gravity SMART: 50 g lighter

    A31:
    180 g
    Gravity SMART:
    130 g
  • Width

    Gravity SMART: 16.5 mm narrower

    A31:
    75.5 mm
    Gravity SMART:
    59 mm
  • Screen diagonal

    Gravity SMART: 3.3 in smaller diagonal

    A31:
    6.5 in
    Gravity SMART:
    3.2 in
  • Rear camera layout

    A31:
    Triple
    Gravity SMART:
    Single
  • Depth

    A31: 5.7 mm thinner

    A31:
    8.3 mm
    Gravity SMART:
    14 mm
  • Height

    Gravity SMART: 49.9 mm shorter

    A31:
    163.9 mm
    Gravity SMART:
    114 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 +49.9 mm versus Gravity SMART
    Width:
    75.5 mm +16.5 mm versus Gravity SMART
    Depth:
    8.3 mm
  2. 2. Gravity SMART

    Height:
    114 mm
    Width:
    59 mm
    Depth:
    14 mm +5.7 mm versus A31

Weight

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

  1. 1. A31

    180 g

    +50 g versus Gravity SMART

  2. 2. Gravity SMART

    130 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. Gravity SMART

    Screen diagonal:
    3.2 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    30.5 cm²

A31 has approximately 234.5% more rectangular screen area than Gravity SMART.

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, Gravity SMART, compared at the same storage capacity.
StorageA31Gravity SMART
128 GB 4 GB RAM Unknown
Gravity SMART: Original memory entry

150 MB · 270 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. Gravity SMART

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

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

    +2730 mAh versus Gravity SMART

  2. 2. Gravity SMART

    1500 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. Gravity SMART

Everyday essentials
Everyday essentials — specifications for A31, Gravity SMART.
SpecificationA31Gravity SMART
Dimensions (HxWxD)
  • 163.9 Х 75.5 Х 8.3 mm
  • 114 Х 59 Х 14 mm
Weight
  • 180 g
  • 130 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 6.5" inch
  • 3.2" inch
Screen resolution
  • 720 x 1600 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128GB 4GB RAM
  • 150 MB
  • 270 MB RAM
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 4230 mAh
  • Non-removable Li-Po
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie); ColorOS 6.1
  • Android 2.2 (Froyo)
Chipset
  • Mediatek MT6765V/CB Helio P35 (12nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A31, Gravity SMART.
SpecificationA31Gravity SMART
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 102.0 cm2
  • 30.5 cm2
Screen format
  • 20:9 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 82.4%
  • 45.3%
PPI /points per inch/
  • 270 PPI
  • 180 PPI
Camera and Video
Camera and Video — specifications for A31, Gravity SMART.
SpecificationA31Gravity SMART
Rear camera, main
  • 12 MP
  • Triple
  • 3.15 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)
  • 3.15 MP
Functions
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 320p@14fps
Front camera, selfie
  • 8 MP
  • Single
  • 0 MP,
Specifications
  • 8 MP
  • f/2.0
Unknown
Performance

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

Performance — specifications for A31, Gravity SMART.
SpecificationA31Gravity SMART
Processor CPU
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
  • 800 MHz ARMv6
Graphics processor GPU
  • PowerVR GE8320
Unknown
Antutu 8 score *
  • 105221
Unknown
General specs
General specs — specifications for A31, Gravity SMART.
SpecificationA31Gravity SMART
Release date
  • 2020
  • February 13
  • 2011
  • June
Colors
  • Fantasy White
  • Mystery Black
  • Black/Red
  • Black/Green
  • Lunar Grey
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 180 EUR
  • 170 EUR
Battery life Unknown
  • Stand by time- Up to 364 h Talking time- Up to 5 h 30 min
Body build
  • Glass front
  • plastic back
  • plastic frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A31, Gravity SMART.
SpecificationA31Gravity SMART
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
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
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A
  • HSPA 3.6/0.384 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
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • BDS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 3.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 0.47 W/kg (head) 1.05 W/kg (body) SAR EU - 0.19 W/kg (head)
Music and Audio
Music and Audio — specifications for A31, Gravity SMART.
SpecificationA31Gravity SMART
Radio
  • FM radio
  • No
Others
  • 480 nits typ. brightness
Unknown
Other features
Other features — specifications for A31, Gravity SMART.
SpecificationA31Gravity SMART
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass
  • Sensors Accelerometer
  • proximity - MP4/H.264 player -MP3/WAV/AAC+ player -Organizer -Photo/video editor -Document viewer -Voice memo -Predictive text input (Swype) - For T-Mobile. Also known as Samsung Gravity Touch 2
  • Samsung Smart
  • Samsung GT2
  • Samsung SGH-T589
  • Samsung Galaxy Q