Oppo A83 vs Samsung i640

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

    A83: 5 g lighter

    A83:
    143 g
    i640:
    148 g
  • Width

    i640: 12.1 mm narrower

    A83:
    73.1 mm
    i640:
    61 mm
  • Screen diagonal

    i640: 3.3 in smaller diagonal

    A83:
    5.7 in
    i640:
    2.4 in
  • Depth

    A83: 9.2 mm thinner

    A83:
    7.7 mm
    i640:
    16.9 mm
  • Height

    i640: 56.1 mm shorter

    A83:
    150.5 mm
    i640:
    94.4 mm
  • Release year

    A83:
    2018
    i640:
    2008

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. A83

    Height:
    150.5 mm +56.1 mm versus i640
    Width:
    73.1 mm +12.1 mm versus i640
    Depth:
    7.7 mm
  2. 2. i640

    Height:
    94.4 mm
    Width:
    61 mm
    Depth:
    16.9 mm +9.2 mm versus A83

Weight

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

  1. 1. A83

    143 g

  2. 2. i640

    148 g

    +5 g versus A83

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. A83

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²
  2. 2. i640

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

A83 has approximately 370.1% more rectangular screen area than i640.

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.

A83: Original memory entry

64/32 GB · 4 GB RAM 32 GB · 3 GB RAM 16 GB · 2 GB RAM

i640: Original memory entry

64 MB RAM · 128 MB ROM

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. A83

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated slot)

2. i640

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (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. A83

    3180 mAh

    +2180 mAh versus i640

  2. 2. i640

    1000 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. A832. i640

Everyday essentials
Everyday essentials — specifications for A83, i640.
SpecificationA83i640
Dimensions (HxWxD)
  • 150.5 Х 73.1 Х 7.7 mm
  • 94.4 Х 61 Х 16.9 mm
Weight
  • 143 g
  • 148 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.7" inch
  • 2.4" inch
Screen resolution
  • 720 x 1440 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64/32 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM 16 GB
  • 2 GB RAM
  • 64 MB RAM
  • 128 MB ROM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3180 mAh
  • Non-removable Li-Ion
  • 1000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 7.1 (Nougat); ColorOS 3.2
  • Microsoft Windows Mobile 6.0 Standard
Chipset
  • Mediatek MT6763T Helio P23 (16 nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for A83, i640.
SpecificationA83i640
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 83.8 cm2
  • 17.8 cm2
Screen format
  • 18:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 76.2%
  • 31.0%
PPI /points per inch/
  • 282 PPI
  • 167 PPI
Camera and Video
Camera and Video — specifications for A83, i640.
SpecificationA83i640
Rear camera, main
  • 13 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • f/2.2
  • 2 MP
Functions
  • LED flash
  • HDR
  • panorama
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • VGA videocall camera
Performance

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

Performance — specifications for A83, i640.
SpecificationA83i640
Processor CPU
  • Octa-core 2.5 GHz Cortex-A53
  • 32-bit Intel XScale PXA270 416 MHz
Graphics processor GPU
  • Mali-G71 MP2
Unknown
Antutu 7 score *
  • 80225
Unknown
GeekBench 4 Single Core *
  • 863
Unknown
GeekBench 4 Multi-Core *
  • 3612
Unknown
General specs
General specs — specifications for A83, i640.
SpecificationA83i640
Release date
  • 2018
  • January
  • 2008
  • February
Colors
  • Gold
  • Black
  • Red
  • Blue
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 150 EUR
Battery life Unknown
  • Stand by time- Up to 250 h Talking time- Up to 6 h
Body build
  • Front glass
  • aluminum body
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for A83, i640.
SpecificationA83i640
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 CDMA 800 & TD-SCDMA - China -3G - HSDPA 850 / 900 / 2100 - India
  • Thailand
  • Pakistan HSDPA 850 / 900 / 1900 / 2100 - China -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 38(2600)
  • 40(2300)
  • 41(2500) - India
  • Thailand LTE band 1(2100)
  • 7(2600)
  • 34(2000)
  • 39(1900)
  • 41(2500) - China (A83t) LTE band 1(2100)
  • 41(2500) - Pakistan
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • WiFi Direct
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • No
USB
  • microUSB 2.0
  • USB On-The-Go
  • 1.1
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 2.0
Harmful irradiation Unknown
  • SAR - 1.18 W/kg (head) 1.12 W/kg (body)
Music and Audio
Music and Audio — specifications for A83, i640.
SpecificationA83i640
Radio
  • No
  • No
Others
  • Active noise cancellation with dedicated mic
  • Jog Dial
Other features
Other features — specifications for A83, i640.
SpecificationA83i640
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • WMV/3GP/MP4 player -WMA/MP3/AAC+ player -Organizer -Pocket Office -Voice memo