Haier G51 vs Oppo A83

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: 12 g lighter

    G51:
    155 g
    A83:
    143 g
  • Screen diagonal

    G51: 0.7 in smaller diagonal

    G51:
    5 in
    A83:
    5.7 in
  • Chipset

    G51:
    Mediatek MT6737M (28 nm)
    A83:
    Mediatek MT6763T Helio P23 (16 nm)
  • Depth

    A83: 1.4 mm thinner

    G51:
    9.1 mm
    A83:
    7.7 mm
  • Height

    G51: 7.9 mm shorter

    G51:
    142.6 mm
    A83:
    150.5 mm
  • Release year

    G51:
    2017
    A83:
    2018

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. G51

    Height:
    142.6 mm
    Width:
    72.9 mm
    Depth:
    9.1 mm +1.4 mm versus A83
  2. 2. A83

    Height:
    150.5 mm +7.9 mm versus G51
    Width:
    73.1 mm
    Depth:
    7.7 mm

Weight

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

  1. 1. G51

    155 g

    +12 g versus A83

  2. 2. A83

    143 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. G51

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. A83

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

A83 has approximately 21.7% more rectangular screen area than G51.

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 G51, A83, compared at the same storage capacity.
StorageG51A83
8 GB 1 GB RAM Unknown
A83: Original memory entry

64/32 GB · 4 GB RAM 32 GB · 3 GB RAM 16 GB · 2 GB 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. G51

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

2. A83

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. G51

    2000 mAh

  2. 2. A83

    3180 mAh

    +1180 mAh versus G51

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. G512. A83

Everyday essentials
Everyday essentials — specifications for G51, A83.
SpecificationG51A83
Dimensions (HxWxD)
  • 142.6 Х 72.9 Х 9.1 mm
  • 150.5 Х 73.1 Х 7.7 mm
Weight
  • 155 g
  • 143 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5" inch
  • 5.7" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1440 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 64/32 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Ion
  • 3180 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Android 7.1 (Nougat); ColorOS 3.2
Chipset
  • Mediatek MT6737M (28 nm)
  • Mediatek MT6763T Helio P23 (16 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for G51, A83.
SpecificationG51A83
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 83.8 cm2
Screen format
  • 16:9 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 66.3%
  • 76.2%
PPI /points per inch/
  • 196 PPI
  • 282 PPI
Screen protection
  • Scratch-resistant glass
Unknown
Camera and Video
Camera and Video — specifications for G51, A83.
SpecificationG51A83
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • f/2.0
  • 13 MP
  • AF
  • f/2.2
Functions
  • Dual-LED dual-tone flash
  • LED flash
  • HDR
  • panorama
Video
  • 720p@30fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 5 MP
  • f/2.4
  • 8 MP
  • f/2.2
Performance

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

Performance — specifications for G51, A83.
SpecificationG51A83
Processor CPU
  • Quad-core 1.25 GHz Cortex-A53
  • Octa-core 2.5 GHz Cortex-A53
Graphics processor GPU
  • Mali-T720MP1
  • Mali-G71 MP2
Antutu 7 score *
  • 29322
  • 80225
GeekBench 4 Single Core * Unknown
  • 863
GeekBench 4 Multi-Core * Unknown
  • 3612
General specs
General specs — specifications for G51, A83.
SpecificationG51A83
Release date
  • 2017
  • 2018
  • January
Colors
  • Black
  • Gold
  • White
  • Blue
  • Gold
  • Black
  • Red
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 200 EUR
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for G51, A83.
SpecificationG51A83
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 900 / 2100 HSDPA 850 / 1900 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) LTE band 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 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
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.71 W/kg (head) 1.11 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for G51, A83.
SpecificationG51A83
Radio
  • FM radio
  • No
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for G51, A83.
SpecificationG51A83
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity
  • compass