Haier G51 vs Wiko Robby2

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    G51: 45 g lighter

    G51:
    155 g
    Robby2:
    200 g
  • Width

    G51: 5.9 mm narrower

    G51:
    72.9 mm
    Robby2:
    78.8 mm
  • Screen diagonal

    G51: 0.5 in smaller diagonal

    G51:
    5 in
    Robby2:
    5.5 in
  • Height

    G51: 12 mm shorter

    G51:
    142.6 mm
    Robby2:
    154.6 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. G51

    Height:
    142.6 mm
    Width:
    72.9 mm
    Depth:
    9.1 mm
  2. 2. Robby2

    Height:
    154.6 mm +12 mm versus G51
    Width:
    78.8 mm +5.9 mm versus G51
    Depth:
    9.4 mm

Weight

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

  1. 1. G51

    155 g

  2. 2. Robby2

    200 g

    +45 g versus G51

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. Robby2

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²

Robby2 has approximately 21% 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, Robby2, compared at the same storage capacity.
StorageG51Robby2
8 GB 1 GB RAM Not recorded
16 GB Not recorded 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. Robby2

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB

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. Robby2

    2800 mAh

    +800 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. Robby2

Everyday essentials
Everyday essentials — specifications for G51, Robby2.
SpecificationG51Robby2
Dimensions (HxWxD)
  • 142.6 Х 72.9 Х 9.1 mm
  • 154.6 Х 78.8 Х 9.4 mm
Weight
  • 155 g
  • 200 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5" inch
  • 5.5" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Ion
  • 2800 mAh
  • Li-Ion
Operating system OS
  • Android 7.0 (Nougat)
  • Android 7.1 (Nougat)
Chipset
  • Mediatek MT6737M (28 nm)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for G51, Robby2.
SpecificationG51Robby2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 83.4 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 66.3%
  • 68.5%
PPI /points per inch/
  • 196 PPI
  • 267 PPI
Screen protection
  • Scratch-resistant glass
Unknown
Camera and Video
Camera and Video — specifications for G51, Robby2.
SpecificationG51Robby2
Rear camera, main
  • 5 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • f/2.0
  • 8 MP
  • AF
Functions
  • Dual-LED dual-tone flash
  • LED flash
  • HDR
Video
  • 720p@30fps
  • 720p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 5 MP
  • f/2.4
  • 5 MP
Performance

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

Performance — specifications for G51, Robby2.
SpecificationG51Robby2
Processor CPU
  • Quad-core 1.25 GHz Cortex-A53
  • Quad-core 1.1 GHz Cortex-A7
Graphics processor GPU
  • Mali-T720MP1
  • Adreno 304
Antutu 7 score *
  • 29322
  • 7925
General specs
General specs — specifications for G51, Robby2.
SpecificationG51Robby2
Release date
  • 2017
  • 2017
Colors
  • Black
  • Gold
  • White
  • Blue
  • Black
  • Gold
  • Rose Gold
Communication and Connectivity
Communication and Connectivity — specifications for G51, Robby2.
SpecificationG51Robby2
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-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 -3G - HSDPA 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 20(800)
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 21.1/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB Host
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 0.71 W/kg (head) 1.11 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for G51, Robby2.
SpecificationG51Robby2
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for G51, Robby2.
SpecificationG51Robby2
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity - For Europe