Haier G51 vs O2 XDA IIs

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

    G51: 55 g lighter

    G51:
    155 g
    XDA IIs:
    210 g
  • Width

    XDA IIs: 1.9 mm narrower

    G51:
    72.9 mm
    XDA IIs:
    71 mm
  • Screen diagonal

    XDA IIs: 1.5 in smaller diagonal

    G51:
    5 in
    XDA IIs:
    3.5 in
  • Depth

    G51: 9.9 mm thinner

    G51:
    9.1 mm
    XDA IIs:
    19 mm
  • Height

    XDA IIs: 17.6 mm shorter

    G51:
    142.6 mm
    XDA IIs:
    125 mm
  • Release year

    G51:
    2017
    XDA IIs:
    2004

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 +17.6 mm versus XDA IIs
    Width:
    72.9 mm +1.9 mm versus XDA IIs
    Depth:
    9.1 mm
  2. 2. XDA IIs

    Height:
    125 mm
    Width:
    71 mm
    Depth:
    19 mm +9.9 mm versus G51

Weight

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

  1. 1. G51

    155 g

  2. 2. XDA IIs

    210 g

    +55 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. XDA IIs

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

G51 has approximately 81.7% more rectangular screen area than XDA IIs.

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, XDA IIs, compared at the same storage capacity.
StorageG51XDA IIs
8 GB 1 GB RAM Unknown
XDA IIs: Original memory entry

128 MB RAM · 96 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. G51

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

2. XDA IIs

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details MMC/SDIO

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

    +510 mAh versus XDA IIs

  2. 2. XDA IIs

    1490 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. G512. XDA IIs

Everyday essentials
Everyday essentials — specifications for G51, XDA IIs.
SpecificationG51XDA IIs
Dimensions (HxWxD)
  • 142.6 Х 72.9 Х 9.1 mm
  • 125 Х 71 Х 19 mm
Weight
  • 155 g
  • 210 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5" inch
  • 3.5" inch
Screen resolution
  • 480 x 854 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 128 MB RAM
  • 96 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • MMC/SDIO
Battery Capacity is not battery life. No endurance test is implied.
  • 2000 mAh
  • Removable Li-Ion
  • 1490 mAh
  • Removable Li-Po
Operating system OS
  • Android 7.0 (Nougat)
  • Microsoft Windows Mobile 2003 SE PocketPC
Chipset
  • Mediatek MT6737M (28 nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for G51, XDA IIs.
SpecificationG51XDA IIs
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors
  • 16M
  • 65K
Screen area
  • 68.9 cm2
  • 37.9 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 66.3%
  • 42.7%
PPI /points per inch/
  • 196 PPI
  • 114 PPI
Screen protection
  • Scratch-resistant glass
Unknown
Camera and Video
Camera and Video — specifications for G51, XDA IIs.
SpecificationG51XDA IIs
Rear camera, main
  • 5 MP
  • Single
  • 0.3 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • f/2.0
Unknown
Functions
  • Dual-LED dual-tone flash
Unknown
Video
  • 720p@30fps
  • Yes
Front camera, selfie
  • 5 MP
  • Single
  • 0 MP,
Specifications
  • 5 MP
  • f/2.4
Unknown
Performance

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

Performance — specifications for G51, XDA IIs.
SpecificationG51XDA IIs
Processor CPU
  • Quad-core 1.25 GHz Cortex-A53
  • Intel XScale PXA263 400 MHz
Graphics processor GPU
  • Mali-T720MP1
Unknown
Antutu 7 score *
  • 29322
Unknown
General specs
General specs — specifications for G51, XDA IIs.
SpecificationG51XDA IIs
Release date
  • 2017
  • 2004
  • Q4
Colors
  • Black
  • Gold
  • White
  • Blue
Unknown
Battery life Unknown
  • Stand by time- Up to 168 h Talking time- Up to 4 h
Communication and Connectivity
Communication and Connectivity — specifications for G51, XDA IIs.
SpecificationG51XDA IIs
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Mini-SIM
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)
Unknown
Speed
  • HSPA 42.2/11.5 Mbps
  • LTE Cat4 150/50 Mbps
Unknown
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • No
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11b
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 4.0
  • A2DP
  • LE
  • Yes
Harmful irradiation
  • SAR EU - 0.71 W/kg (head) 1.11 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for G51, XDA IIs.
SpecificationG51XDA IIs
Radio
  • FM radio
  • No
Others Unknown
  • Handwriting recognition
Other features
Other features — specifications for G51, XDA IIs.
SpecificationG51XDA IIs
Dop
  • Sensors Accelerometer
  • proximity
  • Infrared port - Pocket Office -MP3/MP4 player -Voice memo - Produced by HTC. Functionally identical to Qtek 9090
  • i-mate PDA2k
  • T-Mobile MDA III and Orange SPV M2000.