i-mate PDA2 vs Oppo A31

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

    A31: 10 g lighter

    PDA2:
    190 g
    A31:
    180 g
  • Width

    PDA2: 6.5 mm narrower

    PDA2:
    69 mm
    A31:
    75.5 mm
  • Screen diagonal

    PDA2: 3 in smaller diagonal

    PDA2:
    3.5 in
    A31:
    6.5 in
  • Rear camera layout

    PDA2:
    Single
    A31:
    Triple
  • Depth

    A31: 10.7 mm thinner

    PDA2:
    19 mm
    A31:
    8.3 mm
  • Height

    PDA2: 33.9 mm shorter

    PDA2:
    130 mm
    A31:
    163.9 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. PDA2

    Height:
    130 mm
    Width:
    69 mm
    Depth:
    19 mm +10.7 mm versus A31
  2. 2. A31

    Height:
    163.9 mm +33.9 mm versus PDA2
    Width:
    75.5 mm +6.5 mm versus PDA2
    Depth:
    8.3 mm

Weight

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

  1. 1. PDA2

    190 g

    +10 g versus A31

  2. 2. A31

    180 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. PDA2

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    37.9 cm²
  2. 2. A31

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²

A31 has approximately 168.9% more rectangular screen area than PDA2.

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 PDA2, A31, compared at the same storage capacity.
StoragePDA2A31
128 GB Unknown 4 GB RAM
PDA2: Original memory entry

128 MB RAM · 64 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. PDA2

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details MMC/SDIO · up to 2 GB

2. A31

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (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. PDA2

    1300 mAh

  2. 2. A31

    4230 mAh

    +2930 mAh versus PDA2

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. PDA22. A31

Everyday essentials
Everyday essentials — specifications for PDA2, A31.
SpecificationPDA2A31
Dimensions (HxWxD)
  • 130 Х 69 Х 19 mm
  • 163.9 Х 75.5 Х 8.3 mm
Weight
  • 190 g
  • 180 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 6.5" inch
Screen resolution
  • 240 x 320 px
  • 720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 64 MB ROM
  • 128GB 4GB RAM
Memory card support
  • MMC/SDIO
  • up to 2 GB
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1300 mAh
  • Removable Li-Ion
  • 4230 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 2003 SE PocketPC
  • Android 9.0 (Pie); ColorOS 6.1
Chipset Unknown
  • Mediatek MT6765V/CB Helio P35 (12nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for PDA2, A31.
SpecificationPDA2A31
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 37.9 cm2
  • 102.0 cm2
Screen format
  • 4:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 42.3%
  • 82.4%
PPI /points per inch/
  • 114 PPI
  • 270 PPI
Camera and Video
Camera and Video — specifications for PDA2, A31.
SpecificationPDA2A31
Rear camera, main
  • 1.3 MP
  • Single
  • 12 MP
  • Triple
Camera specs
  • 1.3 MP
  • 12 MP
  • f/1.8
  • (wide)
  • PDAF -2 MP
  • f/2.4
  • 27mm (macro)
  • 1/5.0''
  • 1.75µm -2 MP
  • (depth)
Functions Unknown
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 8 MP
  • Single
Specifications Unknown
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for PDA2, A31.
SpecificationPDA2A31
Processor CPU
  • Intel Xscale PXA272 520 MHz
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU Unknown
  • PowerVR GE8320
Antutu 8 score * Unknown
  • 105221
General specs
General specs — specifications for PDA2, A31.
SpecificationPDA2A31
Release date
  • 2004
  • Q4
  • 2020
  • February 13
Colors Unknown
  • Fantasy White
  • Mystery Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 180 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 3 h 30 min
Unknown
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for PDA2, A31.
SpecificationPDA2A31
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Class 10
  • Yes
Edge
  • No
  • Yes
Wi-Fi
  • Wi-Fi 802.11b
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • BDS
USB
  • Proprietary
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • v.1.2
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for PDA2, A31.
SpecificationPDA2A31
Radio
  • No
  • FM radio
Others
  • Handwriting recognition
  • 480 nits typ. brightness
Other features
Other features — specifications for PDA2, A31.
SpecificationPDA2A31
Dop
  • Infrared port - Pocket Office -MP3/MP4 player -PDF
  • PPT viewer -Voice memo
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass