MWg UBiQUiO 503g vs ZTE X990

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

    X990: 67 g lighter

    UBiQUiO 503g:
    157 g
    X990:
    90 g
  • Width

    X990: 4 mm narrower

    UBiQUiO 503g:
    65 mm
    X990:
    61 mm
  • Depth

    X990: 5 mm thinner

    UBiQUiO 503g:
    17 mm
    X990:
    12 mm
  • Height

    X990: 16 mm shorter

    UBiQUiO 503g:
    123 mm
    X990:
    107 mm
  • Release year

    UBiQUiO 503g:
    2007
    X990:
    2010

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. UBiQUiO 503g

    Height:
    123 mm +16 mm versus X990
    Width:
    65 mm +4 mm versus X990
    Depth:
    17 mm +5 mm versus X990
  2. 2. X990

    Height:
    107 mm
    Width:
    61 mm
    Depth:
    12 mm

Weight

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

  1. 1. UBiQUiO 503g

    157 g

    +67 g versus X990

  2. 2. X990

    90 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. UBiQUiO 503g

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    17.8 cm²
  2. 2. X990

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

X990 has approximately 8.5% more rectangular screen area than UBiQUiO 503g.

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.

UBiQUiO 503g: Original memory entry

96 MB RAM · 192 MB ROM

X990: Original memory entry

5 MB

Practical features

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

1. UBiQUiO 503g

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (dedicated slot)

2. X990

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 8 GB (dedicated slot)

Battery capacity

Capacity is not battery life. No endurance test is implied.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. UBiQUiO 503g2. X990

Everyday essentials
Everyday essentials — specifications for UBiQUiO 503g, X990.
SpecificationUBiQUiO 503gX990
Dimensions (HxWxD)
  • 123 Х 65 Х 17 mm
  • 107 Х 61 Х 12 mm
Weight
  • 157 g
  • 90 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" inch
  • 2.5" inch
Screen resolution
  • 320 x 240 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 96 MB RAM
  • 192 MB ROM
  • 5 MB
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 8 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 0 mAh,
Operating system OS
  • Microsoft Windows Mobile 6 Professional
  • Microsoft Windows Mobile 6.5 Professional
Headphone jack
  • No
  • No
Display
Display — specifications for UBiQUiO 503g, X990.
SpecificationUBiQUiO 503gX990
Touchscreen
  • resistive touchscreen
  • resistive touchscreen
Display colors Unknown
  • 256K
Screen area
  • 17.8 cm2
  • 19.4 cm2
Screen format
  • 4:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 22.3%
  • 29.7%
PPI /points per inch/
  • 167 PPI
  • 160 PPI
Camera and Video
Camera and Video — specifications for UBiQUiO 503g, X990.
SpecificationUBiQUiO 503gX990
Rear camera, main
  • 2 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 2 MP
  • AF
  • 2 MP
Video
  • Yes
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • Videocall camera
Unknown
Performance
Performance — specifications for UBiQUiO 503g, X990.
SpecificationUBiQUiO 503gX990
Processor CPU
  • Intel XScale PXA 270 520 MHz
Unknown
General specs
General specs — specifications for UBiQUiO 503g, X990.
SpecificationUBiQUiO 503gX990
Release date
  • 2007
  • April
  • 2010
  • March
Colors
  • Black
  • Gray
  • White
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 4 h
  • Stand by time- Up to 480 h Talking time- Up to 8 h
Communication and Connectivity
Communication and Connectivity — specifications for UBiQUiO 503g, X990.
SpecificationUBiQUiO 503gX990
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Unknown
Speed
  • HSPA 3.6/0.384 Mbps
Unknown
GPRS
  • Class 10
  • Class 10
Edge
  • Class 10
  • Class 10
Wi-Fi
  • Wi-Fi 802.11b/g
  • No
GPS
  • No
  • No
USB
  • miniUSB 1.1
  • microUSB 2.0
Bluetooth
  • 1.2
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.96 W/kg (head)
Music and Audio
Music and Audio — specifications for UBiQUiO 503g, X990.
SpecificationUBiQUiO 503gX990
Radio
  • No
  • Stereo FM radio
  • RDS
Other features
Other features — specifications for UBiQUiO 503g, X990.
SpecificationUBiQUiO 503gX990
Dop
  • MP3/AAC/MP4 player -Pocket Office -Organizer -Voice memo -Predictive text input
  • Windows Live Messenger -MP3/WMA/eAAC+ player -MP4/H.264 player -MS Office -Organizer -Voice memo -Predictive text input Also known as Messenger by SFR 251 Edition