T-Mobile MDA Compact IV vs ZTE Open

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.

  • Width

    MDA Compact IV: 10 mm narrower

    MDA Compact IV:
    52 mm
    Open:
    62 mm
  • Screen diagonal

    MDA Compact IV: 0.7 in smaller diagonal

    MDA Compact IV:
    2.8 in
    Open:
    3.5 in
  • Chipset

    MDA Compact IV:
    Qualcomm MSM7201A
    Open:
    Qualcomm MSM7225A Snapdragon S1
  • Depth

    MDA Compact IV: 0.5 mm thinner

    MDA Compact IV:
    12 mm
    Open:
    12.5 mm
  • Height

    MDA Compact IV: 4 mm shorter

    MDA Compact IV:
    110 mm
    Open:
    114 mm
  • Release year

    MDA Compact IV:
    2008
    Open:
    2013

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. MDA Compact IV

    Height:
    110 mm
    Width:
    52 mm
    Depth:
    12 mm
    Weight:
    98 g
  2. 2. Open

    Height:
    114 mm +4 mm versus MDA Compact IV
    Width:
    62 mm +10 mm versus MDA Compact IV
    Depth:
    12.5 mm +0.5 mm versus MDA Compact IV
    Weight:
    Unknown

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. MDA Compact IV

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. Open

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²

Open has approximately 50.2% more rectangular screen area than MDA Compact IV.

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.

MDA Compact IV: Original memory entry

4 GB · 128 MB RAM · 256 MB ROM

Open: Original memory entry

512 MB ROM · 256 MB 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. MDA Compact IV

NFC:
Unknown
Headphone jack:
No
Memory card support:
No

2. Open

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

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. MDA Compact IV

    900 mAh

  2. 2. Open

    1200 mAh

    +300 mAh versus MDA Compact IV

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. MDA Compact IV2. Open

Everyday essentials
Everyday essentials — specifications for MDA Compact IV, Open.
SpecificationMDA Compact IVOpen
Dimensions (HxWxD)
  • 110 Х 52 Х 12 mm
  • 114 Х 62 Х 12.5 mm
Weight
  • 98 g
  • 0 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 3.5" inch
Screen resolution
  • 480 x 640 px
  • 320 x 480 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4 GB
  • 128 MB RAM
  • 256 MB ROM
  • 512 MB ROM
  • 256 MB RAM
Memory card support
  • No
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 900 mAh
  • Removable Li-Ion
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Firefox OS 1.0
Chipset
  • Qualcomm MSM7201A
  • Qualcomm MSM7225A Snapdragon S1
Headphone jack
  • No
  • Yes
Display
Display — specifications for MDA Compact IV, Open.
SpecificationMDA Compact IVOpen
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
Unknown
Screen area
  • 24.3 cm2
  • 36.5 cm2
Screen format
  • 4:3 (height:width)
  • 3:2 (height:width)
Screen to body ratio
  • 42.4%
  • 51.6%
PPI /points per inch/
  • 286 PPI
  • 165 PPI
Camera and Video
Camera and Video — specifications for MDA Compact IV, Open.
SpecificationMDA Compact IVOpen
Rear camera, main
  • 3.15 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 3.15 MP
Video
  • CIF@30fps
  • Yes
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA videocall camera
Unknown
Performance

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

Performance — specifications for MDA Compact IV, Open.
SpecificationMDA Compact IVOpen
Processor CPU
  • 528 MHz ARM 11
  • 1.0 GHz Cortex-A5
Graphics processor GPU
  • Adreno 130
  • Adreno 200
Antutu 7 score * Unknown
  • 1456
General specs
General specs — specifications for MDA Compact IV, Open.
SpecificationMDA Compact IVOpen
Release date
  • 2008
  • May
  • 2013
  • February
Colors
  • Black
  • Blue
  • Orange
Battery life
  • Stand by time- Up to 285 h Talking time- Up to 5 h 30 min
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for MDA Compact IV, Open.
SpecificationMDA Compact IVOpen
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 7.2/5.76 Mbps
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • A2DP
  • 2.1
  • A2DP
  • EDR
Harmful irradiation
  • SAR - 1.33 W/kg (head) 1.44 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for MDA Compact IV, Open.
SpecificationMDA Compact IVOpen
Radio
  • Stereo FM radio
  • RDS
  • Stereo FM radio
Others
  • TouchFLO 3D finger swipe navigation -Handwriting recognition
Unknown
Other features
Other features — specifications for MDA Compact IV, Open.
SpecificationMDA Compact IVOpen
Dop
  • Sensors Accelerometer Pocket Office -Voice memo -MP3 player -Predictive text input
  • Sensors Accelerometer
  • proximity - MP3/eAAC+/WAV/WMA player -MP4/H.264/WMV player -Document viewer -Photo viewer -Organizer -Voice memo/dial -Predictive text input