Nokia N91 vs T-Mobile MDA Compact IV

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

    MDA Compact IV: 66 g lighter

    N91:
    164 g
    MDA Compact IV:
    98 g
  • Width

    MDA Compact IV: 3.2 mm narrower

    N91:
    55.2 mm
    MDA Compact IV:
    52 mm
  • Screen diagonal

    N91: 0.7 in smaller diagonal

    N91:
    2.1 in
    MDA Compact IV:
    2.8 in
  • Depth

    MDA Compact IV: 10 mm thinner

    N91:
    22 mm
    MDA Compact IV:
    12 mm
  • Height

    MDA Compact IV: 3.1 mm shorter

    N91:
    113.1 mm
    MDA Compact IV:
    110 mm
  • Release year

    N91:
    2005
    MDA Compact IV:
    2008

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. N91

    Height:
    113.1 mm +3.1 mm versus MDA Compact IV
    Width:
    55.2 mm +3.2 mm versus MDA Compact IV
    Depth:
    22 mm +10 mm versus MDA Compact IV
  2. 2. MDA Compact IV

    Height:
    110 mm
    Width:
    52 mm
    Depth:
    12 mm

Weight

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

  1. 1. N91

    164 g

    +66 g versus MDA Compact IV

  2. 2. MDA Compact IV

    98 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. N91

    N91: Screen geometry unavailable or conflicting.

  2. 2. MDA Compact IV

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

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.

N91: Original memory entry

4/8 GB · 64 MB RAM

MDA Compact IV: Original memory entry

4 GB · 128 MB RAM · 256 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. N91

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

2. MDA Compact IV

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

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. N91

    900 mAh

  2. 2. MDA Compact IV

    900 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. N912. MDA Compact IV

Everyday essentials
Everyday essentials — specifications for N91, MDA Compact IV.
SpecificationN91MDA Compact IV
Dimensions (HxWxD)
  • 113.1 Х 55.2 Х 22 mm
  • 110 Х 52 Х 12 mm
Weight
  • 164 g
  • 98 g
Technology
  • TFT
  • TFT
Screen size
  • 2.1" inch
  • 2.8" inch
Screen resolution
  • 176 x 208 px
  • 480 x 640 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 4/8 GB
  • 64 MB RAM
  • 4 GB
  • 128 MB RAM
  • 256 MB ROM
Memory card support
  • No
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 900 mAh
  • Removable Li-Ion
  • 900 mAh
  • Removable Li-Ion
Operating system OS
  • Symbian 9.1
  • Series 60 UI 3rd Edition
  • Microsoft Windows Mobile 6.1 Professional
Chipset Unknown
  • Qualcomm MSM7201A
Headphone jack
  • Yes
  • No
Display
Display — specifications for N91, MDA Compact IV.
SpecificationN91MDA Compact IV
Touchscreen Unknown
  • resistive touchscreen
Display colors
  • 256K
  • 65K
Screen area
  • 14.0 cm2
  • 24.3 cm2
Screen format Unknown
  • 4:3 (height:width)
Screen to body ratio
  • 22.5%
  • 42.4%
PPI /points per inch/
  • 0 PPI
  • 286 PPI
Camera and Video
Camera and Video — specifications for N91, MDA Compact IV.
SpecificationN91MDA Compact IV
Rear camera, main
  • 2 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 2 MP
  • 3.15 MP
  • AF
Video
  • Yes
  • CIF@30fps
Front camera, selfie
  • 0 MP,
  • 0.3 MP
  • Single
Specifications Unknown
  • VGA videocall camera
Performance
Performance — specifications for N91, MDA Compact IV.
SpecificationN91MDA Compact IV
Processor CPU
  • 220 MHz Dual ARM 9
  • 528 MHz ARM 11
Graphics processor GPU Unknown
  • Adreno 130
General specs
General specs — specifications for N91, MDA Compact IV.
SpecificationN91MDA Compact IV
Release date
  • 2005
  • Q2
  • 2008
  • May
Colors
  • Light Blue Chrome
  • Dark Gray Chrome
  • Black (Music Edition)
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 230 EUR
Unknown
Battery life
  • Stand by time- Up to 190 h (2G) / 170 h (3G) Talking time- Up to 4 h (2G) / 3 h (3G) Music play - Up to 10 h
  • Stand by time- Up to 285 h Talking time- Up to 5 h 30 min
Communication and Connectivity
Communication and Connectivity — specifications for N91, MDA Compact IV.
SpecificationN91MDA Compact IV
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • Yes
  • 384 kbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Class 10
  • Class 12
Edge
  • Class 10
  • Class 12
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 b/g
GPS
  • No
  • Yes
  • with A-GPS
USB
  • miniUSB 2.0
  • miniUSB
Bluetooth
  • 1.2 (A2DP - 8 GB version only)
  • 2.0
  • A2DP
Harmful irradiation
  • SAR - 0.74 W/kg (head) 0.58 W/kg (body) SAR EU - 0.48 W/kg (head)
  • SAR - 1.33 W/kg (head) 1.44 W/kg (body)
Music and Audio
Music and Audio — specifications for N91, MDA Compact IV.
SpecificationN91MDA Compact IV
Radio
  • Stereo FM radio
  • Stereo FM radio
  • RDS
Others
  • 5-way configurable navigation key
  • TouchFLO 3D finger swipe navigation -Handwriting recognition
Other features
Other features — specifications for N91, MDA Compact IV.
SpecificationN91MDA Compact IV
Dop
  • Predictive text input -Voice dial -Voice memo -Organizer
  • Sensors Accelerometer Pocket Office -Voice memo -MP3 player -Predictive text input