T-Mobile MDA Compact IV vs Xiaomi Redmi Note 9 Pro

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: 111 g lighter

    MDA Compact IV:
    98 g
    Redmi Note 9 Pro:
    209 g
  • Width

    MDA Compact IV: 24.7 mm narrower

    MDA Compact IV:
    52 mm
    Redmi Note 9 Pro:
    76.7 mm
  • Screen diagonal

    MDA Compact IV: 3.87 in smaller diagonal

    MDA Compact IV:
    2.8 in
    Redmi Note 9 Pro:
    6.67 in
  • Chipset

    MDA Compact IV:
    Qualcomm MSM7201A
    Redmi Note 9 Pro:
    Qualcomm SM7125 Snapdragon 720G (8 nm)
  • Rear camera layout

    MDA Compact IV:
    Single
    Redmi Note 9 Pro:
    Quad
  • Depth

    Redmi Note 9 Pro: 3.2 mm thinner

    MDA Compact IV:
    12 mm
    Redmi Note 9 Pro:
    8.8 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. MDA Compact IV

    Height:
    110 mm
    Width:
    52 mm
    Depth:
    12 mm +3.2 mm versus Redmi Note 9 Pro
  2. 2. Redmi Note 9 Pro

    Height:
    165.8 mm +55.8 mm versus MDA Compact IV
    Width:
    76.7 mm +24.7 mm versus MDA Compact IV
    Depth:
    8.8 mm

Weight

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

  1. 1. MDA Compact IV

    98 g

  2. 2. Redmi Note 9 Pro

    209 g

    +111 g versus MDA Compact IV

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. Redmi Note 9 Pro

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

Redmi Note 9 Pro has approximately 342.4% 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.

Recorded RAM for MDA Compact IV, Redmi Note 9 Pro, compared at the same storage capacity.
StorageMDA Compact IVRedmi Note 9 Pro
64 GB Unknown 4 GB RAM
128 GB Unknown 6 GB 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. MDA Compact IV

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

2. Redmi Note 9 Pro

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. MDA Compact IV

    900 mAh

  2. 2. Redmi Note 9 Pro

    5020 mAh

    +4120 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. Redmi Note 9 Pro

Everyday essentials
Everyday essentials — specifications for MDA Compact IV, Redmi Note 9 Pro.
SpecificationMDA Compact IVRedmi Note 9 Pro
Dimensions (HxWxD)
  • 110 Х 52 Х 12 mm
  • 165.8 Х 76.7 Х 8.8 mm
Weight
  • 98 g
  • 209 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 6.67" inch
Screen resolution
  • 480 x 640 px
  • 1080 x 2400 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
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • No
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 900 mAh
  • Removable Li-Ion
  • 5020 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 10.0; MIUI 11
Chipset
  • Qualcomm MSM7201A
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for MDA Compact IV, Redmi Note 9 Pro.
SpecificationMDA Compact IVRedmi Note 9 Pro
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 107.4 cm2
Screen format
  • 4:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 42.4%
  • 84.5%
PPI /points per inch/
  • 286 PPI
  • 395 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for MDA Compact IV, Redmi Note 9 Pro.
SpecificationMDA Compact IVRedmi Note 9 Pro
Rear camera, main
  • 3.15 MP
  • Single
  • 48 MP
  • Quad
Camera specs
  • 3.15 MP
  • AF
  • 48 MP
  • f/1.8
  • 26mm (wide)
  • 1/2.0"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • (macro)
  • 1.12µm -2 MP
  • (depth)
Functions Unknown
  • HDR
  • panorama
Video
  • CIF@30fps
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 16 MP
  • Single
Specifications
  • VGA videocall camera
  • 16 MP
  • f/2.5
  • (wide)
  • 1.0µm
Performance

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

Performance — specifications for MDA Compact IV, Redmi Note 9 Pro.
SpecificationMDA Compact IVRedmi Note 9 Pro
Processor CPU
  • 528 MHz ARM 11
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU
  • Adreno 130
  • Adreno 618
Antutu 8 score * Unknown
  • 275962
General specs
General specs — specifications for MDA Compact IV, Redmi Note 9 Pro.
SpecificationMDA Compact IVRedmi Note 9 Pro
Release date
  • 2008
  • May
  • 2020
  • March 12
Colors
  • Black
  • Aurora Blue
  • Glacier white
  • Interstellar Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 160 EUR
Battery life
  • Stand by time- Up to 285 h Talking time- Up to 5 h 30 min
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for MDA Compact IV, Redmi Note 9 Pro.
SpecificationMDA Compact IVRedmi Note 9 Pro
SIM card
  • Mini-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Class 12
  • Yes
Edge
  • Class 12
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • NavIC
USB
  • miniUSB
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
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, Redmi Note 9 Pro.
SpecificationMDA Compact IVRedmi Note 9 Pro
Radio
  • Stereo FM radio
  • RDS
  • FM radio
  • recording
Others
  • TouchFLO 3D finger swipe navigation -Handwriting recognition
  • 450 nits typ. brightness (advertised)
Other features
Other features — specifications for MDA Compact IV, Redmi Note 9 Pro.
SpecificationMDA Compact IVRedmi Note 9 Pro
Dop
  • Sensors Accelerometer Pocket Office -Voice memo -MP3 player -Predictive text input
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof