Siemens SX45 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

    Redmi Note 9 Pro: 121 g lighter

    SX45:
    330 g
    Redmi Note 9 Pro:
    209 g
  • Width

    Redmi Note 9 Pro: 10.3 mm narrower

    SX45:
    87 mm
    Redmi Note 9 Pro:
    76.7 mm
  • Depth

    Redmi Note 9 Pro: 17.2 mm thinner

    SX45:
    26 mm
    Redmi Note 9 Pro:
    8.8 mm
  • Height

    SX45: 31.8 mm shorter

    SX45:
    134 mm
    Redmi Note 9 Pro:
    165.8 mm
  • Release year

    SX45:
    2001
    Redmi Note 9 Pro:
    2020

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. SX45

    Height:
    134 mm
    Width:
    87 mm +10.3 mm versus Redmi Note 9 Pro
    Depth:
    26 mm +17.2 mm versus Redmi Note 9 Pro
  2. 2. Redmi Note 9 Pro

    Height:
    165.8 mm +31.8 mm versus SX45
    Width:
    76.7 mm
    Depth:
    8.8 mm

Weight

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

  1. 1. SX45

    330 g

    +121 g versus Redmi Note 9 Pro

  2. 2. Redmi Note 9 Pro

    209 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. SX45

    SX45: Screen geometry unavailable or conflicting.

  2. 2. Redmi Note 9 Pro

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

Recorded RAM for SX45, Redmi Note 9 Pro, compared at the same storage capacity.
StorageSX45Redmi Note 9 Pro
64 GB Unknown 4 GB RAM
128 GB Unknown 6 GB RAM
SX45: Original memory entry

32 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. SX45

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. SX45

    1550 mAh

  2. 2. Redmi Note 9 Pro

    5020 mAh

    +3470 mAh versus SX45

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. SX452. Redmi Note 9 Pro

Everyday essentials
Everyday essentials — specifications for SX45, Redmi Note 9 Pro.
SpecificationSX45Redmi Note 9 Pro
Dimensions (HxWxD)
  • 134 Х 87 Х 26 mm
  • 165.8 Х 76.7 Х 8.8 mm
Weight
  • 330 g
  • 209 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 0" inch
  • 6.67" inch
Screen resolution
  • 240 x 320 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 MB
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • No
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1550 mAh
  • Removable Li-Ion
  • 5020 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows CE 3.0 for PocketPC
  • Android 10.0; MIUI 11
Chipset Unknown
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for SX45, Redmi Note 9 Pro.
SpecificationSX45Redmi Note 9 Pro
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area Unknown
  • 107.4 cm2
Screen format
  • 4:3 (height:width)
  • 20:9 (height:width)
Screen to body ratio Unknown
  • 84.5%
PPI /points per inch/
  • 0 PPI
  • 395 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for SX45, Redmi Note 9 Pro.
SpecificationSX45Redmi Note 9 Pro
Rear camera, main
  • 0 MP,
  • 48 MP
  • Quad
Camera specs Unknown
  • 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 Unknown
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 16 MP
  • Single
Specifications Unknown
  • 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 SX45, Redmi Note 9 Pro.
SpecificationSX45Redmi Note 9 Pro
Processor CPU
  • 64-bit NEC VR4122 150 MHz
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU Unknown
  • Adreno 618
Antutu 8 score * Unknown
  • 275962
General specs
General specs — specifications for SX45, Redmi Note 9 Pro.
SpecificationSX45Redmi Note 9 Pro
Release date
  • 2001
  • 2020
  • March 12
Colors Unknown
  • 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 150 h Talking time- Up to 2 h
Unknown
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for SX45, Redmi Note 9 Pro.
SpecificationSX45Redmi Note 9 Pro
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 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • No
  • Yes
Edge
  • No
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • NavIC
USB Unknown
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • No
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for SX45, Redmi Note 9 Pro.
SpecificationSX45Redmi Note 9 Pro
Radio
  • No
  • FM radio
  • recording
Others
  • 57.6 mm x 76.8 mm -0.24 mm pixel pitch
  • 450 nits typ. brightness (advertised)
Other features
Other features — specifications for SX45, Redmi Note 9 Pro.
SpecificationSX45Redmi Note 9 Pro
Dop
  • Infrared port - Full PocketPC functionality -Media player (MP3) - PDA + mobile phone
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof