Samsung i640 vs Siemens SX45

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

    i640: 182 g lighter

    i640:
    148 g
    SX45:
    330 g
  • Width

    i640: 26 mm narrower

    i640:
    61 mm
    SX45:
    87 mm
  • Depth

    i640: 9.1 mm thinner

    i640:
    16.9 mm
    SX45:
    26 mm
  • Height

    i640: 39.6 mm shorter

    i640:
    94.4 mm
    SX45:
    134 mm
  • Release year

    i640:
    2008
    SX45:
    2001

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. i640

    Height:
    94.4 mm
    Width:
    61 mm
    Depth:
    16.9 mm
  2. 2. SX45

    Height:
    134 mm +39.6 mm versus i640
    Width:
    87 mm +26 mm versus i640
    Depth:
    26 mm +9.1 mm versus i640

Weight

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

  1. 1. i640

    148 g

  2. 2. SX45

    330 g

    +182 g versus i640

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. i640

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    17.8 cm²
  2. 2. SX45

    SX45: Screen geometry unavailable or conflicting.

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.

i640: Original memory entry

64 MB RAM · 128 MB ROM

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. i640

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

2. SX45

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. i640

    1000 mAh

  2. 2. SX45

    1550 mAh

    +550 mAh versus i640

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. i6402. SX45

Everyday essentials
Everyday essentials — specifications for i640, SX45.
Specificationi640SX45
Dimensions (HxWxD)
  • 94.4 Х 61 Х 16.9 mm
  • 134 Х 87 Х 26 mm
Weight
  • 148 g
  • 330 g
Technology
  • TFT
  • TFT
Screen size
  • 2.4" inch
  • 0" inch
Screen resolution
  • 320 x 240 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB RAM
  • 128 MB ROM
  • 32 MB
Memory card support
  • microSD (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1000 mAh
  • Removable Li-Ion
  • 1550 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.0 Standard
  • Microsoft Windows CE 3.0 for PocketPC
Headphone jack
  • No
  • No
Display
Display — specifications for i640, SX45.
Specificationi640SX45
Touchscreen Unknown
  • resistive touchscreen
Display colors
  • 65K
  • 65K
Screen area
  • 17.8 cm2
Unknown
Screen format
  • 4:3 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 31.0%
Unknown
PPI /points per inch/
  • 167 PPI
  • 0 PPI
Camera and Video
Camera and Video — specifications for i640, SX45.
Specificationi640SX45
Rear camera, main
  • 2 MP
  • Single
  • 0 MP,
Camera specs
  • 2 MP
Unknown
Video
  • Yes
Unknown
Front camera, selfie
  • 0.3 MP
  • Single
  • 0 MP,
Specifications
  • VGA videocall camera
Unknown
Performance
Performance — specifications for i640, SX45.
Specificationi640SX45
Processor CPU
  • 32-bit Intel XScale PXA270 416 MHz
  • 64-bit NEC VR4122 150 MHz
General specs
General specs — specifications for i640, SX45.
Specificationi640SX45
Release date
  • 2008
  • February
  • 2001
Colors
  • Silver
Unknown
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
Unknown
Battery life
  • Stand by time- Up to 250 h Talking time- Up to 6 h
  • Stand by time- Up to 150 h Talking time- Up to 2 h
Communication and Connectivity
Communication and Connectivity — specifications for i640, SX45.
Specificationi640SX45
SIM card
  • Mini-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Unknown
Speed
  • HSPA 3.6/0.384 Mbps
Unknown
GPRS
  • Class 10
  • No
Edge
  • Class 10
  • No
Wi-Fi
  • No
  • No
GPS
  • No
  • No
USB
  • 1.1
Unknown
Bluetooth
  • 2.0
  • No
Harmful irradiation
  • SAR - 1.18 W/kg (head) 1.12 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for i640, SX45.
Specificationi640SX45
Radio
  • No
  • No
Others
  • Jog Dial
  • 57.6 mm x 76.8 mm -0.24 mm pixel pitch
Other features
Other features — specifications for i640, SX45.
Specificationi640SX45
Dop
  • WMV/3GP/MP4 player -WMA/MP3/AAC+ player -Organizer -Pocket Office -Voice memo
  • Infrared port - Full PocketPC functionality -Media player (MP3) - PDA + mobile phone