Fujitsu Siemens T830 vs LG K40

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

    K40: 40 g lighter

    Siemens T830:
    190 g
    K40:
    150 g
  • Width

    Siemens T830: 7.9 mm narrower

    Siemens T830:
    64 mm
    K40:
    71.9 mm
  • Screen diagonal

    Siemens T830: 3.3 in smaller diagonal

    Siemens T830:
    2.4 in
    K40:
    5.7 in
  • Depth

    K40: 12.7 mm thinner

    Siemens T830:
    21 mm
    K40:
    8.3 mm
  • Height

    Siemens T830: 27 mm shorter

    Siemens T830:
    126 mm
    K40:
    153 mm
  • Release year

    Siemens T830:
    2006
    K40:
    2019

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. Siemens T830

    Height:
    126 mm
    Width:
    64 mm
    Depth:
    21 mm +12.7 mm versus K40
  2. 2. K40

    Height:
    153 mm +27 mm versus Siemens T830
    Width:
    71.9 mm +7.9 mm versus Siemens T830
    Depth:
    8.3 mm

Weight

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

  1. 1. Siemens T830

    190 g

    +40 g versus K40

  2. 2. K40

    150 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.

  1. 1. Siemens T830

    Screen diagonal:
    2.4 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    18.6 cm²
  2. 2. K40

    Screen diagonal:
    5.7 in
    Aspect ratio (height:width):
    18:9
    Approximate rectangular screen area:
    83.8 cm²

K40 has approximately 351.3% more rectangular screen area than Siemens T830.

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.

Siemens T830: Original memory entry

64 MB RAM · 128 MB ROM

K40: Original memory entry

32 GB · 2/3 GB 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. Siemens T830

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details SD

2. K40

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB (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. Siemens T830

    1500 mAh

  2. 2. K40

    3000 mAh

    +1500 mAh versus Siemens T830

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. Siemens T8302. K40

Everyday essentials
Everyday essentials — specifications for Siemens T830, K40.
SpecificationSiemens T830K40
Dimensions (HxWxD)
  • 126 Х 64 Х 21 mm
  • 153 Х 71.9 Х 8.3 mm
Weight
  • 190 g
  • 150 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.4" inch
  • 5.7" inch
Screen resolution
  • 240 x 240 px
  • 720 x 1440 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 GB
  • 2/3 GB RAM
Memory card support
  • SD
  • microSD
  • up to 512 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 5.0 Phone Edition
  • Android 8.1 (Oreo)
Chipset Unknown
  • Mediatek MT6762 Helio P22 (12 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for Siemens T830, K40.
SpecificationSiemens T830K40
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 18.6 cm2
  • 83.8 cm2
Screen format
  • 1:1 (height:width)
  • 18:9 (height:width)
Screen to body ratio
  • 23.0%
  • 76.2%
PPI /points per inch/
  • 141 PPI
  • 282 PPI
Camera and Video
Camera and Video — specifications for Siemens T830, K40.
SpecificationSiemens T830K40
Rear camera, main
  • 2 MP
  • Single
  • 16 MP
  • Single
Camera specs
  • 2 MP
  • AF
  • 16 MP
  • f/2.0
  • PDAF
Functions Unknown
  • LED flash
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA videocall camera
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for Siemens T830, K40.
SpecificationSiemens T830K40
Processor CPU
  • Intel PXA272 416 MHz
  • Octa-core 2.0 GHz Cortex-A53
Graphics processor GPU Unknown
  • PowerVR GE8320
Antutu 7 score * Unknown
  • 75203
General specs
General specs — specifications for Siemens T830, K40.
SpecificationSiemens T830K40
Release date
  • 2006
  • August
  • 2019
  • February
Colors
  • Silver
  • Black
  • Platinum
  • Blue
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 4 h
Unknown
Body build Unknown
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Siemens T830, K40.
SpecificationSiemens T830K40
SIM card
  • Mini-SIM
  • Single SIM (Nano-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 (dual-SIM model only) -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed
  • Yes
  • 384 kbps
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • No
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • SiRF GCS3F receiver
  • Yes
  • with A-GPS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • 2.0
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Siemens T830, K40.
SpecificationSiemens T830K40
Radio
  • No
  • FM radio
Others
  • 5-way navigation key
  • DTS: X Surround Sound -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Siemens T830, K40.
SpecificationSiemens T830K40
Dop
  • SiRF GCS3F receiver -Video telephony -Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -Organizer -Voice memo
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity - MIL-STD-810G compliant - Also known as LG K12+
  • LG K12 Plus
  • LG X4 (2019)