Fujitsu Siemens T830 vs HTC Desire 820

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

    Desire 820: 35 g lighter

    Siemens T830:
    190 g
    Desire 820:
    155 g
  • Width

    Siemens T830: 14.7 mm narrower

    Siemens T830:
    64 mm
    Desire 820:
    78.7 mm
  • Screen diagonal

    Siemens T830: 3.1 in smaller diagonal

    Siemens T830:
    2.4 in
    Desire 820:
    5.5 in
  • Depth

    Desire 820: 13.3 mm thinner

    Siemens T830:
    21 mm
    Desire 820:
    7.7 mm
  • Height

    Siemens T830: 31.7 mm shorter

    Siemens T830:
    126 mm
    Desire 820:
    157.7 mm
  • Release year

    Siemens T830:
    2006
    Desire 820:
    2014

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 +13.3 mm versus Desire 820
  2. 2. Desire 820

    Height:
    157.7 mm +31.7 mm versus Siemens T830
    Width:
    78.7 mm +14.7 mm versus Siemens T830
    Depth:
    7.7 mm

Weight

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

  1. 1. Siemens T830

    190 g

    +35 g versus Desire 820

  2. 2. Desire 820

    155 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. Desire 820

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²

Desire 820 has approximately 348.8% 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.

Recorded RAM for Siemens T830, Desire 820, compared at the same storage capacity.
StorageSiemens T830Desire 820
16 GB Unknown 2 GB RAM
Siemens T830: Original memory entry

64 MB RAM · 128 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. Siemens T830

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

2. Desire 820

NFC:
See details Yes (optional)
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. Desire 820

    2600 mAh

    +1100 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. Desire 820

Everyday essentials
Everyday essentials — specifications for Siemens T830, Desire 820.
SpecificationSiemens T830Desire 820
Dimensions (HxWxD)
  • 126 Х 64 Х 21 mm
  • 157.7 Х 78.7 Х 7.7 mm
Weight
  • 190 g
  • 155 g
Technology
  • TFT
  • LCD
Screen size
  • 2.4" inch
  • 5.5" inch
Screen resolution
  • 240 x 240 px
  • 720 x 1280 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
  • 16 GB
  • 2 GB RAM
Memory card support
  • SD
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1500 mAh
  • Removable Li-Ion
  • 2600 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 5.0 Phone Edition
  • Android 4.4.2 (KitKat)
  • upgradable to 6.1 (Marshmallow); Sense UI 7
Chipset Unknown
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
NFC Unknown
  • Yes (optional)
Headphone jack
  • No
  • Yes
Display
Display — specifications for Siemens T830, Desire 820.
SpecificationSiemens T830Desire 820
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 18.6 cm2
  • 83.4 cm2
Screen format
  • 1:1 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 23.0%
  • 67.2%
PPI /points per inch/
  • 141 PPI
  • 267 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Siemens T830, Desire 820.
SpecificationSiemens T830Desire 820
Rear camera, main
  • 2 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 2 MP
  • AF
  • 13 MP
  • f/2.2
  • 28mm (wide)
  • AF
Functions Unknown
  • LED flash
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 8 MP
  • Single
Specifications
  • VGA videocall camera
  • 8 MP
  • f/2.3
Performance

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

Performance — specifications for Siemens T830, Desire 820.
SpecificationSiemens T830Desire 820
Processor CPU
  • Intel PXA272 416 MHz
  • Octa-core (4x1.5 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU Unknown
  • Adreno 405
Antutu 7 score * Unknown
  • 37236
GeekBench 4 Single Core * Unknown
  • 573
GeekBench 4 Multi-Core * Unknown
  • 1447
GeekBench 4 RenderScript * Unknown
  • 1914
General specs
General specs — specifications for Siemens T830, Desire 820.
SpecificationSiemens T830Desire 820
Release date
  • 2006
  • August
  • 2014
  • September
Colors
  • Silver
  • Marble white
  • Tuxedo Grey
  • Santorini White
  • Milky-way Grey
  • Tangerine White
  • Saffron Grey
  • Flamingo Grey
  • Blue Misty
  • Monarch Orange
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 340 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 4 h
  • Stand by time- Up to 424 h (3G) Talking time- Up to 22 h 24 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Siemens T830, Desire 820.
SpecificationSiemens T830Desire 820
SIM card
  • Mini-SIM
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 - EMEA
  • Asia HSDPA 850 / 900 / 2100 - Europe TD-SCDMA - Asia -4G - LTE band 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) - Europe LTE band 1(2100)
  • 3(1800)
  • 8(900) - EMEA LTE band 1(2100)
  • 28(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - Asia
Speed
  • Yes
  • 384 kbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • No
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 a/b/g/n
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • SiRF GCS3F receiver
  • Yes
  • with A-GPS
  • GLONASS
USB
  • Proprietary
  • microUSB 2.0
  • USB Host
Bluetooth
  • 2.0
  • 4.0
  • A2DP
  • aptX
Music and Audio
Music and Audio — specifications for Siemens T830, Desire 820.
SpecificationSiemens T830Desire 820
Radio
  • No
  • FM radio
Others
  • 5-way navigation key
Unknown
Other features
Other features — specifications for Siemens T830, Desire 820.
SpecificationSiemens T830Desire 820
Dop
  • SiRF GCS3F receiver -Video telephony -Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -Organizer -Voice memo
  • Sensors Accelerometer
  • proximity
  • compass