Coolpad Roar vs Fujitsu Siemens T830

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.

  • Width

    Siemens T830: 1.4 mm narrower

    Roar:
    65.4 mm
    Siemens T830:
    64 mm
  • Screen diagonal

    Siemens T830: 2.1 in smaller diagonal

    Roar:
    4.5 in
    Siemens T830:
    2.4 in
  • Depth

    Roar: 12 mm thinner

    Roar:
    9 mm
    Siemens T830:
    21 mm
  • Height

    Siemens T830: 7 mm shorter

    Roar:
    133 mm
    Siemens T830:
    126 mm
  • Release year

    Roar:
    2015
    Siemens T830:
    2006

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. Roar

    Height:
    133 mm +7 mm versus Siemens T830
    Width:
    65.4 mm +1.4 mm versus Siemens T830
    Depth:
    9 mm
    Weight:
    Unknown
  2. 2. Siemens T830

    Height:
    126 mm
    Width:
    64 mm
    Depth:
    21 mm +12 mm versus Roar
    Weight:
    190 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. Roar

    Screen diagonal:
    4.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    55.8 cm²
  2. 2. Siemens T830

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

Roar has approximately 200.4% 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 Roar, Siemens T830, compared at the same storage capacity.
StorageRoarSiemens T830
8 GB 1 GB RAM Unknown
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. Roar

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. Siemens T830

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

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. Roar

    1800 mAh

    +300 mAh versus Siemens T830

  2. 2. Siemens T830

    1500 mAh

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. Roar2. Siemens T830

Everyday essentials
Everyday essentials — specifications for Roar, Siemens T830.
SpecificationRoarSiemens T830
Dimensions (HxWxD)
  • 133 Х 65.4 Х 9 mm
  • 126 Х 64 Х 21 mm
Weight
  • 0 g
  • 190 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 4.5" inch
  • 2.4" inch
Screen resolution
  • 480 x 854 px
  • 240 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 64 MB RAM
  • 128 MB ROM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • SD
Battery Capacity is not battery life. No endurance test is implied.
  • 1800 mAh
  • Removable Li-Ion
  • 1500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 5.1 (Lollipop)
  • Microsoft Windows Mobile 5.0 Phone Edition
Chipset
  • Mediatek MT6580 (28 nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Roar, Siemens T830.
SpecificationRoarSiemens T830
Touchscreen
  • capacitive touchscreen
  • resistive touchscreen
Display colors Unknown
  • 65K
Screen area
  • 55.8 cm2
  • 18.6 cm2
Screen format
  • 16:9 (height:width)
  • 1:1 (height:width)
Screen to body ratio
  • 64.2%
  • 23.0%
PPI /points per inch/
  • 218 PPI
  • 141 PPI
Camera and Video
Camera and Video — specifications for Roar, Siemens T830.
SpecificationRoarSiemens T830
Rear camera, main
  • 5 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 2 MP
  • AF
Functions
  • LED flash
Unknown
Video
  • Yes
  • Yes
Front camera, selfie
  • 2 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 2 MP
  • VGA videocall camera
Performance
Performance — specifications for Roar, Siemens T830.
SpecificationRoarSiemens T830
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Intel PXA272 416 MHz
Graphics processor GPU
  • Mali-400MP2
Unknown
General specs
General specs — specifications for Roar, Siemens T830.
SpecificationRoarSiemens T830
Release date
  • 2015
  • November
  • 2006
  • August
Colors
  • Black
  • Silver
Battery life Unknown
  • Stand by time- Up to 150 h Talking time- Up to 4 h
Communication and Connectivity
Communication and Connectivity — specifications for Roar, Siemens T830.
SpecificationRoarSiemens T830
SIM card
  • Nano-SIM
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA
  • Yes
  • 384 kbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • No
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11b/g
GPS
  • Yes
  • with A-GPS
  • Yes
  • SiRF GCS3F receiver
USB
  • microUSB 2.0
  • Proprietary
Bluetooth
  • 4.0
  • A2DP
  • 2.0
Music and Audio
Music and Audio — specifications for Roar, Siemens T830.
SpecificationRoarSiemens T830
Radio
  • FM radio
  • No
Others Unknown
  • 5-way navigation key
Other features
Other features — specifications for Roar, Siemens T830.
SpecificationRoarSiemens T830
Dop
  • Sensors Yes
  • SiRF GCS3F receiver -Video telephony -Pocket Office -MP3/AAC/AAC+/WMA/OGG/AMR player -WMV/MP4 player -Organizer -Voice memo