O2 XDA Stellar vs Panasonic T31

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

    T31: 70 g lighter

    XDA Stellar:
    190 g
    T31:
    120 g
  • Width

    XDA Stellar: 5.4 mm narrower

    XDA Stellar:
    59 mm
    T31:
    64.4 mm
  • Screen diagonal

    XDA Stellar: 1.2 in smaller diagonal

    XDA Stellar:
    2.8 in
    T31:
    4 in
  • Chipset

    XDA Stellar:
    Qualcomm MSM7200
    T31:
    Mediatek MT6572M (28 nm)
  • Depth

    T31: 7.4 mm thinner

    XDA Stellar:
    18.6 mm
    T31:
    11.2 mm
  • Height

    XDA Stellar: 10 mm shorter

    XDA Stellar:
    112 mm
    T31:
    122 mm

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. XDA Stellar

    Height:
    112 mm
    Width:
    59 mm
    Depth:
    18.6 mm +7.4 mm versus T31
  2. 2. T31

    Height:
    122 mm +10 mm versus XDA Stellar
    Width:
    64.4 mm +5.4 mm versus XDA Stellar
    Depth:
    11.2 mm

Weight

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

  1. 1. XDA Stellar

    190 g

    +70 g versus T31

  2. 2. T31

    120 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. XDA Stellar

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. T31

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 cm²

T31 has approximately 87.6% more rectangular screen area than XDA Stellar.

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.

XDA Stellar: Original memory entry

128 MB RAM · 256 MB ROM

T31: Original memory entry

4 GB · 512 MB 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. XDA Stellar

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

2. T31

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 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. XDA Stellar

    1350 mAh

    +50 mAh versus T31

  2. 2. T31

    1300 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. XDA Stellar2. T31

Everyday essentials
Everyday essentials — specifications for XDA Stellar, T31.
SpecificationXDA StellarT31
Dimensions (HxWxD)
  • 112 Х 59 Х 18.6 mm
  • 122 Х 64.4 Х 11.2 mm
Weight
  • 190 g
  • 120 g
Technology
  • TFT
  • TFT
Screen size
  • 2.8" inch
  • 4" inch
Screen resolution
  • 240 x 320 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 MB RAM
  • 256 MB ROM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1350 mAh
  • Removable Li-Ion
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.0 Professional
  • Android 4.2.2 (Jelly Bean)
Chipset
  • Qualcomm MSM7200
  • Mediatek MT6572M (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for XDA Stellar, T31.
SpecificationXDA StellarT31
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 24.3 cm2
  • 45.5 cm2
Screen format
  • 4:3 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 36.7%
  • 58.0%
PPI /points per inch/
  • 143 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for XDA Stellar, T31.
SpecificationXDA StellarT31
Rear camera, main
  • 3.15 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 3.15 MP
Functions Unknown
  • HDR
Video
  • Yes
  • 720p@24fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • VGA videocall camera
  • VGA
Performance

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

Performance — specifications for XDA Stellar, T31.
SpecificationXDA StellarT31
Processor CPU
  • 400 MHz ARM 11
  • Dual-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Adreno 130
  • Mali-400
Antutu 7 score * Unknown
  • 24789
General specs
General specs — specifications for XDA Stellar, T31.
SpecificationXDA StellarT31
Release date
  • 2007
  • November
  • 2013
  • October
Colors
  • Silver
  • Pure White
  • Bluish Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 70 EUR
Battery life
  • Stand by time- Up to 365 h Talking time- Up to 5 h
  • Stand by time- Up to 510 h (2G) / Up to 400 h (3G) Talking time- Up to 3 h 30 min (2G) / Up to 9 h 30 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for XDA Stellar, T31.
SpecificationXDA StellarT31
SIM card
  • Mini-SIM
  • Dual SIM (Mini-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 3.6/0.384 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11b/g
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • 2.0
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
Harmful irradiation Unknown
  • SAR EU - 0.85 W/kg (head) 1.18 W/kg (body)
Music and Audio
Music and Audio — specifications for XDA Stellar, T31.
SpecificationXDA StellarT31
Radio
  • No
  • FM radio
Others
  • Handwriting recognition
Unknown
Other features
Other features — specifications for XDA Stellar, T31.
SpecificationXDA StellarT31
Dop
  • Pocket Office -Business card reader -Voice memo -Media Player 10 HTC Kaiser platform
  • Sensors Accelerometer
  • proximity