BLU Grand X 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: 45 g lighter

    Grand X:
    165 g
    T31:
    120 g
  • Width

    T31: 8.5 mm narrower

    Grand X:
    72.9 mm
    T31:
    64.4 mm
  • Screen diagonal

    T31: 1 in smaller diagonal

    Grand X:
    5 in
    T31:
    4 in
  • Chipset

    Grand X:
    Mediatek MT6580 (28 nm)
    T31:
    Mediatek MT6572M (28 nm)
  • Depth

    Grand X: 2.1 mm thinner

    Grand X:
    9.1 mm
    T31:
    11.2 mm
  • Height

    T31: 23.8 mm shorter

    Grand X:
    145.8 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. Grand X

    Height:
    145.8 mm +23.8 mm versus T31
    Width:
    72.9 mm +8.5 mm versus T31
    Depth:
    9.1 mm
  2. 2. T31

    Height:
    122 mm
    Width:
    64.4 mm
    Depth:
    11.2 mm +2.1 mm versus Grand X

Weight

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

  1. 1. Grand X

    165 g

    +45 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. Grand X

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. T31

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

Grand X has approximately 51.3% more rectangular screen area than T31.

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 Grand X, T31, compared at the same storage capacity.
StorageGrand XT31
8 GB 1 GB RAM Unknown
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. Grand X

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

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. Grand X

    2200 mAh

    +900 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. Grand X2. T31

Everyday essentials
Everyday essentials — specifications for Grand X, T31.
SpecificationGrand XT31
Dimensions (HxWxD)
  • 145.8 Х 72.9 Х 9.1 mm
  • 122 Х 64.4 Х 11.2 mm
Weight
  • 165 g
  • 120 g
Technology Unknown
  • TFT
Screen size
  • 5" inch
  • 4" inch
Screen resolution
  • 720 x 1280 px
  • 480 x 800 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 4 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB
  • microSD
  • up to 32 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2200 mAh
  • Non-removable Li-Po
  • 1300 mAh
  • Removable Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 4.2.2 (Jelly Bean)
Chipset
  • Mediatek MT6580 (28 nm)
  • Mediatek MT6572M (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Grand X, T31.
SpecificationGrand XT31
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 45.5 cm2
Screen format
  • 16:9 (height:width)
  • 5:3 (height:width)
Screen to body ratio
  • 64.8%
  • 58.0%
PPI /points per inch/
  • 294 PPI
  • 233 PPI
Camera and Video
Camera and Video — specifications for Grand X, T31.
SpecificationGrand XT31
Rear camera, main
  • 5 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 3.15 MP
Functions
  • LED flash
  • HDR
Video
  • 1080p@30fps
  • 720p@24fps
Front camera, selfie
  • 5 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 5 MP
  • VGA
Performance

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

Performance — specifications for Grand X, T31.
SpecificationGrand XT31
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • Dual-core 1.3 GHz Cortex-A7
Graphics processor GPU
  • Mali-400MP2
  • Mali-400
Antutu 7 score *
  • 21752
  • 24789
General specs
General specs — specifications for Grand X, T31.
SpecificationGrand XT31
Release date
  • 2017
  • January
  • 2013
  • October
Colors
  • Grey
  • Gold
  • Rose Gold
  • 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 900 h (2G) / Up to 750 h (3G) Talking time- Up to 24 h (2G) / Up to 15 h (3G)
  • 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 Grand X, T31.
SpecificationGrand XT31
SIM card
  • Dual SIM (Nano-SIM/ Micro-SIM)
  • Dual SIM (Mini-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 21.1/5.76 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • 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 Grand X, T31.
SpecificationGrand XT31
Radio
  • FM radio
  • FM radio
Other features
Other features — specifications for Grand X, T31.
SpecificationGrand XT31
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer
  • proximity