T-Mobile Shadow vs vivo Y31

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    Y31: 13 g lighter

    Shadow:
    150 g
    Y31:
    137 g
  • Width

    Shadow: 15.8 mm narrower

    Shadow:
    53 mm
    Y31:
    68.8 mm
  • Chipset

    Shadow:
    TI OMAP 850
    Y31:
    Mediatek MT6580 (28 nm)
  • Depth

    Y31: 6.6 mm thinner

    Shadow:
    15 mm
    Y31:
    8.4 mm
  • Height

    Shadow: 34.2 mm shorter

    Shadow:
    103 mm
    Y31:
    137.2 mm
  • Release year

    Shadow:
    2007
    Y31:
    2015

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. Shadow

    Height:
    103 mm
    Width:
    53 mm
    Depth:
    15 mm +6.6 mm versus Y31
  2. 2. Y31

    Height:
    137.2 mm +34.2 mm versus Shadow
    Width:
    68.8 mm +15.8 mm versus Shadow
    Depth:
    8.4 mm

Weight

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

  1. 1. Shadow

    150 g

    +13 g versus Y31

  2. 2. Y31

    137 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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. Shadow

    Shadow: Screen geometry unavailable or conflicting.

  2. 2. Y31

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

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 Shadow, Y31, compared at the same storage capacity.
StorageShadowY31
8 GB Unknown 1 GB RAM
Shadow: Original memory entry

128 MB RAM · 256 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. Shadow

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD (dedicated slot)

2. Y31

NFC:
Unknown
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. Shadow

    920 mAh

  2. 2. Y31

    2100 mAh

    +1180 mAh versus Shadow

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. Shadow2. Y31

Everyday essentials
Everyday essentials — specifications for Shadow, Y31.
SpecificationShadowY31
Dimensions (HxWxD)
  • 103 Х 53 Х 15 mm
  • 137.2 Х 68.8 Х 8.4 mm
Weight
  • 150 g
  • 137 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 0" inch
  • 4.7" inch
Screen resolution
  • 240 x 320 px
  • 720 x 1280 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
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 920 mAh
  • Removable Li-Ion
  • 2100 mAh
  • Removable Li-Po
Operating system OS
  • Microsoft Windows Mobile 6.0 Standard
  • Android 5.1 (Lollipop); Funtouch 2.1
Chipset
  • TI OMAP 850
  • Mediatek MT6580 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for Shadow, Y31.
SpecificationShadowY31
Touchscreen Unknown
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area Unknown
  • 60.9 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio Unknown
  • 64.5%
PPI /points per inch/
  • 0 PPI
  • 312 PPI
Camera and Video
Camera and Video — specifications for Shadow, Y31.
SpecificationShadowY31
Rear camera, main
  • 2 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 2 MP
  • 8 MP
Functions Unknown
  • LED flash
  • HDR
Video
  • Yes
  • 720p@30fps
Front camera, selfie
  • 0 MP,
  • 2 MP
  • Single
Specifications Unknown
  • 2 MP
Performance

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

Performance — specifications for Shadow, Y31.
SpecificationShadowY31
Processor CPU
  • 200 MHz ARM926EJ-S
  • Quad-core 1.3 GHz Cortex-A7
Graphics processor GPU Unknown
  • Mali-400MP2
GeekBench 4 Single Core * Unknown
  • 405
GeekBench 4 Multi-Core * Unknown
  • 1086
Antutu 8 score * Unknown
  • 101155
General specs
General specs — specifications for Shadow, Y31.
SpecificationShadowY31
Release date
  • 2007
  • October
  • 2015
  • September
Colors
  • Black
  • White
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
  • 130 EUR
Battery life
  • Stand by time- Up to 150 h Talking time- Up to 5 h
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Shadow, Y31.
SpecificationShadowY31
SIM card
  • Mini-SIM
  • Dual SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
Speed Unknown
  • HSPA
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
USB
  • miniUSB
  • microUSB 2.0
Bluetooth
  • 2.0
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 0.35 W/kg (head) 0.67 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Shadow, Y31.
SpecificationShadowY31
Radio
  • No
  • FM radio
Other features
Other features — specifications for Shadow, Y31.
SpecificationShadowY31
Dop
  • Pocket Office -MP3/AAC player -Voice memo/dial -Predictive text input HTC Juno platform
  • Sensors Accelerometer
  • proximity
  • compass