BLU Studio X vs Samsung i637 Jack

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

    i637 Jack: 51.9 g lighter

    Studio X:
    154 g
    i637 Jack:
    102.1 g
  • Width

    i637 Jack: 11 mm narrower

    Studio X:
    72 mm
    i637 Jack:
    61 mm
  • Screen diagonal

    i637 Jack: 2.6 in smaller diagonal

    Studio X:
    5 in
    i637 Jack:
    2.4 in
  • Depth

    Studio X: 2.2 mm thinner

    Studio X:
    10.5 mm
    i637 Jack:
    12.7 mm
  • Height

    i637 Jack: 27 mm shorter

    Studio X:
    144 mm
    i637 Jack:
    117 mm
  • Release year

    Studio X:
    2015
    i637 Jack:
    2009

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. Studio X

    Height:
    144 mm +27 mm versus i637 Jack
    Width:
    72 mm +11 mm versus i637 Jack
    Depth:
    10.5 mm
  2. 2. i637 Jack

    Height:
    117 mm
    Width:
    61 mm
    Depth:
    12.7 mm +2.2 mm versus Studio X

Weight

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

  1. 1. Studio X

    154 g

    +51.9 g versus i637 Jack

  2. 2. i637 Jack

    102.1 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. Studio X

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. i637 Jack

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

Studio X has approximately 286.4% more rectangular screen area than i637 Jack.

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 Studio X, i637 Jack, compared at the same storage capacity.
StorageStudio Xi637 Jack
8 GB 1 GB RAM Unknown
i637 Jack: Original memory entry

256 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. Studio X

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 64 GB

2. i637 Jack

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 16 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. Studio X

    2100 mAh

    +620 mAh versus i637 Jack

  2. 2. i637 Jack

    1480 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. Studio X2. i637 Jack

Everyday essentials
Everyday essentials — specifications for Studio X, i637 Jack.
SpecificationStudio Xi637 Jack
Dimensions (HxWxD)
  • 144 Х 72 Х 10.5 mm
  • 117 Х 61 Х 12.7 mm
Weight
  • 154 g
  • 102.1 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5" inch
  • 2.4" inch
Screen resolution
  • 720 x 1280 px
  • 320 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
  • 256 MB RAM
  • 256 MB ROM
Memory card support
  • microSD
  • up to 64 GB
  • microSD
  • up to 16 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2100 mAh
  • Removable Li-Ion
  • 1480 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • upgradable to 5.0 (Lollipop)
  • Microsoft Windows Mobile 6.1 Standard
  • upgradable to Windows Mobile 6.5
Headphone jack
  • Yes
  • No
Display
Display — specifications for Studio X, i637 Jack.
SpecificationStudio Xi637 Jack
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 68.9 cm2
  • 17.8 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 66.5%
  • 25.0%
PPI /points per inch/
  • 294 PPI
  • 167 PPI
Camera and Video
Camera and Video — specifications for Studio X, i637 Jack.
SpecificationStudio Xi637 Jack
Rear camera, main
  • 8 MP
  • Single
  • 3.15 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 3.15 MP
Functions
  • LED flash
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 2 MP
  • Single
  • 0 MP,
Specifications
  • 2 MP
Unknown
Performance
Performance — specifications for Studio X, i637 Jack.
SpecificationStudio Xi637 Jack
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • 528 MHz
Graphics processor GPU
  • Mali-400
Unknown
General specs
General specs — specifications for Studio X, i637 Jack.
SpecificationStudio Xi637 Jack
Release date
  • 2015
  • January
  • 2009
  • May
Colors
  • Black
  • White
  • Blue
  • Gold
  • Pink
Unknown
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 120 EUR
Battery life
  • Stand by time- Up to 750 h (2G) / Up to 700 h (3G) Talking time- Up to 25 h (2G) / Up to 12 h (3G)
  • Stand by time- Up to 288 h Talking time- Up to 7 h
Communication and Connectivity
Communication and Connectivity — specifications for Studio X, i637 Jack.
SpecificationStudio Xi637 Jack
SIM card
  • Dual SIM (Mini-SIM/ Micro-SIM
  • dual stand-by)
  • Mini-SIM
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
Speed
  • HSPA 21.1/5.76 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • 2.0
Bluetooth
  • 4.0
  • A2DP
  • 2.0
  • A2DP
Harmful irradiation Unknown
  • SAR - 1.04 W/kg (head) 0.53 W/kg (body)
Music and Audio
Music and Audio — specifications for Studio X, i637 Jack.
SpecificationStudio Xi637 Jack
Radio
  • Stereo FM radio
  • No
Other features
Other features — specifications for Studio X, i637 Jack.
SpecificationStudio Xi637 Jack
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • Windows Media Player 10 -Windows Live
  • Yahoo!
  • AOL -Microsoft Outlook Mobile -Pocket Office -Voice memo/dial -Predictive text input - For AT&T