BLU Studio X vs Samsung i640

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

    i640: 6 g lighter

    Studio X:
    154 g
    i640:
    148 g
  • Width

    i640: 11 mm narrower

    Studio X:
    72 mm
    i640:
    61 mm
  • Screen diagonal

    i640: 2.6 in smaller diagonal

    Studio X:
    5 in
    i640:
    2.4 in
  • Depth

    Studio X: 6.4 mm thinner

    Studio X:
    10.5 mm
    i640:
    16.9 mm
  • Height

    i640: 49.6 mm shorter

    Studio X:
    144 mm
    i640:
    94.4 mm
  • Release year

    Studio X:
    2015
    i640:
    2008

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 +49.6 mm versus i640
    Width:
    72 mm +11 mm versus i640
    Depth:
    10.5 mm
  2. 2. i640

    Height:
    94.4 mm
    Width:
    61 mm
    Depth:
    16.9 mm +6.4 mm versus Studio X

Weight

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

  1. 1. Studio X

    154 g

    +6 g versus i640

  2. 2. i640

    148 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. i640

    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 i640.

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, i640, compared at the same storage capacity.
StorageStudio Xi640
8 GB 1 GB RAM Unknown
i640: 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. Studio X

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

2. i640

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

    +1100 mAh versus i640

  2. 2. i640

    1000 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. i640

Everyday essentials
Everyday essentials — specifications for Studio X, i640.
SpecificationStudio Xi640
Dimensions (HxWxD)
  • 144 Х 72 Х 10.5 mm
  • 94.4 Х 61 Х 16.9 mm
Weight
  • 154 g
  • 148 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
  • 64 MB RAM
  • 128 MB ROM
Memory card support
  • microSD
  • up to 64 GB
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2100 mAh
  • Removable Li-Ion
  • 1000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 4.4.2 (KitKat)
  • upgradable to 5.0 (Lollipop)
  • Microsoft Windows Mobile 6.0 Standard
Headphone jack
  • Yes
  • No
Display
Display — specifications for Studio X, i640.
SpecificationStudio Xi640
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%
  • 31.0%
PPI /points per inch/
  • 294 PPI
  • 167 PPI
Camera and Video
Camera and Video — specifications for Studio X, i640.
SpecificationStudio Xi640
Rear camera, main
  • 8 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 2 MP
Functions
  • LED flash
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 2 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 2 MP
  • VGA videocall camera
Performance
Performance — specifications for Studio X, i640.
SpecificationStudio Xi640
Processor CPU
  • Quad-core 1.3 GHz Cortex-A7
  • 32-bit Intel XScale PXA270 416 MHz
Graphics processor GPU
  • Mali-400
Unknown
General specs
General specs — specifications for Studio X, i640.
SpecificationStudio Xi640
Release date
  • 2015
  • January
  • 2008
  • February
Colors
  • Black
  • White
  • Blue
  • Gold
  • Pink
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 120 EUR
  • 150 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 250 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for Studio X, i640.
SpecificationStudio Xi640
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 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
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • 1.1
Bluetooth
  • 4.0
  • A2DP
  • 2.0
Harmful irradiation Unknown
  • SAR - 1.18 W/kg (head) 1.12 W/kg (body)
Music and Audio
Music and Audio — specifications for Studio X, i640.
SpecificationStudio Xi640
Radio
  • Stereo FM radio
  • No
Others Unknown
  • Jog Dial
Other features
Other features — specifications for Studio X, i640.
SpecificationStudio Xi640
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • WMV/3GP/MP4 player -WMA/MP3/AAC+ player -Organizer -Pocket Office -Voice memo