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Allview Twin X2 vs BLU C4

Compare recorded specifications, size and practical differences.

BLU C4

BLU C4

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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

    C4: 31.7 g lighter

    Twin X2:
    149.7 g
    C4:
    118 g
  • Width

    C4: 5.9 mm narrower

    Twin X2:
    70.1 mm
    C4:
    64.2 mm
  • Screen diagonal

    C4: 1.5 in smaller diagonal

    Twin X2:
    5.5 in
    C4:
    4 in
  • Depth

    Twin X2: 2.9 mm thinner

    Twin X2:
    8 mm
    C4:
    10.9 mm
  • Height

    C4: 16 mm shorter

    Twin X2:
    140.3 mm
    C4:
    124.3 mm
  • Release year

    Twin X2:
    2014
    C4:
    2018

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. Twin X2

    Height:
    140.3 mm +16 mm versus C4
    Width:
    70.1 mm +5.9 mm versus C4
    Depth:
    8 mm
  2. 2. C4

    Height:
    124.3 mm
    Width:
    64.2 mm
    Depth:
    10.9 mm +2.9 mm versus Twin X2

Weight

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

  1. 1. Twin X2

    149.7 g

    +31.7 g versus C4

  2. 2. C4

    118 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. Twin X2

    Twin X2: Screen geometry unavailable or conflicting.

  2. 2. C4

    Screen diagonal:
    4 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    45.5 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 Twin X2, C4, compared at the same storage capacity.
StorageTwin X2C4
8 GB 1 GB RAM Unknown
C4: Original memory entry

8 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. Twin X2

NFC:
See details Super AMOLED
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. C4

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

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. Twin X2

    1920 mAh

    +620 mAh versus C4

  2. 2. C4

    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. Twin X22. C4

Everyday essentials
Everyday essentials — specifications for Twin X2, C4.
SpecificationTwin X2C4
Dimensions (HxWxD)
  • 140.3 Х 70.1 Х 8 mm
  • 124.3 Х 64.2 Х 10.9 mm
Weight
  • 149.7 g
  • 118 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" 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
  • 8 GB
  • 512 MB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 64 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1920 mAh
  • Non-removable Li-Po
  • 1300 mAh
  • Li-Po
Operating system OS
  • Android 4.4.2 (KitKat)
  • Android 8.1 Oreo (Go edition)
NFC
  • Super AMOLED
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Twin X2, C4.
SpecificationTwin X2C4
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
  • 70.1%
  • 57.1%
PPI /points per inch/
  • 294 PPI
  • 233 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Twin X2, C4.
SpecificationTwin X2C4
Rear camera, main
  • 8 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 8 MP
  • AF
  • 5 MP
Functions
  • Dual-LED flash
  • panorama
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • 720p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
Performance
Performance — specifications for Twin X2, C4.
SpecificationTwin X2C4
Processor CPU
  • Octa-core 1.4 GHz Cortex-A7
  • Quad-core 1.3 GHz
Graphics processor GPU
  • Mali-450MP4
  • Mali-400
Antutu 7 score Legacy recorded score. Test conditions are unspecified; no new testing is implied.
  • 28932
  • 21722
General specs
General specs — specifications for Twin X2, C4.
SpecificationTwin X2C4
Release date
  • 2014
  • August
  • 2018
  • August
Colors
  • Black
  • Black
  • Gold
  • Blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 230 EUR
  • 50 USD
Battery life
  • Stand by time- Up to 192 h (2G) / Up to 192 h (3G) Talking time- Up to 7 h 40 min (2G) / Up to 6 h 40 min (3G)
  • Stand by time- Up to 400 h (2G) / Up to 450 h (3G) Talking time- Up to 18 h (2G) / Up to 13 h (3G)
Communication and Connectivity
Communication and Connectivity — specifications for Twin X2, C4.
SpecificationTwin X2C4
SIM card
  • Single SIM (Micro-SIM)Dual SIM (Micro-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2-3G - HSDPA 900 / 2100-4G - LTE
  • 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
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • 2.1
Music and Audio
Music and Audio — specifications for Twin X2, C4.
SpecificationTwin X2C4
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
Unknown
Other features
Other features — specifications for Twin X2, C4.
SpecificationTwin X2C4
Dop
  • Sensors Accelerometer
  • proximity
  • Sensors Accelerometer For USA