Infinix Zero 4 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: 19.5 g lighter

    Zero 4:
    167.5 g
    i640:
    148 g
  • Width

    i640: 15 mm narrower

    Zero 4:
    76 mm
    i640:
    61 mm
  • Screen diagonal

    i640: 3.1 in smaller diagonal

    Zero 4:
    5.5 in
    i640:
    2.4 in
  • Depth

    Zero 4: 9.1 mm thinner

    Zero 4:
    7.8 mm
    i640:
    16.9 mm
  • Height

    i640: 57.1 mm shorter

    Zero 4:
    151.5 mm
    i640:
    94.4 mm
  • Release year

    Zero 4:
    2017
    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. Zero 4

    Height:
    151.5 mm +57.1 mm versus i640
    Width:
    76 mm +15 mm versus i640
    Depth:
    7.8 mm
  2. 2. i640

    Height:
    94.4 mm
    Width:
    61 mm
    Depth:
    16.9 mm +9.1 mm versus Zero 4

Weight

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

  1. 1. Zero 4

    167.5 g

    +19.5 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. Zero 4

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. i640

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

Zero 4 has approximately 367.5% 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 Zero 4, i640, compared at the same storage capacity.
StorageZero 4i640
32 GB 3 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. Zero 4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (dedicated slot)

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. Zero 4

    3200 mAh

    +2200 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. Zero 42. i640

Everyday essentials
Everyday essentials — specifications for Zero 4, i640.
SpecificationZero 4i640
Dimensions (HxWxD)
  • 151.5 Х 76 Х 7.8 mm
  • 94.4 Х 61 Х 16.9 mm
Weight
  • 167.5 g
  • 148 g
Technology
  • IPS LCD
  • TFT
Screen size
  • 5.5" inch
  • 2.4" inch
Screen resolution
  • 1080 x 1920 px
  • 320 x 240 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 64 MB RAM
  • 128 MB ROM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3200 mAh
  • Non-removable Li-Ion
  • 1000 mAh
  • Removable Li-Ion
Operating system OS
  • Android 6.0 (Marshmallow)
  • Microsoft Windows Mobile 6.0 Standard
Chipset
  • Mediatek MT6753 (28 nm)
Unknown
Headphone jack
  • Yes
  • No
Display
Display — specifications for Zero 4, i640.
SpecificationZero 4i640
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 65K
Screen area
  • 83.4 cm2
  • 17.8 cm2
Screen format
  • 16:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 72.4%
  • 31.0%
PPI /points per inch/
  • 401 PPI
  • 167 PPI
Screen protection
  • Corning Gorilla Glass 3
Unknown
Camera and Video
Camera and Video — specifications for Zero 4, i640.
SpecificationZero 4i640
Rear camera, main
  • 16 MP
  • Single
  • 2 MP
  • Single
Camera specs
  • 16 MP
  • f/2.0
  • OIS
  • Laser AF/ PDAF
  • 2 MP
Functions
  • LED flash
Unknown
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 8 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • VGA videocall camera
Performance

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

Performance — specifications for Zero 4, i640.
SpecificationZero 4i640
Processor CPU
  • Octa-core 1.3 GHz Cortex-A53
  • 32-bit Intel XScale PXA270 416 MHz
Graphics processor GPU
  • Mali-T720MP3
Unknown
Antutu 7 score *
  • 22135
Unknown
GeekBench 4 Single Core *
  • 632
Unknown
GeekBench 4 Multi-Core *
  • 2913
Unknown
GeekBench 5 Single Core *
  • 110
Unknown
GeekBench 5 Multi-Core *
  • 418
Unknown
General specs
General specs — specifications for Zero 4, i640.
SpecificationZero 4i640
Release date
  • 2017
  • March
  • 2008
  • February
Colors
  • Anthracite Grey
  • Champagne Gold
  • Barbie Pink
  • Filber Brown
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 150 EUR
Battery life Unknown
  • Stand by time- Up to 250 h Talking time- Up to 6 h
Communication and Connectivity
Communication and Connectivity — specifications for Zero 4, i640.
SpecificationZero 4i640
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 HSDPA 850 / 1700 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300) LTE band 2(1900)
  • 4(1700/2100)
  • 28(700)
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • No
GPS
  • Yes
  • with A-GPS
  • No
USB
  • microUSB 2.0
  • USB On-The-Go
  • 1.1
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 2.0
Harmful irradiation Unknown
  • SAR - 1.18 W/kg (head) 1.12 W/kg (body)
Music and Audio
Music and Audio — specifications for Zero 4, i640.
SpecificationZero 4i640
Radio
  • FM radio
  • No
Others Unknown
  • Jog Dial
Other features
Other features — specifications for Zero 4, i640.
SpecificationZero 4i640
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • WMV/3GP/MP4 player -WMA/MP3/AAC+ player -Organizer -Pocket Office -Voice memo