16points

BLU D440

34points

Cat S30

81points

Samsung Galaxy S7 edge (Exynos 8890 Octa)

96points

Samsung Galaxy S9 (Qualcomm Snapdragon 845)

BLU D440
Cat S30
Samsung Galaxy S7 edge (Exynos 8890 Octa)
Comparison winner
Samsung Galaxy S9 (Qualcomm Snapdragon 845)
vs
vs
vs

138 facts in comparison

BLU D440 vs Cat S30 vs Samsung Galaxy S7 edge (Exynos 8890 Octa) vs Samsung Galaxy S9 (Qualcomm Snapdragon 845)

BLU D440
Cat S30
Samsung Galaxy S7 edge (Exynos 8890 Octa)
Samsung Galaxy S9 (Qualcomm Snapdragon 845)
BLU D440
Cat S30
Samsung Galaxy S7 edge (Exynos 8890 Octa)
Samsung Galaxy S9 (Qualcomm Snapdragon 845)

Why is BLU D440 better than Cat S30 & Samsung Galaxy S7 edge (Exynos 8890 Octa) & Samsung Galaxy S9 (Qualcomm Snapdragon 845)?

  • Weight
    145gvs181,157,163g
  • Has a radio
  • Width
    67mmvs72.74,72.6,68.7mm
  • Height
    133mmvs141.9,150.9,147.7mm

Why is Cat S30 better than BLU D440 & Samsung Galaxy S7 edge (Exynos 8890 Octa) & Samsung Galaxy S9 (Qualcomm Snapdragon 845)?

    Why is Samsung Galaxy S7 edge (Exynos 8890 Octa) better than BLU D440 & Cat S30 & Samsung Galaxy S9 (Qualcomm Snapdragon 845)?

    • Thickness
      7.7mmvs10.8,13.25,8.5mm
    • Volume
      84.36cm³vs96.2388,136.7639295,86.249415cm³
    • Has AF tracking
    • Shoots raw

    Why is Samsung Galaxy S9 (Qualcomm Snapdragon 845) better than BLU D440 & Cat S30 & Samsung Galaxy S7 edge (Exynos 8890 Octa)?

    • Pixel density
      570ppivs245,218,534ppi
    • Screen size
      5.8"vs4.5,4.5,5.5"
    • Resolution
      1440 x 2960pxvs540 x 960,480 x 854,1440 x 2560px
    • Front camera megapixels
      8MPvs1.3,2,5MP
    • Has stereo speakers
    • Download speed
      1200MBits/svs21,150,450MBits/s
    • Video recording (main camera)
      2160 x 60fpsvs1080 x 30,1080 x 60,2160 x 30fps
    • Bluetooth version
      5vs4,4.1,4.2

    Videos

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    Top specs and features

    relevant

    Design

    1.Is dustproof and water resistant
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Dustproof/water resistant at depth equal to or greater than 1 meter.

    2.Weather sealed
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Device is protected with extra seals to prevent failures due to any kind of weather.

    3.weight

    145g

    181g

    157g

    163g

    Best

    Palm Phone

    62.5g

    4.thickness

    10.8mm

    13.25mm

    7.7mm

    8.5mm

    Best

    Asus Zenfone AR 64GB

    4.6mm

    5.width

    67mm

    72.74mm

    72.6mm

    68.7mm

    Best

    Vertu Signature for Bentley

    42mm

    6.height

    133mm

    141.9mm

    150.9mm

    147.7mm

    Best

    Motorola FlipOut

    67mm

    relevant

    Display

    1.resolution

    540 x 960px

    480 x 854px

    1440 x 2560px

    1440 x 2960px

    Best

    Sony Xperia H8541

    2160 x 4320px

    2.pixel density

    245ppi

    218ppi

    534ppi

    570ppi

    Best

    Sony Xperia H8541

    847ppi

    3.has branded damage resistant glass
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Damage resistant glass (such as Corning Gorilla Glass or Asahi Dragontrail Glass) is thin, lightweight, and can withstand high levels of force.

    4.screen size

    4.5"

    4.5"

    5.5"

    5.8"

    The bigger the screen size is, the better the user experience.

    Best

    Huawei Mate 20 X

    7.2"

    5.every pixel has three subpixels
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    The device has a display with three full subpixels per pixel, resulting in a sharp and crisp picture. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.

    6.Has an AMOLED display
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    AMOLED displays, also known as active matrix OLED displays, offer higher refresh rates and consume less power than other types of displays.

    relevant

    Performance

    1.Has integrated LTE
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    The system on a chip (SoC) has an integrated LTE cellular chip. LTE is capable of downloading at faster speeds than older, 3G technology.

    2.Has integrated graphics
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    With integrated graphics you don’t need to buy a separate graphics card.

    3.Uses big.LITTLE technology
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Using big.LITTLE technology, a chip can switch between two sets of processor cores in order to maximise performance and battery life. For example, when playing a game the more powerful cores will be used to increase performance, whereas checking email will use the less powerful cores to maximise battery life.

    4.Has out-of-order execution
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Out-of-order execution is used in CPUs to make use of instruction cycles that would normally be wasted due to delays.

    5.RAM

    1GB

    1GB

    4GB

    4GB

    Best

    ZTE Nubia Red Magic Mars

    10GB

    6.Has AES
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    AES is used to speed up encryption and decryption.

    relevant

    Cameras

    1.megapixels

    5MP

    5MP

    12MP

    12MP

    Best

    Huawei Mate 20 X

    40 & 20 & 8MP

    2.has built-in optical image stabilization
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Optical image stabilization uses gyroscopic sensors to detect the vibrations of the camera. The lens adjusts the optical path accordingly, ensuring that any type of motion blur is corrected before the sensor captures the image.

    3.Has laser autofocus
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    A laser autofocus system quickly determines the depth of the subject you want to focus on, allowing you to take photos much faster.

    For example

    Huawei Mate 20 X

    4.video recording (main camera)

    1080 x 30fps

    1080 x 60fps

    2160 x 30fps

    2160 x 60fps

    The maximum resolution available for videos shot with the main camera. Although it may be possible to choose among other frame rates, those recordings usually have lower resolutions.

    Best

    Crosscall Trekker-X4

    1080 x 120fps

    5.front camera megapixels

    1.3MP

    2MP

    5MP

    8MP

    Best

    Wiko View2 Pro

    16 & 16MP

    6.Has a dual-lens (or multi-lens) main camera
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    A dual-lens camera captures two images and overlays them. This technology creates sharper images, especially in low light conditions, and allows you to use effects such as softening the background.

    For example

    Kyocera DuraForce Pro 2

    relevant

    Audio

    1.has stereo speakers
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.

    2.has a socket for a 3.5 mm audio jack
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    With a standard mini jack socket, you can use the device with most headphones.

    3.has a radio
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    It works as an FM radio with included headsets

    4.has dedicated media keys
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    The music player can be blindly used.

    For example

    ZTE Nubia X

    relevant

    Battery

    1.battery power

    1800mAh

    3000mAh

    3600mAh

    3000mAh

    Best

    Energizer Power Max P16K Pro

    16000mAh

    2.Has an ultra power save mode
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    The device can save battery by using just a black-and-white screen with a few basic icons. This means even with a small amount of battery, you can keep the device running for a long time.

    For example

    Oppo A7

    3.has a removable battery
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    The battery is removable and can be replaced by the user if broken.

    For example

    Blu Advance L4

    4.wireless charging
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.

    5.Supports fast charging
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Fast charging technologies, like Qualcomm’s Quick Charge or MediaTek’s Pump Express, are used to reduce the time it takes to charge a device. For example, with Quick Charge 3.0, the battery can be charged to 50% in just 30 minutes.

    6.has a battery level indicator
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    An indicator shows you when the device has low battery.

    relevant

    Features

    1.Is a multi-user system
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)
    2.Has offline voice recognition
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Offline voice recognition enables you to perform voice actions, like dictating texts or using various voice commands, without an internet connection.

    3.Supports Java
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)
    4.Allows app installs on the device's external storage
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)
    5.Is free and open source
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    Anyone is free to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software.

    6.Has sharing intents
    BLU D440
    Cat S30
    Samsung Galaxy S7 edge (Exynos 8890 Octa)
    Samsung Galaxy S9 (Qualcomm Snapdragon 845)

    If an app has sharing capabilities and the developers have indicated it, the app will automatically appear in your list of sharing options. Some OS’s limit direct sharing options to a select few apps, which means you have to open apps separately in order to upload the files you want to share.

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