Samsung Galaxy M40 vs Samsung i550

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

    i550: 59 g lighter

    Galaxy M40:
    168 g
    i550:
    109 g
  • Width

    i550: 20.9 mm narrower

    Galaxy M40:
    73.9 mm
    i550:
    53 mm
  • Screen diagonal

    i550: 3.7 in smaller diagonal

    Galaxy M40:
    6.3 in
    i550:
    2.6 in
  • Chipset

    Galaxy M40:
    Qualcomm SDM675 Snapdragon 675 (11 nm)
    i550:
    TI OMAP 2430
  • Rear camera layout

    Galaxy M40:
    Triple
    i550:
    Single
  • Depth

    Galaxy M40: 5.9 mm thinner

    Galaxy M40:
    7.9 mm
    i550:
    13.8 mm

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. Galaxy M40

    Height:
    155.3 mm +40.3 mm versus i550
    Width:
    73.9 mm +20.9 mm versus i550
    Depth:
    7.9 mm
  2. 2. i550

    Height:
    115 mm
    Width:
    53 mm
    Depth:
    13.8 mm +5.9 mm versus Galaxy M40

Weight

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

  1. 1. Galaxy M40

    168 g

    +59 g versus i550

  2. 2. i550

    109 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. Galaxy M40

    Screen diagonal:
    6.3 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    97.4 cm²
  2. 2. i550

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

Galaxy M40 has approximately 365.4% more rectangular screen area than i550.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Galaxy M40: Original memory entry

128 GB · 6 GB RAM 64 GB · 512GB 4GB

i550: Original memory entry

150 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Galaxy M40

NFC:
Yes
Headphone jack:
No
Memory card support:
See details microSD · up to 1 TB (uses shared SIM slot)

2. i550

NFC:
Unknown
Headphone jack:
Yes
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. Galaxy M40

    3500 mAh

    +2300 mAh versus i550

  2. 2. i550

    1200 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. Galaxy M402. i550

Everyday essentials
Everyday essentials — specifications for Galaxy M40, i550.
SpecificationGalaxy M40i550
Dimensions (HxWxD)
  • 155.3 Х 73.9 Х 7.9 mm
  • 115 Х 53 Х 13.8 mm
Weight
  • 168 g
  • 109 g
Technology
  • PLS TFT
  • TFT
Screen size
  • 6.3" inch
  • 2.6" inch
Screen resolution
  • 1080 x 2340 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128 GB
  • 6 GB RAM 64 GB
  • 512GB 4GB
  • 150 MB
Memory card support
  • microSD
  • up to 1 TB (uses shared SIM slot)
  • microSD (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Po
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android 9.0 (Pie); One UI
  • Symbian OS 9.2
  • Series 60 v3.1 UI
Chipset
  • Qualcomm SDM675 Snapdragon 675 (11 nm)
  • TI OMAP 2430
NFC
  • Yes
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for Galaxy M40, i550.
SpecificationGalaxy M40i550
Touchscreen
  • capacitive touchscreen
Unknown
Display colors
  • 16M
  • 256K
Screen area
  • 97.4 cm2
  • 20.9 cm2
Screen format
  • 19.5:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 84.9%
  • 34.3%
PPI /points per inch/
  • 409 PPI
  • 154 PPI
Screen protection
  • Corning Gorilla Glass (unspecified)
Unknown
Camera and Video
Camera and Video — specifications for Galaxy M40, i550.
SpecificationGalaxy M40i550
Rear camera, main
  • 32 MP
  • Triple
  • 3.15 MP
  • Single
Camera specs
  • 32 MP
  • f/1.7
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 12mm (ultrawide)
  • 1.12µm
  • PDAF -5 MP
  • depth sensor
  • 3.15 MP
  • AF
Functions
  • HDR
  • LED flash
Video
  • 1080p@30fps
  • Yes
Front camera, selfie
  • 16 MP
  • Single
  • 0.3 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • VGA videocall camera
Performance

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

Performance — specifications for Galaxy M40, i550.
SpecificationGalaxy M40i550
Processor CPU
  • Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
  • 330 MHz ARM 1136
Graphics processor GPU
  • Adreno 612
  • PowerVR MBX
Antutu 7 score *
  • 177326
Unknown
GeekBench 4 Single Core *
  • 2361
Unknown
GeekBench 4 Multi-Core *
  • 6438
Unknown
General specs
General specs — specifications for Galaxy M40, i550.
SpecificationGalaxy M40i550
Release date
  • 2019
  • June
  • 2007
  • August
Colors
  • Sweater Blue
  • Midnight Blue
  • Black
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
  • 130 EUR
Battery life Unknown
  • Stand by time- Up to 360 h Talking time- Up to 8 h
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy M40, i550.
SpecificationGalaxy M40i550
SIM card
  • Hybrid Dual SIM (Nano-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 / 1900 / 2100 -4G - LTE (unspecified)
  • Show all network frequencies: -2G - GSM 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 400/50 Mbps
  • HSPA 3.6/0.384 Mbps
GPRS
  • Yes
  • Class 12
Edge
  • Yes
  • Class 12
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g (Samsung i550w only)
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
  • A2DP
Harmful irradiation
  • SAR - 0.20 W/kg (head)
  • SAR - 0.32 W/kg (head) 0.41 W/kg (body) SAR EU - 0.72 W/kg (head)
Music and Audio
Music and Audio — specifications for Galaxy M40, i550.
SpecificationGalaxy M40i550
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic -Dolby Atmos sound
Unknown
Other features
Other features — specifications for Galaxy M40, i550.
SpecificationGalaxy M40i550
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M405F/DS
  • SM-M405FN/DS (Global)
  • SM-M405G/DS
  • WMV/RV/MP4/3GP player -MP3/WMA/WAV/RA/AAC/M4A player -Organizer -Document viewer (Word
  • Excel
  • PowerPoint
  • PDF) - Trackball - Also version Samsung i550w with WLAN