Samsung Galaxy M40 vs Xiaomi Mi 4i

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

    Mi 4i: 38 g lighter

    Galaxy M40:
    168 g
    Mi 4i:
    130 g
  • Width

    Mi 4i: 4.3 mm narrower

    Galaxy M40:
    73.9 mm
    Mi 4i:
    69.6 mm
  • Screen diagonal

    Mi 4i: 1.3 in smaller diagonal

    Galaxy M40:
    6.3 in
    Mi 4i:
    5 in
  • Chipset

    Galaxy M40:
    Qualcomm SDM675 Snapdragon 675 (11 nm)
    Mi 4i:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Rear camera layout

    Galaxy M40:
    Triple
    Mi 4i:
    Single
  • Height

    Mi 4i: 17.2 mm shorter

    Galaxy M40:
    155.3 mm
    Mi 4i:
    138.1 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 +17.2 mm versus Mi 4i
    Width:
    73.9 mm +4.3 mm versus Mi 4i
    Depth:
    7.9 mm
  2. 2. Mi 4i

    Height:
    138.1 mm
    Width:
    69.6 mm
    Depth:
    7.8 mm

Weight

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

  1. 1. Galaxy M40

    168 g

    +38 g versus Mi 4i

  2. 2. Mi 4i

    130 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. Mi 4i

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²

Galaxy M40 has approximately 41.4% more rectangular screen area than Mi 4i.

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 Galaxy M40, Mi 4i, compared at the same storage capacity.
StorageGalaxy M40Mi 4i
16 GB Unknown 2 GB RAM
32 GB Unknown 2 GB RAM
Galaxy M40: Original memory entry

128 GB · 6 GB RAM 64 GB · 512GB 4GB

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. Mi 4i

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
No

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

    +380 mAh versus Mi 4i

  2. 2. Mi 4i

    3120 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. Mi 4i

Everyday essentials
Everyday essentials — specifications for Galaxy M40, Mi 4i.
SpecificationGalaxy M40Mi 4i
Dimensions (HxWxD)
  • 155.3 Х 73.9 Х 7.9 mm
  • 138.1 Х 69.6 Х 7.8 mm
Weight
  • 168 g
  • 130 g
Technology
  • PLS TFT
  • IPS LCD
Screen size
  • 6.3" inch
  • 5" inch
Screen resolution
  • 1080 x 2340 px
  • 1080 x 1920 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
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 1 TB (uses shared SIM slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Po
  • 3120 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 9.0 (Pie); One UI
  • Android 5.0.2 (Lollipop); MIUI 8.2
Chipset
  • Qualcomm SDM675 Snapdragon 675 (11 nm)
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for Galaxy M40, Mi 4i.
SpecificationGalaxy M40Mi 4i
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 97.4 cm2
  • 68.9 cm2
Screen format
  • 19.5:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 84.9%
  • 71.7%
PPI /points per inch/
  • 409 PPI
  • 441 PPI
Screen protection
  • Corning Gorilla Glass (unspecified)
  • Corning scratch-resistant glass
Camera and Video
Camera and Video — specifications for Galaxy M40, Mi 4i.
SpecificationGalaxy M40Mi 4i
Rear camera, main
  • 32 MP
  • Triple
  • 13 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
  • 13 MP
  • AF
  • f/2.0
Functions
  • HDR
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
  • 480p@120fps
Front camera, selfie
  • 16 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • 5 MP
  • f/1.8
Performance

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

Performance — specifications for Galaxy M40, Mi 4i.
SpecificationGalaxy M40Mi 4i
Processor CPU
  • Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
  • Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 612
  • Adreno 405
Antutu 7 score *
  • 177326
  • 40156
GeekBench 4 Single Core *
  • 2361
  • 617
GeekBench 4 Multi-Core *
  • 6438
  • 1374
GeekBench 4 RenderScript * Unknown
  • 1404
General specs
General specs — specifications for Galaxy M40, Mi 4i.
SpecificationGalaxy M40Mi 4i
Release date
  • 2019
  • June
  • 2015
  • April
Colors
  • Sweater Blue
  • Midnight Blue
  • Dark Gray
  • Black
  • White
  • Yellow
  • Blue
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
  • 260 EUR
Battery life Unknown
  • Talking time- Up to 35 h (3G)
Body build Unknown
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy M40, Mi 4i.
SpecificationGalaxy M40Mi 4i
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Micro-SIM
  • dual stand-by)
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 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 1900 / 2100 TD-SCDMA -4G - LTE band 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 400/50 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
  • USB Host
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.1
  • A2DP
Harmful irradiation
  • SAR - 0.20 W/kg (head)
  • SAR - 1.29 W/kg (head)
Music and Audio
Music and Audio — specifications for Galaxy M40, Mi 4i.
SpecificationGalaxy M40Mi 4i
Radio
  • FM radio
  • Stereo FM radio
Others
  • Active noise cancellation with dedicated mic -Dolby Atmos sound
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Galaxy M40, Mi 4i.
SpecificationGalaxy M40Mi 4i
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M405F/DS
  • SM-M405FN/DS (Global)
  • SM-M405G/DS
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 40% in 60 min (Quick Charge)