Samsung Galaxy M40 vs Xiaomi Redmi 3x

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

    Redmi 3x: 24 g lighter

    Galaxy M40:
    168 g
    Redmi 3x:
    144 g
  • Width

    Redmi 3x: 4.3 mm narrower

    Galaxy M40:
    73.9 mm
    Redmi 3x:
    69.6 mm
  • Screen diagonal

    Redmi 3x: 1.3 in smaller diagonal

    Galaxy M40:
    6.3 in
    Redmi 3x:
    5 in
  • Chipset

    Galaxy M40:
    Qualcomm SDM675 Snapdragon 675 (11 nm)
    Redmi 3x:
    Qualcomm MSM8937 Snapdragon 430 (28 nm)
  • Rear camera layout

    Galaxy M40:
    Triple
    Redmi 3x:
    Single
  • Depth

    Galaxy M40: 0.6 mm thinner

    Galaxy M40:
    7.9 mm
    Redmi 3x:
    8.5 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 +16 mm versus Redmi 3x
    Width:
    73.9 mm +4.3 mm versus Redmi 3x
    Depth:
    7.9 mm
  2. 2. Redmi 3x

    Height:
    139.3 mm
    Width:
    69.6 mm
    Depth:
    8.5 mm +0.6 mm versus Galaxy M40

Weight

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

  1. 1. Galaxy M40

    168 g

    +24 g versus Redmi 3x

  2. 2. Redmi 3x

    144 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. Redmi 3x

    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 Redmi 3x.

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, Redmi 3x, compared at the same storage capacity.
StorageGalaxy M40Redmi 3x
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. Redmi 3x

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses SIM 2 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

  2. 2. Redmi 3x

    4100 mAh

    +600 mAh versus Galaxy M40

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. Redmi 3x

Everyday essentials
Everyday essentials — specifications for Galaxy M40, Redmi 3x.
SpecificationGalaxy M40Redmi 3x
Dimensions (HxWxD)
  • 155.3 Х 73.9 Х 7.9 mm
  • 139.3 Х 69.6 Х 8.5 mm
Weight
  • 168 g
  • 144 g
Technology
  • PLS TFT
  • IPS LCD
Screen size
  • 6.3" inch
  • 5" inch
Screen resolution
  • 1080 x 2340 px
  • 720 x 1280 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
  • 32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 1 TB (uses shared SIM slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3500 mAh
  • Non-removable Li-Po
  • 4100 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 9.0 (Pie); One UI
  • Android 6.0.1 (Marshmallow); MIUI 7.3
Chipset
  • Qualcomm SDM675 Snapdragon 675 (11 nm)
  • Qualcomm MSM8937 Snapdragon 430 (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for Galaxy M40, Redmi 3x.
SpecificationGalaxy M40Redmi 3x
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%
  • 71.1%
PPI /points per inch/
  • 409 PPI
  • 294 PPI
Screen protection
  • Corning Gorilla Glass (unspecified)
Unknown
Camera and Video
Camera and Video — specifications for Galaxy M40, Redmi 3x.
SpecificationGalaxy M40Redmi 3x
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
  • PDAF
  • f/2.0
Functions
  • HDR
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for Galaxy M40, Redmi 3x.
SpecificationGalaxy M40Redmi 3x
Processor CPU
  • Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
  • Octa-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • Adreno 612
  • Adreno 505
Antutu 7 score *
  • 177326
  • 35195
GeekBench 4 Single Core *
  • 2361
  • 632
GeekBench 4 Multi-Core *
  • 6438
  • 1774
GeekBench 4 RenderScript * Unknown
  • 1822
General specs
General specs — specifications for Galaxy M40, Redmi 3x.
SpecificationGalaxy M40Redmi 3x
Release date
  • 2019
  • June
  • 2016
  • June
Colors
  • Sweater Blue
  • Midnight Blue
  • Gold
  • Dark Gray
  • Silver
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
  • 170 EUR
Body build Unknown
  • aluminum body
  • plastic ends
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy M40, Redmi 3x.
SpecificationGalaxy M40Redmi 3x
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Hybrid Dual SIM (Micro-SIM/Nano-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 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 TD-SCDMA CDMA2000 1xEV-DO -4G - LTE band 1(2100)
  • 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
  • EV-DO Rev.A 3.1 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 b/g/n
  • Wi-Fi 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
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.1
  • A2DP
Harmful irradiation
  • SAR - 0.20 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy M40, Redmi 3x.
SpecificationGalaxy M40Redmi 3x
Radio
  • FM radio
  • 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, Redmi 3x.
SpecificationGalaxy M40Redmi 3x
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 Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging