Samsung Galaxy M31 vs Sharp Z2

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.

  • Display technology

    OLED versus LCD

    Galaxy M31:
    OLED
    Z2:
    LCD
  • Weight

    Z2: 31 g lighter

    Galaxy M31:
    191 g
    Z2:
    160 g
  • Screen diagonal

    Z2: 0.9 in smaller diagonal

    Galaxy M31:
    6.4 in
    Z2:
    5.5 in
  • Chipset

    Galaxy M31:
    Exynos 9611 (10nm)
    Z2:
    Mediatek MT6797 Helio X20 (20 nm)
  • Rear camera layout

    Galaxy M31:
    Triple
    Z2:
    Single
  • Depth

    Z2: 0.5 mm thinner

    Galaxy M31:
    8.9 mm
    Z2:
    8.4 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 M31

    Height:
    159.2 mm +6.2 mm versus Z2
    Width:
    75.1 mm
    Depth:
    8.9 mm +0.5 mm versus Z2
  2. 2. Z2

    Height:
    153 mm
    Width:
    76 mm
    Depth:
    8.4 mm

Weight

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

  1. 1. Galaxy M31

    191 g

    +31 g versus Z2

  2. 2. Z2

    160 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 M31

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.5 cm²
  2. 2. Z2

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

Galaxy M31 has approximately 20.6% more rectangular screen area than Z2.

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 M31, Z2, compared at the same storage capacity.
StorageGalaxy M31Z2
64 GB 6 GB RAM Unknown
128 GB 6 GB RAM Unknown
Z2: Original memory entry

32 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 M31

NFC:
See details Yes (market/region dependent)
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated slot)

2. Z2

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 M31

    6000 mAh

    +3000 mAh versus Z2

  2. 2. Z2

    3000 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 M312. Z2

Everyday essentials
Everyday essentials — specifications for Galaxy M31, Z2.
SpecificationGalaxy M31Z2
Dimensions (HxWxD)
  • 159.2 Х 75.1 Х 8.9 mm
  • 153 Х 76 Х 8.4 mm
Weight
  • 191 g
  • 160 g
Technology
  • Super AMOLED
  • LTPS IPS LCD
Screen size
  • 6.4" inch
  • 5.5" 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.
  • 64GB 6GB RAM
  • 128GB 6GB RAM
  • 32 GB
  • 512GB 4GB
Memory card support
  • microSDXC (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 6000 mAh
  • Non-removable Li-Po
  • 3000 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 10.0; One UI 2.0
  • Android 6.0 (Marshmallow)
Chipset
  • Exynos 9611 (10nm)
  • Mediatek MT6797 Helio X20 (20 nm)
NFC
  • Yes (market/region dependent)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy M31, Z2.
SpecificationGalaxy M31Z2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 100.5 cm2
  • 83.4 cm2
Screen format
  • 19.5:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 84.1%
  • 71.7%
PPI /points per inch/
  • 403 PPI
  • 401 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for Galaxy M31, Z2.
SpecificationGalaxy M31Z2
Rear camera, main
  • 64 MP
  • Triple
  • 16 MP
  • Single
Camera specs
  • 64 MP
  • f/1.8
  • 26mm (wide)
  • 1/1.72"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 12mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • 25mm (macro)
  • 1/5.0"
  • (depth)
  • 16 MP
  • PDAF
Functions
  • HDR
  • LED flash
  • panorama
  • HDR
Video
  • 2160p@30fps
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 32 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 32 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.8''
  • 0.8µm
  • 8 MP
Performance

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

Performance — specifications for Galaxy M31, Z2.
SpecificationGalaxy M31Z2
Processor CPU
  • Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53)
  • Deca-core (2x2.3GHz Cortex-A72
  • 4x2.0GHz Cortex-A53
  • 4x1.4GHz Cortex-A53)
Graphics processor GPU
  • Mali-G72 MP3
  • Mali-T880 MP4
Antutu 7 score * Unknown
  • 85326
Antutu 8 score *
  • 194554
Unknown
General specs
General specs — specifications for Galaxy M31, Z2.
SpecificationGalaxy M31Z2
Release date
  • 2020
  • February 25
  • 2016
  • October
Colors
  • Ocean Blue
  • Space Black
  • Red
  • Silver
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 330 EUR
Body build
  • Glass front (Gorilla Glass 3)
  • plastic back
  • plastic frame
Unknown
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy M31, Z2.
SpecificationGalaxy M31Z2
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Hybrid Dual 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 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE
Speed
  • HSPA
  • LTE-A
  • HSPA
  • LTE
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
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • Type-C 1.0 reversible connector
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.52 W/kg (head) 0.69 W/kg (body) SAR EU - 0.52 W/kg (head) 0.69 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy M31, Z2.
SpecificationGalaxy M31Z2
Radio
  • FM radio
  • RDS
  • recording
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Galaxy M31, Z2.
SpecificationGalaxy M31Z2
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 15W - Versions: SM-M315F/DS
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port