Samsung Galaxy A31 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 A31:
    OLED
    Z2:
    LCD
  • Weight

    Z2: 25 g lighter

    Galaxy A31:
    185 g
    Z2:
    160 g
  • Width

    Galaxy A31: 2.9 mm narrower

    Galaxy A31:
    73.1 mm
    Z2:
    76 mm
  • Screen diagonal

    Z2: 0.9 in smaller diagonal

    Galaxy A31:
    6.4 in
    Z2:
    5.5 in
  • Rear camera layout

    Galaxy A31:
    Quad
    Z2:
    Single
  • Height

    Z2: 6.3 mm shorter

    Galaxy A31:
    159.3 mm
    Z2:
    153 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 A31

    Height:
    159.3 mm +6.3 mm versus Z2
    Width:
    73.1 mm
    Depth:
    8.6 mm
  2. 2. Z2

    Height:
    153 mm
    Width:
    76 mm +2.9 mm versus Galaxy A31
    Depth:
    8.4 mm

Weight

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

  1. 1. Galaxy A31

    185 g

    +25 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 A31

    Screen diagonal:
    6.4 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    98.9 cm²
  2. 2. Z2

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

Galaxy A31 has approximately 18.6% 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 A31, Z2, compared at the same storage capacity.
StorageGalaxy A31Z2
64 GB 4 GB RAM Unknown
128 GB 4 / 6 GB RAM Alternative RAM configurations 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 A31

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 A31

    5000 mAh

    +2000 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 A312. Z2

Everyday essentials
Everyday essentials — specifications for Galaxy A31, Z2.
SpecificationGalaxy A31Z2
Dimensions (HxWxD)
  • 159.3 Х 73.1 Х 8.6 mm
  • 153 Х 76 Х 8.4 mm
Weight
  • 185 g
  • 160 g
Technology
  • Super AMOLED
  • LTPS IPS LCD
Screen size
  • 6.4" inch
  • 5.5" inch
Screen resolution
  • 1080 x 2400 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64GB 4GB RAM
  • 128GB 4GB 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.
  • 5000 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 Unknown
  • Mediatek MT6797 Helio X20 (20 nm)
NFC
  • Yes (market/region dependent)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy A31, Z2.
SpecificationGalaxy A31Z2
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 98.9 cm2
  • 83.4 cm2
Screen format
  • 20:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 84.9%
  • 71.7%
PPI /points per inch/
  • 411 PPI
  • 401 PPI
Screen protection Unknown
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for Galaxy A31, Z2.
SpecificationGalaxy A31Z2
Rear camera, main
  • 48 MP
  • Quad
  • 16 MP
  • Single
Camera specs
  • 48 MP
  • f/2.0
  • 26mm (wide)
  • 1/2.0"
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0"
  • 1.12µm -5 MP
  • f/2.4
  • (macro) -5 MP
  • (depth)
  • 16 MP
  • PDAF
Functions
  • LED flash
  • panorama
  • HDR
  • LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 20 MP
  • f/2.2
  • (wide)
  • 8 MP
Performance

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

Performance — specifications for Galaxy A31, Z2.
SpecificationGalaxy A31Z2
Processor CPU
  • Octa-core (2x2.0 GHz & 6x1.7 GHz)
  • Deca-core (2x2.3GHz Cortex-A72
  • 4x2.0GHz Cortex-A53
  • 4x1.4GHz Cortex-A53)
Graphics processor GPU Unknown
  • Mali-T880 MP4
Antutu 7 score * Unknown
  • 85326
General specs
General specs — specifications for Galaxy A31, Z2.
SpecificationGalaxy A31Z2
Release date
  • 2020
  • March 24
  • 2016
  • October
Colors
  • Prism Crush Black
  • Prism Crush Blue
  • Prism Crush Red
  • Prism Crush White
  • Silver
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 330 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy A31, Z2.
SpecificationGalaxy A31Z2
SIM card
  • Single SIM (Nano-SIM)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 (dual-SIM model only) -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
  • USB On-The-Go
  • Type-C 1.0 reversible connector
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Harmful irradiation
  • SAR EU - 0.49 W/kg (head) 1.68 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy A31, Z2.
SpecificationGalaxy A31Z2
Radio Unknown
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Galaxy A31, Z2.
SpecificationGalaxy A31Z2
Dop
  • Sensors Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 15W
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port