Meizu Note 9 vs Oppo A31

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

    Note 9: 10 g lighter

    Note 9:
    170 g
    A31:
    180 g
  • Width

    Note 9: 1.1 mm narrower

    Note 9:
    74.4 mm
    A31:
    75.5 mm
  • Screen diagonal

    Note 9: 0.3 in smaller diagonal

    Note 9:
    6.2 in
    A31:
    6.5 in
  • Rear camera layout

    Note 9:
    Dual
    A31:
    Triple
  • Height

    Note 9: 10.8 mm shorter

    Note 9:
    153.1 mm
    A31:
    163.9 mm
  • Release year

    Note 9:
    2019
    A31:
    2020

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. Note 9

    Height:
    153.1 mm
    Width:
    74.4 mm
    Depth:
    8.7 mm
  2. 2. A31

    Height:
    163.9 mm +10.8 mm versus Note 9
    Width:
    75.5 mm +1.1 mm versus Note 9
    Depth:
    8.3 mm

Weight

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

  1. 1. Note 9

    170 g

  2. 2. A31

    180 g

    +10 g versus Note 9

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. Note 9

    Screen diagonal:
    6.2 in
    Aspect ratio (height:width):
    18.7:9
    Approximate rectangular screen area:
    96.9 cm²
  2. 2. A31

    Screen diagonal:
    6.5 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    102 cm²

A31 has approximately 5.3% more rectangular screen area than Note 9.

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 Note 9, A31, compared at the same storage capacity.
StorageNote 9A31
128 GB Unknown 4 GB RAM
Note 9: Original memory entry

64/128 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. Note 9

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

2. A31

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (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. Note 9

    4000 mAh

  2. 2. A31

    4230 mAh

    +230 mAh versus Note 9

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. Note 92. A31

Everyday essentials
Everyday essentials — specifications for Note 9, A31.
SpecificationNote 9A31
Dimensions (HxWxD)
  • 153.1 Х 74.4 Х 8.7 mm
  • 163.9 Х 75.5 Х 8.3 mm
Weight
  • 170 g
  • 180 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 6.2" inch
  • 6.5" inch
Screen resolution
  • 1080 x 2244 px
  • 720 x 1600 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64/128 GB
  • 6 GB RAM 64 GB
  • 512GB 4GB
  • 128GB 4GB RAM
Memory card support
  • No
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Ion
  • 4230 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie); Flyme 7.2
  • Android 9.0 (Pie); ColorOS 6.1
Chipset
  • Qualcomm SDM675 Snapdragon 675 (11 nm)
  • Mediatek MT6765V/CB Helio P35 (12nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Note 9, A31.
SpecificationNote 9A31
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 96.4 cm2
  • 102.0 cm2
Screen format
  • 18.7:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 84.7%
  • 82.4%
PPI /points per inch/
  • 403 PPI
  • 270 PPI
Camera and Video
Camera and Video — specifications for Note 9, A31.
SpecificationNote 9A31
Rear camera, main
  • 48 MP
  • Dual
  • 12 MP
  • Triple
Camera specs
  • 48 MP
  • f/1.7
  • 1/2''
  • 0.8µm
  • PDAF -5 MP
  • depth sensor
  • 12 MP
  • f/1.8
  • (wide)
  • PDAF -2 MP
  • f/2.4
  • 27mm (macro)
  • 1/5.0''
  • 1.75µm -2 MP
  • (depth)
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 20 MP
  • f/2.0
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for Note 9, A31.
SpecificationNote 9A31
Processor CPU
  • Octa-core (2x2.0 GHz Kryo 460 Gold & 6x1.7 GHz Kryo 460 Silver)
  • Octa-core (4x2.3 GHz Cortex-A53 & 4x1.8 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 612
  • PowerVR GE8320
GeekBench 4 Single Core *
  • 2398
Unknown
GeekBench 4 Multi-Core *
  • 5973
Unknown
Antutu 8 score *
  • 213486
  • 105221
GeekBench 5 Single Core *
  • 512
Unknown
GeekBench 5 Multi-Core *
  • 1611
Unknown
General specs
General specs — specifications for Note 9, A31.
SpecificationNote 9A31
Release date
  • 2019
  • March
  • 2020
  • February 13
Colors
  • Black
  • Blue
  • White
  • Fantasy White
  • Mystery Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 200 EUR
  • 180 EUR
Body build Unknown
  • Glass front
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Note 9, A31.
SpecificationNote 9A31
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE (unspecified)
Speed
  • HSPA
  • LTE-A
  • HSPA 42.2/5.76 Mbps
  • LTE-A
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
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
  • BDS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 5.0
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Note 9, A31.
SpecificationNote 9A31
Radio
  • No
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • 480 nits typ. brightness
Other features
Other features — specifications for Note 9, A31.
SpecificationNote 9A31
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 18W (mCharge)
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • proximity
  • compass