Samsung Galaxy A9 Star vs Xiaomi Mi 9

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 9: 18 g lighter

    Galaxy A9 Star:
    191 g
    Mi 9:
    173 g
  • Width

    Mi 9: 2.3 mm narrower

    Galaxy A9 Star:
    77 mm
    Mi 9:
    74.7 mm
  • Chipset

    Galaxy A9 Star:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
    Mi 9:
    Qualcomm SDM855 Snapdragon 855 (7 nm)
  • Rear camera layout

    Galaxy A9 Star:
    Dual
    Mi 9:
    Triple
  • Height

    Mi 9: 4.9 mm shorter

    Galaxy A9 Star:
    162.4 mm
    Mi 9:
    157.5 mm
  • Release year

    Galaxy A9 Star:
    2018
    Mi 9:
    2019

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 A9 Star

    Height:
    162.4 mm +4.9 mm versus Mi 9
    Width:
    77 mm +2.3 mm versus Mi 9
    Depth:
    7.6 mm
  2. 2. Mi 9

    Height:
    157.5 mm
    Width:
    74.7 mm
    Depth:
    7.6 mm

Weight

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

  1. 1. Galaxy A9 Star

    191 g

    +18 g versus Mi 9

  2. 2. Mi 9

    173 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 A9 Star

    Screen diagonal:
    6.3 in
    Aspect ratio (height:width):
    18.5:9
    Approximate rectangular screen area:
    100.7 cm²
  2. 2. Mi 9

    Screen diagonal:
    6.39 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.2 cm²

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Galaxy A9 Star: Original memory entry

64 GB · 4/6 GB RAM

Mi 9: Original memory entry

64/128 GB · 6/8 GB RAM

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 A9 Star

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB (uses SIM 2 slot)

2. Mi 9

NFC:
Yes
Headphone jack:
No
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 A9 Star

    3700 mAh

    +400 mAh versus Mi 9

  2. 2. Mi 9

    3300 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 A9 Star2. Mi 9

Everyday essentials
Everyday essentials — specifications for Galaxy A9 Star, Mi 9.
SpecificationGalaxy A9 StarMi 9
Dimensions (HxWxD)
  • 162.4 Х 77 Х 7.6 mm
  • 157.5 Х 74.7 Х 7.6 mm
Weight
  • 191 g
  • 173 g
Technology
  • Super AMOLED
  • Super AMOLED
Screen size
  • 6.3" inch
  • 6.39" inch
Screen resolution
  • 1080 x 2220 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 4/6 GB RAM
  • 64/128 GB
  • 6/8 GB RAM
Memory card support
  • microSD
  • up to 512 GB (uses SIM 2 slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 3700 mAh
  • Non-removable Li-Ion
  • 3300 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 8 (Oreo)
  • Android 9.0 (Pie)
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Qualcomm SDM855 Snapdragon 855 (7 nm)
NFC
  • Yes
  • Yes
Headphone jack
  • Yes
  • No
Display
Display — specifications for Galaxy A9 Star, Mi 9.
SpecificationGalaxy A9 StarMi 9
Touchscreen
  • capacitive touchscreen
  • Super AMOLED capacitive touchs
Display colors
  • 16M
  • 16M
Screen area
  • 100.7 cm2
  • 100.2 cm2
Screen format
  • 18.5:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 80.6%
  • 85.2%
PPI /points per inch/
  • 392 PPI
  • 403 PPI
Screen protection Unknown
  • Corning Gorilla Glass 6
Camera and Video

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

Camera and Video — specifications for Galaxy A9 Star, Mi 9.
SpecificationGalaxy A9 StarMi 9
Rear camera, main
  • 24 MP
  • Dual
  • 48 MP
  • Triple
Camera specs
  • 24 MP
  • f/1.7 -16 MP
  • f/1.7
  • PDAF
  • 48 MP
  • f/1.8
  • 1/2''
  • 0.8µm
  • Laser/PDAF -16 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/3.0''
  • 1.0µm
  • Laser/PDAF -12 MP
  • 54mm (telephoto)
  • 1/3.6''
  • Laser/PDAF
  • 2x optical zoom
Functions
  • LED flash
  • panorama
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 24 MP
  • Single
  • 20 MP
  • Single
Specifications
  • 24 MP
  • f/2.0
  • 20 MP
  • f/2.0
  • 0.9μm
DxOMark Main Score * Unknown
  • 110
DxOMark Photo * Unknown
  • 115
DxOMark Video * Unknown
  • 99
Performance

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

Performance — specifications for Galaxy A9 Star, Mi 9.
SpecificationGalaxy A9 StarMi 9
Processor CPU
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • Octa-core (1x2.84 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)
Graphics processor GPU
  • Adreno 512
  • Adreno 640
Antutu 7 score *
  • 104325
  • 371108
GeekBench 4 Single Core * Unknown
  • 3235
GeekBench 4 Multi-Core * Unknown
  • 10405
GeekBench 4 RenderScript * Unknown
  • 7120
Antutu 8 score * Unknown
  • 445567
GeekBench 4 Battery * Unknown
  • 6086
GeekBench 5 Single Core * Unknown
  • 678
GeekBench 5 Multi-Core * Unknown
  • 2575
General specs
General specs — specifications for Galaxy A9 Star, Mi 9.
SpecificationGalaxy A9 StarMi 9
Release date
  • 2018
  • June
  • 2019
  • February
Colors
  • Black
  • White
  • Lavender Violet
  • Ocean Blue
  • Piano Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 350 EUR
  • 450 EUR
Body build
  • Front/back glass
  • aluminum frame
  • Back glass (Gorilla Glass 5)
  • aluminum frame (7000 series)
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy A9 Star, Mi 9.
SpecificationGalaxy A9 StarMi 9
SIM card
  • Hybrid 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 - China -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500) - Global LTE band 1(2100)
  • 41(2500) - China
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 CDMA 800 & TD-SCDMA -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 39(1900)
  • 40(2300)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
  • HSPA
  • 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
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 5.0
  • A2DP
  • LE
  • aptX HD
Harmful irradiation
  • SAR EU - 0.43 W/kg (head) 1.79 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy A9 Star, Mi 9.
SpecificationGalaxy A9 StarMi 9
Radio
  • FM radio
  • No
Others
  • Active noise cancellation with dedicated mic -Dolby Atmos sound (headphones only)
  • HDR10 -DCI-P3
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Galaxy A9 Star, Mi 9.
SpecificationGalaxy A9 StarMi 9
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 9V/1.67A -ANT+ - Samsung Pay - Versions: A8 Star (Global
  • SEA
  • South Korea); A9 Star (China)
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast battery charging 27W (Quick Charge 4+) -Fast wireless charging 20W