Asus ROG Phone 3 vs Samsung Galaxy A9 Star

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

    Galaxy A9 Star: 49 g lighter

    ROG Phone 3:
    240 g
    Galaxy A9 Star:
    191 g
  • Width

    Galaxy A9 Star: 1 mm narrower

    ROG Phone 3:
    78 mm
    Galaxy A9 Star:
    77 mm
  • Screen diagonal

    Galaxy A9 Star: 0.29 in smaller diagonal

    ROG Phone 3:
    6.59 in
    Galaxy A9 Star:
    6.3 in
  • Rear camera layout

    ROG Phone 3:
    Triple
    Galaxy A9 Star:
    Dual
  • Depth

    Galaxy A9 Star: 2.3 mm thinner

    ROG Phone 3:
    9.9 mm
    Galaxy A9 Star:
    7.6 mm
  • Height

    Galaxy A9 Star: 8.6 mm shorter

    ROG Phone 3:
    171 mm
    Galaxy A9 Star:
    162.4 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. ROG Phone 3

    Height:
    171 mm +8.6 mm versus Galaxy A9 Star
    Width:
    78 mm +1 mm versus Galaxy A9 Star
    Depth:
    9.9 mm +2.3 mm versus Galaxy A9 Star
  2. 2. Galaxy A9 Star

    Height:
    162.4 mm
    Width:
    77 mm
    Depth:
    7.6 mm

Weight

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

  1. 1. ROG Phone 3

    240 g

    +49 g versus Galaxy A9 Star

  2. 2. Galaxy A9 Star

    191 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. ROG Phone 3

    Screen diagonal:
    6.59 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    106.6 cm²
  2. 2. Galaxy A9 Star

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

ROG Phone 3 has approximately 5.8% more rectangular screen area than Galaxy A9 Star.

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 ROG Phone 3, Galaxy A9 Star, compared at the same storage capacity.
StorageROG Phone 3Galaxy A9 Star
128 GB 12 GB RAM Unknown
256 GB 12 GB RAM Unknown
512 GB 12 / 16 GB RAM Alternative RAM configurations Unknown
Galaxy A9 Star: Original memory entry

64 GB · 4/6 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. ROG Phone 3

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

2. Galaxy A9 Star

NFC:
Yes
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 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. ROG Phone 3

    6000 mAh

    +2300 mAh versus Galaxy A9 Star

  2. 2. Galaxy A9 Star

    3700 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. ROG Phone 32. Galaxy A9 Star

Everyday essentials
Everyday essentials — specifications for ROG Phone 3, Galaxy A9 Star.
SpecificationROG Phone 3Galaxy A9 Star
Dimensions (HxWxD)
  • 171 Х 78 Х 9.9 mm
  • 162.4 Х 77 Х 7.6 mm
Weight
  • 240 g
  • 191 g
Technology
  • AMOLED
  • Super AMOLED
Screen size
  • 6.59" inc
  • 6.3" inch
Screen resolution
  • 1080 x 2340 px
  • 1080 x 2220 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128GB 12GB RAM
  • 256GB 12GB RAM
  • 512GB 12GB RAM
  • 512GB 16GB RAM
  • 64 GB
  • 4/6 GB RAM
Memory card support
  • No
  • microSD
  • up to 512 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 6000 mAh
  • Non-removable Li-Po
  • 3700 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 10
  • ROG UI
  • Android 8 (Oreo)
Chipset
  • - Qualcomm SM8250 Snapdragon 865+ (7 nm+)
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
NFC
  • Yes
  • Yes
Headphone jack
  • No
  • Yes
Display
Display — specifications for ROG Phone 3, Galaxy A9 Star.
SpecificationROG Phone 3Galaxy A9 Star
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 1B
  • 16M
Screen area
  • 106.6 cm2
  • 100.7 cm2
Screen format
  • 19.5:9 (height:width)
  • 18.5:9 (height:width)
Screen to body ratio
  • 79.9%
  • 80.6%
PPI /points per inch/ Unknown
  • 392 PPI
Screen protection
  • Corning Gorilla Glass 6
Unknown
Camera and Video
Camera and Video — specifications for ROG Phone 3, Galaxy A9 Star.
SpecificationROG Phone 3Galaxy A9 Star
Rear camera, main
  • 64 MP
  • Triple
  • 24 MP
  • Dual
Camera specs
  • -64 MP
  • f/1.8
  • (wide)
  • 1/1.72''
  • 0.8µm
  • PDAF -13 MP
  • f/2.4
  • 125˚
  • 11mm (ultrawide) -5 MP
  • f/2.0
  • (macro)
  • 24 MP
  • f/1.7 -16 MP
  • f/1.7
  • PDAF
Functions
  • panorama
  • HDR
  • LED flash
  • panorama
  • HDR
Video
  • 8K@30fps
  • 4K@30/60/120fps
  • 1080p@30/60/240fps
  • 720p@480fps; gyro-EIS
  • 1080p@30fps
Front camera, selfie
  • 24 MP
  • Single
  • 24 MP
  • Single
Specifications
  • 24 MP
  • f/2.0
  • 27mm (wide)
  • 0.9μm
  • 24 MP
  • f/2.0
Performance

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

Performance — specifications for ROG Phone 3, Galaxy A9 Star.
SpecificationROG Phone 3Galaxy A9 Star
Processor CPU
  • - Octa-core (1x3.1 GHz Kryo 585 & 3x2.42 GHz Kryo 585 & 4x1.8 GHz Kryo 585)
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • - Adreno 650
  • Adreno 512
Antutu 7 score * Unknown
  • 104325
Antutu 8 score *
  • 632274
Unknown
General specs
General specs — specifications for ROG Phone 3, Galaxy A9 Star.
SpecificationROG Phone 3Galaxy A9 Star
Release date
  • 2020
  • July 22
  • 2018
  • June
Colors
  • Black
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 1000 EUR
  • 350 EUR
Body build
  • Glass front (Gorilla Glass 6)
  • glass back (Gorilla Glass)
  • aluminum frame
  • Front/back glass
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for ROG Phone 3, Galaxy A9 Star.
SpecificationROG Phone 3Galaxy A9 Star
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 2CDMA 800 & TD-SCDMA -3G - HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 - A versionHSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 - B version -4G - 1
  • 2
  • 3
  • 4
  • 5
  • 7
  • 8
  • 12
  • 13
  • 17
  • 18
  • 19
  • 20
  • 25
  • 26
  • 28
  • 29
  • 30
  • 32
  • 34
  • 38
  • 39
  • 40
  • 41
  • 42
  • 48
  • 66
  • 71 - A version -5G - 1
  • 71
  • 77
  • 78
  • 79 SA/NSA - A version 41
  • 79 SA/NSA - B version
  • 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
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (6CA) Cat20 2000/150 Mbps
  • 5G 4.4 Gbps DL
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac/6
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with dual-band A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • QZSS
  • GNSS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
USB
  • Two (side 3.1
  • bottom 2.0) Type-C 1.0 reversible connector; accessory connector
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 5.1
  • A2DP
  • LE
  • aptX HD
  • aptX Adaptive
  • 5.0
  • A2DP
  • LE
Harmful irradiation Unknown
  • SAR EU - 0.43 W/kg (head) 1.79 W/kg (body)
Music and Audio
Music and Audio — specifications for ROG Phone 3, Galaxy A9 Star.
SpecificationROG Phone 3Galaxy A9 Star
Radio Unknown
  • FM radio
Others
  • - HDR10+ -144Hz refresh rate -650 nits max. brightness
  • - 24-bit/192kHz audio
  • Active noise cancellation with dedicated mic -Dolby Atmos sound (headphones only)
Other features
Other features — specifications for ROG Phone 3, Galaxy A9 Star.
SpecificationROG Phone 3Galaxy A9 Star
Dop
  • - Sensors - Fingerprint (under display
  • optical)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast charging 30W -Quick Charge 4.0
  • 3.0 -Reverse charging 10W - RGB light panel -Pressure sensitive zones
  • 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)