Samsung Galaxy A9 (2018) vs T-Mobile Comet

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

    Comet: 80.9 g lighter

    Galaxy A9 (2018):
    183 g
    Comet:
    102.1 g
  • Width

    Comet: 21.1 mm narrower

    Galaxy A9 (2018):
    77 mm
    Comet:
    55.9 mm
  • Screen diagonal

    Comet: 3.5 in smaller diagonal

    Galaxy A9 (2018):
    6.3 in
    Comet:
    2.8 in
  • Chipset

    Galaxy A9 (2018):
    Qualcomm SDM660 Snapdragon 660 (14 nm)
    Comet:
    Qualcomm MSM7225 Snapdragon S1
  • Rear camera layout

    Galaxy A9 (2018):
    Quad
    Comet:
    Single
  • Depth

    Galaxy A9 (2018): 4.9 mm thinner

    Galaxy A9 (2018):
    7.8 mm
    Comet:
    12.7 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 A9 (2018)

    Height:
    162.5 mm +58.4 mm versus Comet
    Width:
    77 mm +21.1 mm versus Comet
    Depth:
    7.8 mm
  2. 2. Comet

    Height:
    104.1 mm
    Width:
    55.9 mm
    Depth:
    12.7 mm +4.9 mm versus Galaxy A9 (2018)

Weight

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

  1. 1. Galaxy A9 (2018)

    183 g

    +80.9 g versus Comet

  2. 2. Comet

    102.1 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 (2018)

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

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²

Galaxy A9 (2018) has approximately 314.9% more rectangular screen area than Comet.

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 (2018): 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 (2018)

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

2. Comet

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot) · 2 GB included

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 (2018)

    3800 mAh

    +2600 mAh versus Comet

  2. 2. Comet

    1200 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 (2018)2. Comet

Everyday essentials
Everyday essentials — specifications for Galaxy A9 (2018), Comet.
SpecificationGalaxy A9 (2018)Comet
Dimensions (HxWxD)
  • 162.5 Х 77 Х 7.8 mm
  • 104.1 Х 55.9 Х 12.7 mm
Weight
  • 183 g
  • 102.1 g
Technology
  • Super AMOLED
  • TFT
Screen size
  • 6.3" inch
  • 2.8" inch
Screen resolution
  • 1080 x 2220 px
  • 240 x 320 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64/128 GB
  • 6/8 GB RAM
Unknown
Memory card support
  • microSD
  • up to 512 GB (dedicated slot)
  • microSD
  • up to 32 GB (dedicated slot)
  • 2 GB included
Battery Capacity is not battery life. No endurance test is implied.
  • 3800 mAh
  • Non-removable Li-Ion
  • 1200 mAh
  • Removable Li-Ion
Operating system OS
  • Android 8.0 (Oreo)
  • planned upgrade to Android 9.0 (Pie)
  • Android 2.2 (Froyo)
Chipset
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Qualcomm MSM7225 Snapdragon S1
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy A9 (2018), Comet.
SpecificationGalaxy A9 (2018)Comet
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 256K
Screen area
  • 100.2 cm2
  • 24.3 cm2
Screen format
  • 18.5:9 (height:width)
  • 4:3 (height:width)
Screen to body ratio
  • 80.1%
  • 41.7%
PPI /points per inch/
  • 393 PPI
  • 143 PPI
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 (2018), Comet.
SpecificationGalaxy A9 (2018)Comet
Rear camera, main
  • 24 MP
  • Quad
  • 3.15 MP
  • Single
Camera specs
  • 24 MP
  • f/1.7
  • 27mm (wide)
  • 1/2.8''
  • 0.9µm
  • PDAF -8 MP
  • f/2.4
  • 12mm (ultrawide)
  • 1/4.0''
  • 1.12µm -10 MP f/2.4
  • 52mm
  • (telephoto)
  • 1/3.9''
  • 1.0µm
  • 2x optical zoom -5 MP
  • f/2.2
  • 24mm (wide)
  • 1/5.0''
  • 1.12µm
  • depth sensor
  • 3.15 MP
Functions
  • HDR
Unknown
Video
  • 1080p@30fps
  • CIF
Front camera, selfie
  • 24 MP
  • Single
  • 0 MP,
Specifications
  • 24 MP
  • f/2.0
  • 27mm (wide)
  • 1/2.8''
  • 0.9μm
Unknown
DxOMark Main Score *
  • 88
Unknown
DxOMark Photo *
  • 93
Unknown
DxOMark Video *
  • 77
Unknown
Performance

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

Performance — specifications for Galaxy A9 (2018), Comet.
SpecificationGalaxy A9 (2018)Comet
Processor CPU
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
  • 528 MHz ARM 11
Graphics processor GPU
  • Adreno 512
  • No
Antutu 7 score *
  • 142728
Unknown
GeekBench 5 Single Core *
  • 300
Unknown
GeekBench 5 Multi-Core *
  • 1336
Unknown
General specs
General specs — specifications for Galaxy A9 (2018), Comet.
SpecificationGalaxy A9 (2018)Comet
Release date
  • 2018
  • October
  • 2010
  • November
Colors
  • Caviar Black
  • Lemonade Blue
  • Bubblegum Pink
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 600 EUR
  • 150 EUR
Battery life Unknown
  • Stand by time- Up to 288 h Talking time- Up to 9 h
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy A9 (2018), Comet.
SpecificationGalaxy A9 (2018)Comet
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Mini-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 13(700)
  • 17(700)
  • 20(800)
  • 26(850)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 41(2500)
  • 66(1700/2100)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
  • HSPA 7.2/0.384 Mbps
GPRS
  • Yes
  • Class 10
Edge
  • Yes
  • Class 10
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • Yes
  • with A-GPS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 2.0
  • A2DP
Harmful irradiation
  • SAR - 0.27 W/kg (head) 0.84 W/kg (body) SAR EU - 0.35 W/kg (head) 1.59 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy A9 (2018), Comet.
SpecificationGalaxy A9 (2018)Comet
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic -Dolby Atmos
Unknown
Other features
Other features — specifications for Galaxy A9 (2018), Comet.
SpecificationGalaxy A9 (2018)Comet
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - ANT+ -Fast battery charging - Samsung Pay - Also known as Samsung Galaxy A9 Star Pro
  • Samsung Galaxy A9s Versions: SM-A920F/DS (Global); SM-A9200 (China)
  • Sensors Accelerometer MP3/WMA/eAAC+ player -MP4/H.264 player -Organizer -Photo viewer/editor -Voice memo/dial/commands -Predictive text input (Swype) For T-Mobile