Infinix S3X vs Samsung Galaxy A9 Star

Compare recorded specifications, size and practical differences.

+ Add a third phone

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

    S3X:
    LCD
    Galaxy A9 Star:
    OLED
  • Width

    S3X: 1.7 mm narrower

    S3X:
    75.3 mm
    Galaxy A9 Star:
    77 mm
  • Chipset

    S3X:
    Qualcomm MSM8937 Snapdragon 430 (28 nm)
    Galaxy A9 Star:
    Qualcomm SDM660 Snapdragon 660 (14 nm)
  • Height

    S3X: 5.7 mm shorter

    S3X:
    156.7 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. S3X

    Height:
    156.7 mm
    Width:
    75.3 mm
    Depth:
    8 mm
    Weight:
    Unknown
  2. 2. Galaxy A9 Star

    Height:
    162.4 mm +5.7 mm versus S3X
    Width:
    77 mm +1.7 mm versus S3X
    Depth:
    7.6 mm
    Weight:
    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.

At least two phones need compatible screen dimensions for a drawing.

  1. 1. S3X

    S3X: Screen geometry unavailable or conflicting.

  2. 2. Galaxy A9 Star

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

S3X: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM

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. S3X

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (dedicated slot)

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. S3X

    4000 mAh

    +300 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. S3X2. Galaxy A9 Star

Everyday essentials
Everyday essentials — specifications for S3X, Galaxy A9 Star.
SpecificationS3XGalaxy A9 Star
Dimensions (HxWxD)
  • 156.7 Х 75.3 Х 8 mm
  • 162.4 Х 77 Х 7.6 mm
Weight
  • 0 g
  • 191 g
Technology
  • IPS LCD
  • Super AMOLED
Screen size
  • 6.2" inch
  • 6.3" inch
Screen resolution
  • 720 x 1500 px
  • 1080 x 2220 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM
  • 64 GB
  • 4/6 GB RAM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • microSD
  • up to 512 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Po
  • 3700 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • Android 8 (Oreo)
Chipset
  • Qualcomm MSM8937 Snapdragon 430 (28 nm)
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for S3X, Galaxy A9 Star.
SpecificationS3XGalaxy A9 Star
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 96.7 cm2
  • 100.7 cm2
Screen format Unknown
  • 18.5:9 (height:width)
Screen to body ratio
  • 82.0%
  • 80.6%
PPI /points per inch/
  • 0 PPI
  • 392 PPI
Camera and Video
Camera and Video — specifications for S3X, Galaxy A9 Star.
SpecificationS3XGalaxy A9 Star
Rear camera, main
  • 13 MP
  • Dual
  • 24 MP
  • Dual
Camera specs
  • 13 MP
  • PDAF -2 MP
  • depth sensor
  • 24 MP
  • f/1.7 -16 MP
  • f/1.7
  • PDAF
Functions
  • Dual-LED flash
  • panorama
  • HDR
  • LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 16 MP
  • Single
  • 24 MP
  • Single
Specifications
  • 16 MP
  • 1.4µm
  • 24 MP
  • f/2.0
Performance

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

Performance — specifications for S3X, Galaxy A9 Star.
SpecificationS3XGalaxy A9 Star
Processor CPU
  • Octa-core 1.4 GHz Cortex-A53
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU
  • Adreno 505
  • Adreno 512
Antutu 7 score *
  • 43722
  • 104325
General specs
General specs — specifications for S3X, Galaxy A9 Star.
SpecificationS3XGalaxy A9 Star
Release date
  • 2018
  • 2018
  • June
Colors
  • Ice Blue
  • Sandstone Black
  • Tradewinds Grey
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 350 EUR
Body build Unknown
  • Front/back glass
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for S3X, Galaxy A9 Star.
SpecificationS3XGalaxy 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 2 -3G - HSDPA 850 / 900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 8(900)
  • 40(2300)
  • 41(2500)
  • 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 Cat4 150/50 Mbps
  • 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 b/g/n
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
USB
  • microUSB 2.0
  • USB On-The-Go
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 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 S3X, Galaxy A9 Star.
SpecificationS3XGalaxy A9 Star
Radio
  • FM radio
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic -Dolby Atmos sound (headphones only)
Other features
Other features — specifications for S3X, Galaxy A9 Star.
SpecificationS3XGalaxy A9 Star
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Charging 5V/2A 10W
  • 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)