Acer M900 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.

  • Width

    M900: 15 mm narrower

    M900:
    62 mm
    Galaxy A9 Star:
    77 mm
  • Screen diagonal

    M900: 2.5 in smaller diagonal

    M900:
    3.8 in
    Galaxy A9 Star:
    6.3 in
  • Rear camera layout

    M900:
    Single
    Galaxy A9 Star:
    Dual
  • Depth

    Galaxy A9 Star: 9.5 mm thinner

    M900:
    17.1 mm
    Galaxy A9 Star:
    7.6 mm
  • Height

    M900: 43.4 mm shorter

    M900:
    119 mm
    Galaxy A9 Star:
    162.4 mm
  • Release year

    M900:
    2009
    Galaxy A9 Star:
    2018

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. M900

    Height:
    119 mm
    Width:
    62 mm
    Depth:
    17.1 mm +9.5 mm versus Galaxy A9 Star
  2. 2. Galaxy A9 Star

    Height:
    162.4 mm +43.4 mm versus M900
    Width:
    77 mm +15 mm versus M900
    Depth:
    7.6 mm

Weight

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

  1. 1. M900

    188 g

  2. 2. Galaxy A9 Star

    191 g

    +3 g versus M900

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. M900

    Screen diagonal:
    3.8 in
    Aspect ratio (height:width):
    5:3
    Approximate rectangular screen area:
    41.1 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

Galaxy A9 Star has approximately 145.1% more rectangular screen area than M900.

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.

M900: Original memory entry

Super AMOLED

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. M900

NFC:
See details Super AMOLED
Headphone jack:
See details panorama
Memory card support:
See details microSD (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. M900

    1530 mAh

  2. 2. Galaxy A9 Star

    3700 mAh

    +2170 mAh versus M900

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. M9002. Galaxy A9 Star

Everyday essentials
Everyday essentials — specifications for M900, Galaxy A9 Star.
SpecificationM900Galaxy A9 Star
Dimensions (HxWxD)
  • 119 Х 62 Х 17.1 mm
  • 162.4 Х 77 Х 7.6 mm
Weight
  • 188 g
  • 191 g
Technology
  • TFT
  • Super AMOLED
Screen size
  • 3.8" inch
  • 6.3" inch
Screen resolution
  • 480 x 800 px
  • 1080 x 2220 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • Super AMOLED
  • 64 GB
  • 4/6 GB RAM
Memory card support
  • microSD (dedicated slot)
  • microSD
  • up to 512 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1530 mAh
  • Removable Li-Ion
  • 3700 mAh
  • Non-removable Li-Ion
Operating system OS
  • Microsoft Windows Mobile 6.1 Professional
  • Android 8 (Oreo)
Chipset Unknown
  • Qualcomm SDM660 Snapdragon 660 (14 nm)
NFC
  • Super AMOLED
  • Yes
Headphone jack
  • panorama
  • Yes
Display
Display — specifications for M900, Galaxy A9 Star.
SpecificationM900Galaxy A9 Star
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 41.1 cm2
  • 100.7 cm2
Screen format
  • 5:3 (height:width)
  • 18.5:9 (height:width)
Screen to body ratio
  • 55.7%
  • 80.6%
PPI /points per inch/
  • 246 PPI
  • 392 PPI
Camera and Video
Camera and Video — specifications for M900, Galaxy A9 Star.
SpecificationM900Galaxy A9 Star
Rear camera, main
  • 5 MP
  • Single
  • 24 MP
  • Dual
Camera specs
  • 5 MP
  • AF
  • 24 MP
  • f/1.7 -16 MP
  • f/1.7
  • PDAF
Functions
  • Dual-LED flash
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0.3 MP
  • Single
  • 24 MP
  • Single
Specifications
  • VGA videocall camera
  • 24 MP
  • f/2.0
Performance

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

Performance — specifications for M900, Galaxy A9 Star.
SpecificationM900Galaxy A9 Star
Processor CPU
  • 533 MHz Samsung S3C 6410
  • Octa-core (4x2.2 GHz Kryo 260 & 4x1.8 GHz Kryo 260)
Graphics processor GPU Unknown
  • Adreno 512
Antutu 7 score * Unknown
  • 104325
General specs
General specs — specifications for M900, Galaxy A9 Star.
SpecificationM900Galaxy A9 Star
Release date
  • 2009
  • February
  • 2018
  • June
Colors
  • Black
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 250 EUR
  • 350 EUR
Battery life
  • Stand by time- Up to 470 h Talking time- Up to 4 h
Unknown
Body build Unknown
  • Front/back glass
  • aluminum frame
Communication and Connectivity
Communication and Connectivity — specifications for M900, Galaxy A9 Star.
SpecificationM900Galaxy A9 Star
SIM card
  • Single SIM (Mini-SIM)Dual SIM (Mini-SIM/Micro-SIM
  • 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 900 / 2100-4G - LTE
  • 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 7.2/2 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • SiRF Star III chipset
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
USB
  • miniUSB
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • microUSB 2.0
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 0.43 W/kg (head) 0.92 W/kg (body)
  • SAR EU - 0.43 W/kg (head) 1.79 W/kg (body)
Music and Audio
Music and Audio — specifications for M900, Galaxy A9 Star.
SpecificationM900Galaxy A9 Star
Radio
  • FM radio
  • FM radio
Others
  • Handwriting recognition
  • Active noise cancellation with dedicated mic -Dolby Atmos sound (headphones only)
Other features
Other features — specifications for M900, Galaxy A9 Star.
SpecificationM900Galaxy A9 Star
Dop
  • Sensors Fingerprint (front-mounted) Pocket Office -Voice memo -MP3 player -Predictive text input
  • 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)