Samsung Galaxy Alpha vs Xiaomi Redmi Note 9S

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.

  • Display technology

    OLED versus LCD

    Galaxy Alpha:
    OLED
    Redmi Note 9S:
    LCD
  • Weight

    Galaxy Alpha: 94 g lighter

    Galaxy Alpha:
    115 g
    Redmi Note 9S:
    209 g
  • Width

    Galaxy Alpha: 11.2 mm narrower

    Galaxy Alpha:
    65.5 mm
    Redmi Note 9S:
    76.7 mm
  • Screen diagonal

    Galaxy Alpha: 1.97 in smaller diagonal

    Galaxy Alpha:
    4.7 in
    Redmi Note 9S:
    6.67 in
  • Chipset

    Galaxy Alpha:
    Exynos 5430 Octa (20 nm)
    Redmi Note 9S:
    Qualcomm SM7125 Snapdragon 720G (8 nm)
  • Rear camera layout

    Galaxy Alpha:
    Single
    Redmi Note 9S:
    Quad

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 Alpha

    Height:
    132.4 mm
    Width:
    65.5 mm
    Depth:
    6.7 mm
  2. 2. Redmi Note 9S

    Height:
    165.8 mm +33.4 mm versus Galaxy Alpha
    Width:
    76.7 mm +11.2 mm versus Galaxy Alpha
    Depth:
    8.8 mm +2.1 mm versus Galaxy Alpha

Weight

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

  1. 1. Galaxy Alpha

    115 g

  2. 2. Redmi Note 9S

    209 g

    +94 g versus Galaxy Alpha

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 Alpha

    Screen diagonal:
    4.7 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    60.9 cm²
  2. 2. Redmi Note 9S

    Screen diagonal:
    6.67 in
    Aspect ratio (height:width):
    20:9
    Approximate rectangular screen area:
    107.4 cm²

Redmi Note 9S has approximately 76.4% more rectangular screen area than Galaxy Alpha.

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 Galaxy Alpha, Redmi Note 9S, compared at the same storage capacity.
StorageGalaxy AlphaRedmi Note 9S
32 GB 2 GB RAM Not recorded
64 GB Not recorded 4 GB RAM
128 GB Not recorded 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. Galaxy Alpha

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

2. Redmi Note 9S

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSDXC (dedicated 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. Galaxy Alpha

    1860 mAh

  2. 2. Redmi Note 9S

    5020 mAh

    +3160 mAh versus Galaxy Alpha

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 Alpha2. Redmi Note 9S

Everyday essentials
Everyday essentials — specifications for Galaxy Alpha, Redmi Note 9S.
SpecificationGalaxy AlphaRedmi Note 9S
Dimensions (HxWxD)
  • 132.4 Х 65.5 Х 6.7 mm
  • 165.8 Х 76.7 Х 8.8 mm
Weight
  • 115 g
  • 209 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 4.7" inch
  • 6.67" inch
Screen resolution
  • 720 x 1280 px
  • 1080 x 2400 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 2 GB RAM
  • 64GB 4GB RAM
  • 128GB 6GB RAM
Memory card support
  • No
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1860 mAh
  • Removable Li-Ion
  • 5020 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.4.4 (KitKat)
  • upgradable to 5.0.2 (Lollipop)
  • Android 10.0; MIUI 11
Chipset
  • Exynos 5430 Octa (20 nm)
  • Qualcomm SM7125 Snapdragon 720G (8 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Galaxy Alpha, Redmi Note 9S.
SpecificationGalaxy AlphaRedmi Note 9S
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 60.9 cm2
  • 107.4 cm2
Screen format
  • 16:9 (height:width)
  • 20:9 (height:width)
Screen to body ratio
  • 70.2%
  • 84.5%
PPI /points per inch/
  • 312 PPI
  • 395 PPI
Screen protection
  • Corning Gorilla Glass 4
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Galaxy Alpha, Redmi Note 9S.
SpecificationGalaxy AlphaRedmi Note 9S
Rear camera, main
  • 12 MP
  • Single
  • 48 MP
  • Quad
Camera specs
  • 12 MP
  • f/2.2
  • 31mm (standard)
  • AF
  • 48 MP
  • f/1.8
  • 26mm (wide)
  • 1/2.0''
  • 0.8µm
  • PDAF -8 MP
  • f/2.2
  • 13mm (ultrawide)
  • 1/4.0''
  • 1.12µm -5 MP
  • f/2.4
  • (macro)
  • 1.12µm -2 MP
  • (depth)
Functions
  • LED flash
  • panorama
  • HDR
  • HDR
  • panorama
Video
  • 2160p@30fps
  • 1080p@60fps
  • 720p@120fps
  • 1080p@30fps
Front camera, selfie
  • 2.1 MP
  • Single
  • 16 MP
  • Single
Specifications
  • 2.1 MP
  • 16 MP
  • f/2.5
  • (wide)
  • 1.0µm
Performance

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

Performance — specifications for Galaxy Alpha, Redmi Note 9S.
SpecificationGalaxy AlphaRedmi Note 9S
Processor CPU
  • Octa-core (4x1.8 GHz Cortex-A15 & 4x1.3 GHz Cortex-A7)
  • Octa-core (2x2.3 GHz Kryo 465 Gold & 6x1.8 GHz Kryo 465 Silver)
Graphics processor GPU
  • Mali-T628 MP6
  • Adreno 618
Antutu 7 score *
  • 50125
Unknown
GeekBench 4 Single Core *
  • 782
Unknown
GeekBench 4 Multi-Core *
  • 2457
Unknown
GeekBench 4 RenderScript *
  • 1804
Unknown
General specs
General specs — specifications for Galaxy Alpha, Redmi Note 9S.
SpecificationGalaxy AlphaRedmi Note 9S
Release date
  • 2014
  • August
  • 2020
  • March 23
Colors
  • Charcoal Black
  • Sleek Silver
  • Dazzling White
  • Frosted Gold
  • Scuba Blue
  • Aurora Blue
  • Glacier white
  • Interstellar Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 390 EUR
  • $ 199
Battery life
  • Stand by time- Up to 350 h (3G) Talking time- Up to 11 h (3G) Music play - Up to 37 h
Unknown
Body build
  • aluminum frame
  • plastic back
  • Glass front (Gorilla Glass 5)
  • glass back (Gorilla Glass 5)
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Galaxy Alpha, Redmi Note 9S.
SpecificationGalaxy AlphaRedmi Note 9S
SIM card
  • Nano-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800) - G850F LTE band 1(2100)
  • 4(1700/2100)
  • 17(700) - SM-G850M
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 -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)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A Cat6 300/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • 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
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.0
  • A2DP
  • EDR
  • LE
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 1.18 W/kg (head) 0.75 W/kg (body) SAR EU - 0.37 W/kg (head) 0.51 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Galaxy Alpha, Redmi Note 9S.
SpecificationGalaxy AlphaRedmi Note 9S
Radio
  • No
  • FM radio
  • recording
Others
  • Active noise cancellation with dedicated mic
  • 450 nits typ. brightness (advertised)
Other features
Other features — specifications for Galaxy Alpha, Redmi Note 9S.
SpecificationGalaxy AlphaRedmi Note 9S
Dop
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • heart rate - ANT+ - Versions: G850F (Europe); G850T (T-Mobile)
  • G850M (Vodafone); G850FQ; G850Y Also known as Samsung Galaxy Alfa
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Fast charging 18W - Splash-proof