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A1 Alpha vs Xiaomi Redmi 4a

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.

  • Weight

    Redmi 4a: 18.5 g lighter

    Alpha:
    150 g
    Redmi 4a:
    131.5 g
  • Width

    Redmi 4a: 5.4 mm narrower

    Alpha:
    75.8 mm
    Redmi 4a:
    70.4 mm
  • Screen diagonal

    Redmi 4a: 1.26 in smaller diagonal

    Alpha:
    6.26 in
    Redmi 4a:
    5 in
  • Chipset

    Alpha:
    Unisoc SC9863A (28nm)
    Redmi 4a:
    Qualcomm MSM8917 Snapdragon 425 (28 nm)
  • Rear camera layout

    Alpha:
    Dual
    Redmi 4a:
    Single
  • Height

    Redmi 4a: 11.8 mm shorter

    Alpha:
    151.7 mm
    Redmi 4a:
    139.9 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. Alpha

    Height:
    151.7 mm +11.8 mm versus Redmi 4a
    Width:
    75.8 mm +5.4 mm versus Redmi 4a
    Depth:
    8.1 mm
  2. 2. Redmi 4a

    Height:
    139.9 mm
    Width:
    70.4 mm
    Depth:
    8.5 mm

Weight

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

  1. 1. Alpha

    150 g

    +18.5 g versus Redmi 4a

  2. 2. Redmi 4a

    131.5 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. Alpha

    Screen diagonal:
    6.26 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    97.8 cm²
  2. 2. Redmi 4a

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²

Alpha has approximately 41.9% more rectangular screen area than Redmi 4a.

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 Alpha, Redmi 4a, compared at the same storage capacity.
StorageAlphaRedmi 4a
16 GB Not recorded 2 GB RAM
32 GB Recorded for all phones 2 GB RAM 2 GB RAM
64 GB 3 GB RAM Not recorded

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. Alpha

NFC:
See details Yes (64/3GB model only)
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (uses shared SIM slot)

2. Redmi 4a

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 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. Alpha

    3200 mAh

    +80 mAh versus Redmi 4a

  2. 2. Redmi 4a

    3120 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. Alpha2. Redmi 4a

Everyday essentials
Everyday essentials — specifications for Alpha, Redmi 4a.
SpecificationAlphaRedmi 4a
Dimensions (HxWxD)
  • 151.7 Х 75.8 Х 8.1 mm
  • 139.9 Х 70.4 Х 8.5 mm
Weight
  • 150 g
  • 131.5 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 6.26" inch
  • 5" inch
Screen resolution
  • 720 x 1520 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32GB 2GB RAM
  • 64GB 3GB RAM
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses shared SIM slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3200 mAh
  • Non-removable Li-Ion
  • 3120 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 9.0 (Pie)
  • Android 6.0.1 (Marshmallow); MIUI 10
Chipset
  • Unisoc SC9863A (28nm)
  • Qualcomm MSM8917 Snapdragon 425 (28 nm)
NFC
  • Yes (64/3GB model only)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Alpha, Redmi 4a.
SpecificationAlphaRedmi 4a
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 97.8 cm2
  • 68.0 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 82.1%
  • 69.0%
PPI /points per inch/
  • 269 PPI
  • 296 PPI
Camera and Video
Camera and Video — specifications for Alpha, Redmi 4a.
SpecificationAlphaRedmi 4a
Rear camera, main
  • 13 MP
  • Dual
  • 13 MP
  • Single
Camera specs
  • 13 MP
  • f/2.0
  • AF -2 MP
  • f/2.4
  • depth sensor
  • 13 MP
  • AF
  • f/2.2
Functions
  • LED flash
  • HDR
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for Alpha, Redmi 4a.
SpecificationAlphaRedmi 4a
Processor CPU
  • Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • IMG8322
  • Adreno 308
Antutu 7 score * Unknown
  • 43152
GeekBench 4 Single Core * Unknown
  • 664
GeekBench 4 Multi-Core * Unknown
  • 1740
GeekBench 4 RenderScript * Unknown
  • 1350
GeekBench 5 Single Core * Unknown
  • 123
GeekBench 5 Multi-Core * Unknown
  • 396
General specs
General specs — specifications for Alpha, Redmi 4a.
SpecificationAlphaRedmi 4a
Release date
  • 2019
  • August
  • 2016
  • November
Colors
  • Black
  • Green
  • Gold
  • Rose Gold
  • Dark Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 110 EUR
Body build Unknown
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Alpha, Redmi 4a.
SpecificationAlphaRedmi 4a
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
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)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 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)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 20(800)
  • 38(2600)
  • 40(2300)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Alpha, Redmi 4a.
SpecificationAlphaRedmi 4a
Radio
  • FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Alpha, Redmi 4a.
SpecificationAlphaRedmi 4a
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • gyro
  • proximity
  • Infrared port