A1 Alpha vs Xiaomi Redmi 8A Dual

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

    Alpha: 38 g lighter

    Alpha:
    150 g
    Redmi 8A Dual:
    188 g
  • Chipset

    Alpha:
    Unisoc SC9863A (28nm)
    Redmi 8A Dual:
    Qualcomm SDM439 Snapdragon 439 (12 nm)
  • Depth

    Alpha: 1.3 mm thinner

    Alpha:
    8.1 mm
    Redmi 8A Dual:
    9.4 mm
  • Height

    Alpha: 4.8 mm shorter

    Alpha:
    151.7 mm
    Redmi 8A Dual:
    156.5 mm
  • Release year

    Alpha:
    2019
    Redmi 8A Dual:
    2020

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
    Width:
    75.8 mm
    Depth:
    8.1 mm
  2. 2. Redmi 8A Dual

    Height:
    156.5 mm +4.8 mm versus Alpha
    Width:
    75.4 mm
    Depth:
    9.4 mm +1.3 mm versus Alpha

Weight

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

  1. 1. Alpha

    150 g

  2. 2. Redmi 8A Dual

    188 g

    +38 g versus 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. Alpha

    Screen diagonal:
    6.26 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    97.8 cm²
  2. 2. Redmi 8A Dual

    Screen diagonal:
    6.22 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    96.6 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.

Recorded RAM for Alpha, Redmi 8A Dual, compared at the same storage capacity.
StorageAlphaRedmi 8A Dual
32 GB Recorded for all phones 2 GB RAM 2 / 3 GB RAM Alternative RAM configurations
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 8A Dual

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. Alpha

    3200 mAh

  2. 2. Redmi 8A Dual

    5000 mAh

    +1800 mAh versus 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. Alpha2. Redmi 8A Dual

Everyday essentials
Everyday essentials — specifications for Alpha, Redmi 8A Dual.
SpecificationAlphaRedmi 8A Dual
Dimensions (HxWxD)
  • 151.7 Х 75.8 Х 8.1 mm
  • 156.5 Х 75.4 Х 9.4 mm
Weight
  • 150 g
  • 188 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 6.26" inch
  • 6.22" inch
Screen resolution
  • 720 x 1520 px
  • 720 x 1520 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
  • 32GB 2GB RAM
  • 32GB 3GB RAM
Memory card support
  • microSD
  • up to 256 GB (uses shared SIM slot)
  • microSDXC (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3200 mAh
  • Non-removable Li-Ion
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie)
  • Android 9.0 (Pie); MIUI 11
Chipset
  • Unisoc SC9863A (28nm)
  • Qualcomm SDM439 Snapdragon 439 (12 nm)
NFC
  • Yes (64/3GB model only)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Alpha, Redmi 8A Dual.
SpecificationAlphaRedmi 8A Dual
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 97.8 cm2
  • 96.6 cm2
Screen format
  • 19:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 82.1%
  • 81.8%
PPI /points per inch/
  • 269 PPI
  • 270 PPI
Screen protection Unknown
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Alpha, Redmi 8A Dual.
SpecificationAlphaRedmi 8A Dual
Rear camera, main
  • 13 MP
  • Dual
  • 13 MP
  • Dual
Camera specs
  • 13 MP
  • f/2.0
  • AF -2 MP
  • f/2.4
  • depth sensor
  • 13 MP
  • f/2.2
  • (wide)
  • 1/3.1''
  • 1.12µm
  • PDAF -2 MP
  • f/2.4
  • (depth)
Functions
  • LED flash
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 8 MP
  • f/2.0
  • 1/4''
  • 1.12µm
Performance

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

Performance — specifications for Alpha, Redmi 8A Dual.
SpecificationAlphaRedmi 8A Dual
Processor CPU
  • Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
  • Octa-core (4x1.95 GHz Cortex-A53 & 4x1.45 GHz Cortex A53)
Graphics processor GPU
  • IMG8322
  • Adreno 505
GeekBench 4 Single Core * Unknown
  • 864
GeekBench 4 Multi-Core * Unknown
  • 3669
Antutu 8 score * Unknown
  • 95326
General specs
General specs — specifications for Alpha, Redmi 8A Dual.
SpecificationAlphaRedmi 8A Dual
Release date
  • 2019
  • August
  • 2020
  • February 11
Colors
  • Black
  • Green
  • Sky White
  • Sea Blue
  • Midnight Grey
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 80 EUR
Body build Unknown
  • Glass front (Gorilla Glass 5)
  • plastic back
  • plastic frame
Communication and Connectivity
Communication and Connectivity — specifications for Alpha, Redmi 8A Dual.
SpecificationAlphaRedmi 8A Dual
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • 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 / 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)
  • 5(850)
  • 8(900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE-A
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
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Alpha, Redmi 8A Dual.
SpecificationAlphaRedmi 8A Dual
Radio
  • FM radio
  • FM radio
  • built-in antenna
Others
  • Active noise cancellation with dedicated mic
  • 400 nits typ. brightness
Other features
Other features — specifications for Alpha, Redmi 8A Dual.
SpecificationAlphaRedmi 8A Dual
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • proximity
  • compass - Fast battery charging 18W -Power bank/Reverse charging - Splash resistant