Sony Ericsson A8i vs Xiaomi Redmi 4a

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

    A8i: 11.4 mm narrower

    A8i:
    59 mm
    Redmi 4a:
    70.4 mm
  • Screen diagonal

    A8i: 1.5 in smaller diagonal

    A8i:
    3.5 in
    Redmi 4a:
    5 in
  • Depth

    Redmi 4a: 5.5 mm thinner

    A8i:
    14 mm
    Redmi 4a:
    8.5 mm
  • Height

    A8i: 22.9 mm shorter

    A8i:
    117 mm
    Redmi 4a:
    139.9 mm
  • Release year

    A8i:
    2010
    Redmi 4a:
    2016

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. A8i

    Height:
    117 mm
    Width:
    59 mm
    Depth:
    14 mm +5.5 mm versus Redmi 4a
  2. 2. Redmi 4a

    Height:
    139.9 mm +22.9 mm versus A8i
    Width:
    70.4 mm +11.4 mm versus A8i
    Depth:
    8.5 mm

Weight

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

  1. 1. A8i

    136 g

    +4.5 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. A8i

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    33.8 cm²
  2. 2. Redmi 4a

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

Redmi 4a has approximately 104.1% more rectangular screen area than A8i.

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 A8i, Redmi 4a, compared at the same storage capacity.
StorageA8iRedmi 4a
16 GB Unknown 2 GB RAM
32 GB Unknown 2 GB RAM
A8i: Original memory entry

200 MB

Practical features

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

1. A8i

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated 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.

At least two unambiguous positive capacity values are needed for a chart. Original entries remain in the specifications.

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. A8i2. Redmi 4a

Everyday essentials
Everyday essentials — specifications for A8i, Redmi 4a.
SpecificationA8iRedmi 4a
Dimensions (HxWxD)
  • 117 Х 59 Х 14 mm
  • 139.9 Х 70.4 Х 8.5 mm
Weight
  • 136 g
  • 131.5 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 3.5" inch
  • 5" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 200 MB
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 0 mAh,
  • 3120 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android-based OPhone 2.0
  • Android 6.0.1 (Marshmallow); MIUI 10
Chipset Unknown
  • Qualcomm MSM8917 Snapdragon 425 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A8i, Redmi 4a.
SpecificationA8iRedmi 4a
Touchscreen
  • touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 33.8 cm2
  • 68.0 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 48.9%
  • 69.0%
PPI /points per inch/
  • 280 PPI
  • 296 PPI
Screen protection
  • Scratch-resistant glass
Unknown
Camera and Video
Camera and Video — specifications for A8i, Redmi 4a.
SpecificationA8iRedmi 4a
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 5 MP
  • AF
  • 13 MP
  • AF
  • f/2.2
Functions
  • LED flash
  • LED flash
  • HDR
  • panorama
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 5 MP
  • Single
Specifications Unknown
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for A8i, Redmi 4a.
SpecificationA8iRedmi 4a
Processor CPU Unknown
  • Quad-core 1.4 GHz Cortex-A53
Graphics processor GPU Unknown
  • 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 A8i, Redmi 4a.
SpecificationA8iRedmi 4a
Release date
  • 2010
  • August
  • 2016
  • November
Colors
  • White
  • Black
  • Gold
  • Rose Gold
  • Dark Gray
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 130 EUR
  • 110 EUR
Battery life
  • Stand by time- Up to 260 h (2G) / Up to 260 h (3G) Talking time- Up to 5 h (2G) / Up to 7 h 30 min (3G)
Unknown
Body build Unknown
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for A8i, Redmi 4a.
SpecificationA8iRedmi 4a
SIM card
  • Mini-SIM
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • 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
  • TD-SCDMA
  • HSPA
  • LTE
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • 4.1
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for A8i, Redmi 4a.
SpecificationA8iRedmi 4a
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others Unknown
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for A8i, Redmi 4a.
SpecificationA8iRedmi 4a
Dop
  • Sensors Accelerometer
  • proximity
  • compass - CMMB mobile TV -MP4/H.264/WMV player -MP3/eAAC+/WMA/WAV player -TrackID music recognition -Predictive text input - For China
  • Sensors Accelerometer
  • gyro
  • proximity
  • Infrared port