Xiaomi Mi 4i vs Xiaomi Redmi 8A

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

    Mi 4i: 58 g lighter

    Mi 4i:
    130 g
    Redmi 8A:
    188 g
  • Width

    Mi 4i: 5.8 mm narrower

    Mi 4i:
    69.6 mm
    Redmi 8A:
    75.4 mm
  • Screen diagonal

    Mi 4i: 1.2 in smaller diagonal

    Mi 4i:
    5 in
    Redmi 8A:
    6.2 in
  • Chipset

    Mi 4i:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
    Redmi 8A:
    Qualcomm SDM439 Snapdragon 439 (12 nm)
  • Depth

    Mi 4i: 1.6 mm thinner

    Mi 4i:
    7.8 mm
    Redmi 8A:
    9.4 mm
  • Height

    Mi 4i: 18.4 mm shorter

    Mi 4i:
    138.1 mm
    Redmi 8A:
    156.5 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. Mi 4i

    Height:
    138.1 mm
    Width:
    69.6 mm
    Depth:
    7.8 mm
  2. 2. Redmi 8A

    Height:
    156.5 mm +18.4 mm versus Mi 4i
    Width:
    75.4 mm +5.8 mm versus Mi 4i
    Depth:
    9.4 mm +1.6 mm versus Mi 4i

Weight

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

  1. 1. Mi 4i

    130 g

  2. 2. Redmi 8A

    188 g

    +58 g versus Mi 4i

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. Mi 4i

    Screen diagonal:
    5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    68.9 cm²
  2. 2. Redmi 8A

    Screen diagonal:
    6.2 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    95.9 cm²

Redmi 8A has approximately 39.2% more rectangular screen area than Mi 4i.

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 Mi 4i, Redmi 8A, compared at the same storage capacity.
StorageMi 4iRedmi 8A
16 GB 2 GB RAM Not recorded
32 GB Recorded for all phones 2 GB RAM 2 / 3 GB RAM Alternative RAM configurations

Practical features

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

1. Mi 4i

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

2. Redmi 8A

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 512 GB (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. Mi 4i

    3120 mAh

  2. 2. Redmi 8A

    5000 mAh

    +1880 mAh versus Mi 4i

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. Mi 4i2. Redmi 8A

Everyday essentials
Everyday essentials — specifications for Mi 4i, Redmi 8A.
SpecificationMi 4iRedmi 8A
Dimensions (HxWxD)
  • 138.1 Х 69.6 Х 7.8 mm
  • 156.5 Х 75.4 Х 9.4 mm
Weight
  • 130 g
  • 188 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5" inch
  • 6.2" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1520 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 16/32 GB
  • 2 GB RAM
  • 32GB 2GB RAM
  • 32GB 3GB RAM
Memory card support
  • No
  • microSD
  • up to 512 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 3120 mAh
  • Non-removable Li-Ion
  • 5000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 5.0.2 (Lollipop); MIUI 8.2
  • Android 9.0 (Pie)
Chipset
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Qualcomm SDM439 Snapdragon 439 (12 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Mi 4i, Redmi 8A.
SpecificationMi 4iRedmi 8A
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 95.9 cm2
Screen format
  • 16:9 (height:width)
  • 19:9 (height:width)
Screen to body ratio
  • 71.7%
  • 81.3%
PPI /points per inch/
  • 441 PPI
  • 271 PPI
Screen protection
  • Corning scratch-resistant glass
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Mi 4i, Redmi 8A.
SpecificationMi 4iRedmi 8A
Rear camera, main
  • 13 MP
  • Single
  • 12 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • f/2.0
  • 12 MP
  • f/1.8
  • 1/2.55''
  • 1.4µm
  • dual pixel PDAF
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
  • HDR
Video
  • 1080p@30fps
  • 480p@120fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 5 MP
  • f/1.8
  • 8 MP
  • f/2.0
  • 1.12µm
Performance

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

Performance — specifications for Mi 4i, Redmi 8A.
SpecificationMi 4iRedmi 8A
Processor CPU
  • Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
  • Octa-core (2x1.95 GHz Cortex-A53 & 6x1.45 GHz Cortex A53)
Graphics processor GPU
  • Adreno 405
  • Adreno 505
Antutu 7 score *
  • 40156
Unknown
GeekBench 4 Single Core *
  • 617
  • 864
GeekBench 4 Multi-Core *
  • 1374
  • 3669
GeekBench 4 RenderScript *
  • 1404
Unknown
Antutu 8 score * Unknown
  • 87337
General specs
General specs — specifications for Mi 4i, Redmi 8A.
SpecificationMi 4iRedmi 8A
Release date
  • 2015
  • April
  • 2019
  • September
Colors
  • Dark Gray
  • Black
  • White
  • Yellow
  • Blue
  • Pink
  • Midnight Black
  • Ocean Blue
  • Sunset Red
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
  • 100 EUR
Battery life
  • Talking time- Up to 35 h (3G)
Unknown
Body build
  • plastic body
  • Front glass
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Mi 4i, Redmi 8A.
SpecificationMi 4iRedmi 8A
SIM card
  • Dual SIM (Micro-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 / 1900 / 2100 TD-SCDMA -4G - LTE band 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • 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)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300) - Global LTE band 1(2100)
  • 40(2300)
  • 41(2500) - India LTE band 1(2100)
  • 34(2000)
  • 39(1900)
  • 41(2500) - China
Speed
  • HSPA
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • USB Host
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 4.1
  • A2DP
  • 4.2
  • A2DP
  • LE
Harmful irradiation
  • SAR - 1.29 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for Mi 4i, Redmi 8A.
SpecificationMi 4iRedmi 8A
Radio
  • Stereo FM radio
  • FM radio
  • built-in antenna
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Mi 4i, Redmi 8A.
SpecificationMi 4iRedmi 8A
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 40% in 60 min (Quick Charge)
  • Sensors Accelerometer
  • proximity
  • compass
  • Infrared port - Fast battery charging 18W - Splash resistant