A1 Alpha vs Xiaomi Mi 4i

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: 20 g lighter

    Alpha:
    150 g
    Mi 4i:
    130 g
  • Width

    Mi 4i: 6.2 mm narrower

    Alpha:
    75.8 mm
    Mi 4i:
    69.6 mm
  • Screen diagonal

    Mi 4i: 1.26 in smaller diagonal

    Alpha:
    6.26 in
    Mi 4i:
    5 in
  • Chipset

    Alpha:
    Unisoc SC9863A (28nm)
    Mi 4i:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Rear camera layout

    Alpha:
    Dual
    Mi 4i:
    Single
  • Height

    Mi 4i: 13.6 mm shorter

    Alpha:
    151.7 mm
    Mi 4i:
    138.1 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 +13.6 mm versus Mi 4i
    Width:
    75.8 mm +6.2 mm versus Mi 4i
    Depth:
    8.1 mm
  2. 2. Mi 4i

    Height:
    138.1 mm
    Width:
    69.6 mm
    Depth:
    7.8 mm

Weight

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

  1. 1. Alpha

    150 g

    +20 g versus Mi 4i

  2. 2. Mi 4i

    130 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. Mi 4i

    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 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 Alpha, Mi 4i, compared at the same storage capacity.
StorageAlphaMi 4i
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. Mi 4i

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

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 Mi 4i

  2. 2. Mi 4i

    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. Mi 4i

Everyday essentials
Everyday essentials — specifications for Alpha, Mi 4i.
SpecificationAlphaMi 4i
Dimensions (HxWxD)
  • 151.7 Х 75.8 Х 8.1 mm
  • 138.1 Х 69.6 Х 7.8 mm
Weight
  • 150 g
  • 130 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 6.26" inch
  • 5" inch
Screen resolution
  • 720 x 1520 px
  • 1080 x 1920 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)
  • No
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 5.0.2 (Lollipop); MIUI 8.2
Chipset
  • Unisoc SC9863A (28nm)
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
NFC
  • Yes (64/3GB model only)
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Alpha, Mi 4i.
SpecificationAlphaMi 4i
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 97.8 cm2
  • 68.9 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 82.1%
  • 71.7%
PPI /points per inch/
  • 269 PPI
  • 441 PPI
Screen protection Unknown
  • Corning scratch-resistant glass
Camera and Video
Camera and Video — specifications for Alpha, Mi 4i.
SpecificationAlphaMi 4i
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/2.0
Functions
  • LED flash
  • HDR
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
  • 480p@120fps
Front camera, selfie
  • 8 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 8 MP
  • f/2.0
  • 5 MP
  • f/1.8
Performance

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

Performance — specifications for Alpha, Mi 4i.
SpecificationAlphaMi 4i
Processor CPU
  • Octa-core (4x1.6 GHz Cortex-A55 & 4x1.2 GHz Cortex-A55)
  • Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU
  • IMG8322
  • Adreno 405
Antutu 7 score * Unknown
  • 40156
GeekBench 4 Single Core * Unknown
  • 617
GeekBench 4 Multi-Core * Unknown
  • 1374
GeekBench 4 RenderScript * Unknown
  • 1404
General specs
General specs — specifications for Alpha, Mi 4i.
SpecificationAlphaMi 4i
Release date
  • 2019
  • August
  • 2015
  • April
Colors
  • Black
  • Green
  • Dark Gray
  • Black
  • White
  • Yellow
  • Blue
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 150 EUR
  • 260 EUR
Battery life Unknown
  • Talking time- Up to 35 h (3G)
Body build Unknown
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for Alpha, Mi 4i.
SpecificationAlphaMi 4i
SIM card
  • Hybrid Dual SIM (Nano-SIM
  • dual stand-by)
  • Dual 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 / 1900 / 2100 TD-SCDMA -4G - LTE band 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi 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
  • USB Host
Bluetooth
  • 4.2
  • A2DP
  • LE
  • 4.1
  • A2DP
Harmful irradiation Unknown
  • SAR - 1.29 W/kg (head)
Music and Audio
Music and Audio — specifications for Alpha, Mi 4i.
SpecificationAlphaMi 4i
Radio
  • FM radio
  • Stereo FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Alpha, Mi 4i.
SpecificationAlphaMi 4i
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 40% in 60 min (Quick Charge)