Xiaomi Mi 4i vs Xiaomi Mi 6

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: 38 g lighter

    Mi 4i:
    130 g
    Mi 6:
    168 g
  • Chipset

    Mi 4i:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
    Mi 6:
    Qualcomm MSM8998 Snapdragon 835 (10 nm)
  • Rear camera layout

    Mi 4i:
    Single
    Mi 6:
    Dual
  • Height

    Mi 4i: 7.1 mm shorter

    Mi 4i:
    138.1 mm
    Mi 6:
    145.2 mm
  • Release year

    Mi 4i:
    2015
    Mi 6:
    2017

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. Mi 6

    Height:
    145.2 mm +7.1 mm versus Mi 4i
    Width:
    70.5 mm
    Depth:
    7.5 mm

Weight

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

  1. 1. Mi 4i

    130 g

  2. 2. Mi 6

    168 g

    +38 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. Mi 6

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

Mi 6 has approximately 6.1% 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, Mi 6, compared at the same storage capacity.
StorageMi 4iMi 6
16 GB 2 GB RAM Unknown
32 GB 2 GB RAM Unknown
Mi 6: Original memory entry

64/128 GB · 6 GB RAM 64 GB · 512GB 4GB

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. Mi 6

NFC:
Yes
Headphone jack:
No
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. Mi 4i

    3120 mAh

  2. 2. Mi 6

    3350 mAh

    +230 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. Mi 6

Everyday essentials
Everyday essentials — specifications for Mi 4i, Mi 6.
SpecificationMi 4iMi 6
Dimensions (HxWxD)
  • 138.1 Х 69.6 Х 7.8 mm
  • 145.2 Х 70.5 Х 7.5 mm
Weight
  • 130 g
  • 168 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5" inch
  • 5.15" inch
Screen resolution
  • 1080 x 1920 px
  • 1080 x 1920 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
  • 64/128 GB
  • 6 GB RAM 64 GB
  • 512GB 4GB
Memory card support
  • No
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 3120 mAh
  • Non-removable Li-Ion
  • 3350 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 5.0.2 (Lollipop); MIUI 8.2
  • Android 7.1.1 (Nougat); MIUI 8
Chipset
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Qualcomm MSM8998 Snapdragon 835 (10 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • No
Display
Display — specifications for Mi 4i, Mi 6.
SpecificationMi 4iMi 6
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 73.1 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 71.7%
  • 71.4%
PPI /points per inch/
  • 441 PPI
  • 428 PPI
Screen protection
  • Corning scratch-resistant glass
  • Corning Gorilla Glass 4
Camera and Video
Camera and Video — specifications for Mi 4i, Mi 6.
SpecificationMi 4iMi 6
Rear camera, main
  • 13 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 13 MP
  • AF
  • f/2.0
  • 12 MP
  • f/1.8
  • 27mm (wide)
  • 1/2.9''
  • 1.25µm
  • 4-axis OIS
  • PDAF -12 MP
  • f/2.6
  • 52mm (telephoto)
  • 1.0µm
  • AF
  • 2x optical zoom
Functions
  • Dual-LED dual-tone flash
  • panorama
  • HDR
  • Dual-LED dual-tone flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 480p@120fps
  • 1080p@30fps
Front camera, selfie
  • 5 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 5 MP
  • f/1.8
  • 8 MP
Performance

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

Performance — specifications for Mi 4i, Mi 6.
SpecificationMi 4iMi 6
Processor CPU
  • Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
  • Octa-core (4x2.45 GHz Kryo & 4x1.9 GHz Kryo)
Graphics processor GPU
  • Adreno 405
  • Adreno 540
Antutu 7 score *
  • 40156
  • 205305
GeekBench 4 Single Core *
  • 617
  • 1894
GeekBench 4 Multi-Core *
  • 1374
  • 6193
GeekBench 4 RenderScript *
  • 1404
  • 7657
Antutu 8 score * Unknown
  • 261141
GeekBench 4 Battery * Unknown
  • 3620
GeekBench 5 Single Core * Unknown
  • 368
GeekBench 5 Multi-Core * Unknown
  • 1463
General specs
General specs — specifications for Mi 4i, Mi 6.
SpecificationMi 4iMi 6
Release date
  • 2015
  • April
  • 2017
  • April
Colors
  • Dark Gray
  • Black
  • White
  • Yellow
  • Blue
  • Pink
  • Ceramic Black
  • Black
  • Blue
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 260 EUR
  • 330 EUR
Battery life
  • Talking time- Up to 35 h (3G)
Unknown
Body build
  • plastic body
  • Front/back glass
  • stainless steel frame
Communication and Connectivity
Communication and Connectivity — specifications for Mi 4i, Mi 6.
SpecificationMi 4iMi 6
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)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat9 450/50 Mbps
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 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • USB Host
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.1
  • A2DP
  • 5.0
  • A2DP
  • LE
Harmful irradiation
  • SAR - 1.29 W/kg (head)
Unknown
Music and Audio
Music and Audio — specifications for Mi 4i, Mi 6.
SpecificationMi 4iMi 6
Radio
  • Stereo FM radio
  • No
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Mi 4i, Mi 6.
SpecificationMi 4iMi 6
Dop
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 40% in 60 min (Quick Charge)
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • barometer
  • Infrared port - Fast battery charging (Quick Charge 3.0) - Splash resistant - For Global market