Apple iPhone X vs Xiaomi Mi 4

Compare recorded specifications, size and practical differences.

+ Add a third phone

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.

  • Display technology

    OLED versus LCD

    iPhone X:
    OLED
    Mi 4:
    LCD
  • Weight

    Mi 4: 25 g lighter

    iPhone X:
    174 g
    Mi 4:
    149 g
  • Width

    Mi 4: 2.4 mm narrower

    iPhone X:
    70.9 mm
    Mi 4:
    68.5 mm
  • Screen diagonal

    Mi 4: 0.8 in smaller diagonal

    iPhone X:
    5.8 in
    Mi 4:
    5 in
  • Chipset

    iPhone X:
    Apple A11 Bionic (10 nm)
    Mi 4:
    Qualcomm MSM8974AC Snapdragon 801 (28 nm)
  • Rear camera layout

    iPhone X:
    Dual
    Mi 4:
    Single

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. iPhone X

    Height:
    143.6 mm +4.4 mm versus Mi 4
    Width:
    70.9 mm +2.4 mm versus Mi 4
    Depth:
    7.7 mm
  2. 2. Mi 4

    Height:
    139.2 mm
    Width:
    68.5 mm
    Depth:
    8.9 mm +1.2 mm versus iPhone X

Weight

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

  1. 1. iPhone X

    174 g

    +25 g versus Mi 4

  2. 2. Mi 4

    149 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. iPhone X

    Screen diagonal:
    5.8 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    82.6 cm²
  2. 2. Mi 4

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

iPhone X has approximately 19.8% more rectangular screen area than Mi 4.

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 iPhone X, Mi 4, compared at the same storage capacity.
StorageiPhone XMi 4
64 GB 3 GB RAM Unknown
256 GB 3 GB RAM Unknown
Mi 4: Original memory entry

16/64 GB · 2/3 GB RAM

Practical features

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

1. iPhone X

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

2. Mi 4

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. iPhone X

    2716 mAh

  2. 2. Mi 4

    3080 mAh

    +364 mAh versus iPhone X

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. iPhone X2. Mi 4

Everyday essentials
Everyday essentials — specifications for iPhone X, Mi 4.
SpecificationiPhone XMi 4
Dimensions (HxWxD)
  • 143.6 Х 70.9 Х 7.7 mm
  • 139.2 Х 68.5 Х 8.9 mm
Weight
  • 174 g
  • 149 g
Technology
  • Super AMOLED
  • IPS LCD
Screen size
  • 5.8" inch
  • 5" inch
Screen resolution
  • 1125 x 2436 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64/256 GB
  • 3 GB RAM
  • 16/64 GB
  • 2/3 GB RAM
Memory card support
  • No
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 2716 mAh
  • Non-removable Li-Ion
  • 3080 mAh
  • Non-removable Li-Ion
Operating system OS
  • iOS 11.1.1
  • upgradable to iOS 12.1.3
  • Android 4.4.3 (KitKat)
  • upgradable to 6.0.1 (Marshmallow); MIUI 10
Chipset
  • Apple A11 Bionic (10 nm)
  • Qualcomm MSM8974AC Snapdragon 801 (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • No
  • Yes
Display
Display — specifications for iPhone X, Mi 4.
SpecificationiPhone XMi 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 84.4 cm2
  • 68.9 cm2
Screen format
  • 19.5:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 82.9%
  • 72.3%
PPI /points per inch/
  • 458 PPI
  • 441 PPI
Screen protection
  • Scratch-resistant glass
  • oleophobic coating
Unknown
Camera and Video

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

Camera and Video — specifications for iPhone X, Mi 4.
SpecificationiPhone XMi 4
Rear camera, main
  • 12 MP
  • Dual
  • 13 MP
  • Single
Camera specs
  • 12 MP
  • f/1.8
  • 28mm (wide)
  • 1/3''
  • 1.22µm
  • OIS
  • PDAF -12 MP
  • f/2.4
  • 52mm (telephoto)
  • 1/3.4''
  • 1.0µm
  • PDAF
  • 2x optical zoom
  • 13 MP
  • f/1.8
  • 1/3''
  • 1.12µm
  • AF
Functions
  • HDR
  • LED flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 7 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 7 MP
  • f/2.2
  • 32mm (standard)
  • 8 MP
  • f/1.8
DxOMark Main Score *
  • 97
Unknown
DxOMark Photo *
  • 74
Unknown
DxOMark Video *
  • 66
Unknown
DxOMark Selfie Score *
  • 71
Unknown
Performance

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

Performance — specifications for iPhone X, Mi 4.
SpecificationiPhone XMi 4
Processor CPU
  • Hexa-core 2.39 GHz (2x Monsoon + 4x Mistral)
  • Quad-core 2.5 GHz Krait 400
Graphics processor GPU
  • Apple GPU (three-core graphics)
  • Adreno 330
Antutu 7 score *
  • 245200
  • 61632
GeekBench 4 Single Core *
  • 3226
  • 891
GeekBench 4 Multi-Core *
  • 11951
  • 1967
GeekBench 4 RenderScript * Unknown
  • 1997
Antutu 8 score *
  • 316142
Unknown
General specs
General specs — specifications for iPhone X, Mi 4.
SpecificationiPhone XMi 4
Release date
  • 2017
  • September
  • 2014
  • July
Colors
  • Space Gray
  • Silver
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 1000 EUR
  • 230 EUR
Battery life
  • Talking time- Up to 21 h (3G) Music play - Up to 60 h
  • Stand by time- Up to 280 h (3G)
Body build
  • Front/back glass
  • stainless steel frame
  • aluminum frame
  • plastic back
Communication and Connectivity
Communication and Connectivity — specifications for iPhone X, Mi 4.
SpecificationiPhone XMi 4
SIM card
  • Nano-SIM
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 13(700)
  • 17(700)
  • 18(800)
  • 19(800)
  • 20(800)
  • 25(1900)
  • 26(850)
  • 28(700)
  • 29(700)
  • 30(2300)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • 66(1700/2100)
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - all versions CDMA 800 / 1900 - Telecom 3G model -3G - TD-SCDMA - 4G model HSDPA 850 / 900 / 1900 / 2100 - Unicom 3G model
  • Telecom 3G model CDMA2000 1xEV-DO - Telecom 3G model -4G - LTE band 38(2600)
  • 39(1900)
  • 40(2300) - 4G model
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE-A (3CA) Cat12 600/150 Mbps
  • EV-DO Rev.A 3.1 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE
  • EV-DO Rev.A 3.1 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • QZSS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 2.0
  • proprietary reversible connector
  • microUSB 2.0
  • USB Host
Bluetooth
  • 5.0
  • A2DP
  • LE
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 1.09 W/kg (head) 1.17 W/kg (body)
  • SAR - 1.36 W/kg (head)
Music and Audio
Music and Audio — specifications for iPhone X, Mi 4.
SpecificationiPhone XMi 4
Radio
  • No
  • FM radio
Others
  • Dolby Vision -HDR10 -Wide color gamut -3D Touch -True-tone -120 Hz touch-sensing
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for iPhone X, Mi 4.
SpecificationiPhone XMi 4
Dop
  • Sensors Face ID
  • accelerometer
  • gyro
  • proximity
  • compass
  • barometer - Fast battery charging: 50% in 30 min -Qi wireless charging -Siri natural language commands and dictation - IP67 dust/water resistant (up to 1m for 30 mins) -Apple Pay (Visa
  • MasterCard
  • AMEX certified) - Also known as Apple iPhone 10
  • Apple iPhone Ten Versions: A1865 (USA
  • Hong Kong
  • Australia
  • New Zealand
  • China) A1901 (EMEA
  • UAE
  • LATAM
  • Canada
  • USA AT&T/T-Mobile
  • Singapore)
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • barometer
  • Infrared port - Fast battery charging (Quick Charge 2.0)