OnePlus 6 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.

  • Display technology

    OLED versus LCD

    6:
    OLED
    Mi 4i:
    LCD
  • Weight

    Mi 4i: 47 g lighter

    6:
    177 g
    Mi 4i:
    130 g
  • Width

    Mi 4i: 5.8 mm narrower

    6:
    75.4 mm
    Mi 4i:
    69.6 mm
  • Screen diagonal

    Mi 4i: 1.28 in smaller diagonal

    6:
    6.28 in
    Mi 4i:
    5 in
  • Chipset

    6:
    Qualcomm SDM845 Snapdragon 845 (10 nm)
    Mi 4i:
    Qualcomm MSM8939 Snapdragon 615 (28 nm)
  • Rear camera layout

    6:
    Dual
    Mi 4i:
    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. 6

    Height:
    155.7 mm +17.6 mm versus Mi 4i
    Width:
    75.4 mm +5.8 mm versus Mi 4i
    Depth:
    7.8 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. 6

    177 g

    +47 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. 6

    Screen diagonal:
    6.28 in
    Aspect ratio (height:width):
    19:9
    Approximate rectangular screen area:
    98.4 cm²
  2. 2. Mi 4i

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

6 has approximately 42.8% 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 6, Mi 4i, compared at the same storage capacity.
Storage6Mi 4i
16 GB Unknown 2 GB RAM
32 GB Unknown 2 GB RAM
6: Original memory entry

128/256 GB · 8 GB RAM 64 GB · 6 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. 6

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

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. 6

    3300 mAh

    +180 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. 62. Mi 4i

Everyday essentials
Everyday essentials — specifications for 6, Mi 4i.
Specification6Mi 4i
Dimensions (HxWxD)
  • 155.7 Х 75.4 Х 7.8 mm
  • 138.1 Х 69.6 Х 7.8 mm
Weight
  • 177 g
  • 130 g
Technology
  • Optic AMOLED
  • IPS LCD
Screen size
  • 6.28" inch
  • 5" inch
Screen resolution
  • 1080 x 2280 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 128/256 GB
  • 8 GB RAM 64 GB
  • 6 GB RAM
  • 16/32 GB
  • 2 GB RAM
Memory card support
  • No
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 3300 mAh
  • Non-removable Li-Po
  • 3120 mAh
  • Non-removable Li-Ion
Operating system OS
  • Android 8.1 (Oreo)
  • upgradable to Android 9.0 (Pie); OxygenOS 9.0.2
  • Android 5.0.2 (Lollipop); MIUI 8.2
Chipset
  • Qualcomm SDM845 Snapdragon 845 (10 nm)
  • Qualcomm MSM8939 Snapdragon 615 (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for 6, Mi 4i.
Specification6Mi 4i
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 98.4 cm2
  • 68.9 cm2
Screen format
  • 19:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 83.8%
  • 71.7%
PPI /points per inch/
  • 402 PPI
  • 441 PPI
Screen protection
  • Corning Gorilla Glass 5
  • Corning scratch-resistant glass
Camera and Video

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

Camera and Video — specifications for 6, Mi 4i.
Specification6Mi 4i
Rear camera, main
  • 16 MP
  • Dual
  • 13 MP
  • Single
Camera specs
  • 16 MP
  • f/1.7
  • 25mm (wide)
  • 1/2.6''
  • 1.22µm
  • OIS
  • PDAF -20 MP (16 MP effective)
  • 1/2.8''
  • 1.0µm
  • PDAF
  • 13 MP
  • AF
  • f/2.0
Functions
  • Auto-HDR
  • gyro-EIS
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
  • 480p@120fps
Front camera, selfie
  • 16 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 16 MP
  • f/2.0
  • 25mm (wide)
  • 1/3.1''
  • 1.0µm
  • 5 MP
  • f/1.8
DxOMark Main Score *
  • 96
Unknown
DxOMark Photo *
  • 100
Unknown
DxOMark Video *
  • 87
Unknown
Performance

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

Performance — specifications for 6, Mi 4i.
Specification6Mi 4i
Processor CPU
  • Octa-core (4x2.8 GHz Kryo 385 Gold & 4x1.7 GHz Kryo 385 Silver)
  • Octa-core (4x1.7 GHz Cortex-A53 & 4x1.0 GHz Cortex-A53)
Graphics processor GPU
  • Adreno 630
  • Adreno 405
Antutu 7 score *
  • 297021
  • 40156
GeekBench 4 Single Core *
  • 2390
  • 617
GeekBench 4 Multi-Core *
  • 8846
  • 1374
GeekBench 4 RenderScript *
  • 13505
  • 1404
Antutu 8 score *
  • 357294
Unknown
GeekBench 4 Battery *
  • 3565
Unknown
GeekBench 5 Single Core *
  • 501
Unknown
GeekBench 5 Multi-Core *
  • 2216
Unknown
General specs
General specs — specifications for 6, Mi 4i.
Specification6Mi 4i
Release date
  • 2018
  • May
  • 2015
  • April
Colors
  • Midnight Black
  • Mirror Black
  • Silk White
  • Amber Red
  • Dark Gray
  • Black
  • White
  • Yellow
  • Blue
  • Pink
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 520 EUR
  • 260 EUR
Battery life Unknown
  • Talking time- Up to 35 h (3G)
Body build
  • Front/back glass
  • aluminum frame
  • plastic body
Communication and Connectivity
Communication and Connectivity — specifications for 6, Mi 4i.
Specification6Mi 4i
SIM card
  • 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 CDMA 800 / 1900 & TD-SCDMA -3G - HSDPA 800 / 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)
  • 17(700)
  • 18(800)
  • 19(800)
  • 20(800)
  • 25(1900)
  • 26(850)
  • 28(700)
  • 29(700)
  • 30(2300)
  • 32(1500)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • 66(1700/2100)
  • 71(600) - Europe
  • North America LTE band 1(2100)
  • 66(1700/2100) - India
  • Asia
  • China
  • 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-A (4CA) Cat16 1024/150 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • DLNA
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • GALILEO
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • microUSB 2.0
  • USB Host
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX HD
  • 4.1
  • A2DP
Harmful irradiation Unknown
  • SAR - 1.29 W/kg (head)
Music and Audio
Music and Audio — specifications for 6, Mi 4i.
Specification6Mi 4i
Radio
  • No
  • Stereo FM radio
Others
  • DCI-P3
  • Active noise cancellation with dedicated mic -Dirac HD sound
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for 6, Mi 4i.
Specification6Mi 4i
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 5V 4A 20W (Dash Charge) - Splash resistant - For Europe
  • Asia
  • North America
  • China
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging: 40% in 60 min (Quick Charge)