Xiaomi Mi 9T vs Xiaomi Redmi 4

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

    Mi 9T:
    OLED
    Redmi 4:
    LCD
  • Weight

    Redmi 4: 41 g lighter

    Mi 9T:
    191 g
    Redmi 4:
    150 g
  • Width

    Redmi 4: 4.3 mm narrower

    Mi 9T:
    74.3 mm
    Redmi 4:
    70 mm
  • Screen diagonal

    Redmi 4: 1.39 in smaller diagonal

    Mi 9T:
    6.39 in
    Redmi 4:
    5 in
  • Chipset

    Mi 9T:
    Qualcomm SDM730 Snapdragon 730 (8 nm)
    Redmi 4:
    Qualcomm MSM8940 Snapdragon 435 (28 nm)
  • Rear camera layout

    Mi 9T:
    Triple
    Redmi 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. Mi 9T

    Height:
    156.7 mm +17.5 mm versus Redmi 4
    Width:
    74.3 mm +4.3 mm versus Redmi 4
    Depth:
    8.8 mm
  2. 2. Redmi 4

    Height:
    139.2 mm
    Width:
    70 mm
    Depth:
    8.7 mm

Weight

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

  1. 1. Mi 9T

    191 g

    +41 g versus Redmi 4

  2. 2. Redmi 4

    150 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. Mi 9T

    Screen diagonal:
    6.39 in
    Aspect ratio (height:width):
    19.5:9
    Approximate rectangular screen area:
    100.2 cm²
  2. 2. Redmi 4

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

Mi 9T has approximately 45.4% more rectangular screen area than Redmi 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 Mi 9T, Redmi 4, compared at the same storage capacity.
StorageMi 9TRedmi 4
64 GB 6 GB RAM Unknown
128 GB 6 GB RAM Unknown
Redmi 4: Original memory entry

64 GB · 4 GB RAM 32 GB · 3 GB RAM 16 GB · 2 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. Mi 9T

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

2. Redmi 4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (uses SIM 2 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 9T

    4000 mAh

  2. 2. Redmi 4

    4100 mAh

    +100 mAh versus Mi 9T

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 9T2. Redmi 4

Everyday essentials
Everyday essentials — specifications for Mi 9T, Redmi 4.
SpecificationMi 9TRedmi 4
Dimensions (HxWxD)
  • 156.7 Х 74.3 Х 8.8 mm
  • 139.2 Х 70 Х 8.7 mm
Weight
  • 191 g
  • 150 g
Technology
  • AMOLED
  • IPS LCD
Screen size
  • 6.39" inch
  • 5" inch
Screen resolution
  • 1080 x 2340 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64/128 GB
  • 6 GB RAM
  • 64 GB
  • 4 GB RAM 32 GB
  • 3 GB RAM 16 GB
  • 2 GB RAM
Memory card support
  • No
  • microSD
  • up to 128 GB (uses SIM 2 slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 4000 mAh
  • Non-removable Li-Po
  • 4100 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 9.0 (Pie); MIUI 10
  • Android 6.0.1 (Marshmallow)
  • upgradable to 7.1.2 (Nougat); MIUI 10
Chipset
  • Qualcomm SDM730 Snapdragon 730 (8 nm)
  • Qualcomm MSM8940 Snapdragon 435 (28 nm)
NFC
  • Yes
Unknown
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Mi 9T, Redmi 4.
SpecificationMi 9TRedmi 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 100.2 cm2
  • 68.9 cm2
Screen format
  • 19.5:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 86.1%
  • 70.7%
PPI /points per inch/
  • 403 PPI
  • 294 PPI
Screen protection
  • Corning Gorilla Glass 5
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for Mi 9T, Redmi 4.
SpecificationMi 9TRedmi 4
Rear camera, main
  • 48 MP
  • Triple
  • 13 MP
  • Single
Camera specs
  • 48 MP
  • f/1.8
  • 26mm (wide)
  • 1/2''
  • 0.8µm
  • PDAF -8 MP
  • f/2.4
  • 53mm (telephoto)
  • 1/4''
  • 1.12µm
  • PDAF
  • 2x optical zoom -13 MP
  • 12mm (ultrawide)
  • 1/3''
  • 13 MP
  • PDAF
  • f/2.0
Functions
  • HDR
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 20 MP
  • Single
  • 5 MP
  • Single
Specifications
  • Motorized pop-up 20 MP
  • f/2.2
  • 0.8µm
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for Mi 9T, Redmi 4.
SpecificationMi 9TRedmi 4
Processor CPU
  • Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
  • Octa-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • Adreno 618
  • Adreno 505
Antutu 7 score *
  • 218548
  • 42175
GeekBench 4 Single Core *
  • 2540
  • 837
GeekBench 4 Multi-Core *
  • 6911
  • 2810
GeekBench 4 RenderScript * Unknown
  • 2630
Antutu 8 score *
  • 264797
Unknown
GeekBench 5 Single Core *
  • 529
  • 175
GeekBench 5 Multi-Core *
  • 1658
  • 995
General specs
General specs — specifications for Mi 9T, Redmi 4.
SpecificationMi 9TRedmi 4
Release date
  • 2019
  • June
  • 2017
  • May
Colors
  • Carbon black
  • Red flame
  • Glacier blue
  • Black
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 300 EUR
  • 110 EUR
Battery life Unknown
  • Stand by time- Up to 432 h (3G) Talking time- Up to 36 h (3G) Music play - Up to 87 h
Body build Unknown
  • Front glass
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Mi 9T, Redmi 4.
SpecificationMi 9TRedmi 4
SIM card
  • Dual SIM (Nano-SIM
  • dual stand-by)
  • Hybrid Dual SIM (Nano-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 / 1700(AWS) / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 28(700)
  • 38(2600)
  • 40(2300)
  • 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 42.2/5.76 Mbps
  • LTE-A
  • HSPA 42.2/5.76 Mbps
  • LTE-A (2CA) Cat6 300/100 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
  • microUSB 2.0
Bluetooth
  • 5.0
  • A2DP
  • LE
  • aptX HD
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Mi 9T, Redmi 4.
SpecificationMi 9TRedmi 4
Radio
  • Yes
  • FM radio
Others
  • HDR
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Mi 9T, Redmi 4.
SpecificationMi 9TRedmi 4
Dop
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 18W - For Global market
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Also known as Xiaomi Redmi 4X for China
  • Malaysia
  • Pakistan
  • Indonesia