Infinix Zero 4 vs Xiaomi Redmi K20

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

    Zero 4:
    LCD
    Redmi K20:
    OLED
  • Weight

    Zero 4: 23.5 g lighter

    Zero 4:
    167.5 g
    Redmi K20:
    191 g
  • Width

    Redmi K20: 1.7 mm narrower

    Zero 4:
    76 mm
    Redmi K20:
    74.3 mm
  • Screen diagonal

    Zero 4: 0.89 in smaller diagonal

    Zero 4:
    5.5 in
    Redmi K20:
    6.39 in
  • Chipset

    Zero 4:
    Mediatek MT6753 (28 nm)
    Redmi K20:
    Qualcomm SDM730 Snapdragon 730 (8 nm)
  • Rear camera layout

    Zero 4:
    Single
    Redmi K20:
    Triple

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. Zero 4

    Height:
    151.5 mm
    Width:
    76 mm +1.7 mm versus Redmi K20
    Depth:
    7.8 mm
  2. 2. Redmi K20

    Height:
    156.7 mm +5.2 mm versus Zero 4
    Width:
    74.3 mm
    Depth:
    8.8 mm +1 mm versus Zero 4

Weight

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

  1. 1. Zero 4

    167.5 g

  2. 2. Redmi K20

    191 g

    +23.5 g versus Zero 4

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. Zero 4

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Redmi K20

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

Redmi K20 has approximately 20.2% more rectangular screen area than Zero 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 Zero 4, Redmi K20, compared at the same storage capacity.
StorageZero 4Redmi K20
32 GB 3 GB RAM Unknown
Redmi K20: Original memory entry

256 GB · 8 GB RAM 64/128 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. Zero 4

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 128 GB (dedicated slot)

2. Redmi K20

NFC:
Yes
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. Zero 4

    3200 mAh

  2. 2. Redmi K20

    4000 mAh

    +800 mAh versus Zero 4

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. Zero 42. Redmi K20

Everyday essentials
Everyday essentials — specifications for Zero 4, Redmi K20.
SpecificationZero 4Redmi K20
Dimensions (HxWxD)
  • 151.5 Х 76 Х 7.8 mm
  • 156.7 Х 74.3 Х 8.8 mm
Weight
  • 167.5 g
  • 191 g
Technology
  • IPS LCD
  • AMOLED
Screen size
  • 5.5" inch
  • 6.39" inch
Screen resolution
  • 1080 x 1920 px
  • 1080 x 2340 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 32 GB
  • 3 GB RAM
  • 256 GB
  • 8 GB RAM 64/128 GB
  • 6 GB RAM
Memory card support
  • microSD
  • up to 128 GB (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 3200 mAh
  • Non-removable Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 6.0 (Marshmallow)
  • Android 9.0 (Pie); MIUI 10
Chipset
  • Mediatek MT6753 (28 nm)
  • Qualcomm SDM730 Snapdragon 730 (8 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for Zero 4, Redmi K20.
SpecificationZero 4Redmi K20
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 100.2 cm2
Screen format
  • 16:9 (height:width)
  • 19.5:9 (height:width)
Screen to body ratio
  • 72.4%
  • 86.1%
PPI /points per inch/
  • 401 PPI
  • 403 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 5
Camera and Video
Camera and Video — specifications for Zero 4, Redmi K20.
SpecificationZero 4Redmi K20
Rear camera, main
  • 16 MP
  • Single
  • 48 MP
  • Triple
Camera specs
  • 16 MP
  • f/2.0
  • OIS
  • Laser AF/ PDAF
  • 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''
Functions
  • LED flash
  • HDR
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 8 MP
  • Single
  • 20 MP
  • Single
Specifications
  • 8 MP
  • f/2.2
  • Motorized pop-up 20 MP
  • f/2.2
  • 0.8µm
Performance

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

Performance — specifications for Zero 4, Redmi K20.
SpecificationZero 4Redmi K20
Processor CPU
  • Octa-core 1.3 GHz Cortex-A53
  • Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver)
Graphics processor GPU
  • Mali-T720MP3
  • Adreno 618
Antutu 7 score *
  • 22135
Unknown
GeekBench 4 Single Core *
  • 632
  • 2963
GeekBench 4 Multi-Core *
  • 2913
  • 10109
GeekBench 5 Single Core *
  • 110
  • 525
GeekBench 5 Multi-Core *
  • 418
  • 1629
General specs
General specs — specifications for Zero 4, Redmi K20.
SpecificationZero 4Redmi K20
Release date
  • 2017
  • March
  • 2019
  • May
Colors
  • Anthracite Grey
  • Champagne Gold
  • Barbie Pink
  • Filber Brown
  • Carbon black
  • Flame red
  • Glacier blue
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 260 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Zero 4, Redmi K20.
SpecificationZero 4Redmi K20
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 / 900 / 2100 HSDPA 850 / 1700 / 1900 / 2100 -4G - LTE band 1(2100)
  • 3(1800)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 20(800)
  • 38(2600)
  • 40(2300) LTE band 2(1900)
  • 4(1700/2100)
  • 28(700)
  • 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)
  • 34(2000)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE-A
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • WiFi Direct
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • GALILEO
  • BDS
USB
  • microUSB 2.0
  • USB On-The-Go
  • 2.0
  • Type-C 1.0 reversible connector
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • LE
  • 5.0
  • A2DP
  • LE
  • aptX HD
Music and Audio
Music and Audio — specifications for Zero 4, Redmi K20.
SpecificationZero 4Redmi K20
Radio
  • FM radio
  • Yes
Others Unknown
  • HDR
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Zero 4, Redmi K20.
SpecificationZero 4Redmi K20
Dop
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Sensors Fingerprint (under display)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 18W - Also known as Xiaomi Mi 9T in Russia