Lenovo K900 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.

  • Weight

    Redmi 4: 12 g lighter

    K900:
    162 g
    Redmi 4:
    150 g
  • Width

    Redmi 4: 8 mm narrower

    K900:
    78 mm
    Redmi 4:
    70 mm
  • Screen diagonal

    Redmi 4: 0.5 in smaller diagonal

    K900:
    5.5 in
    Redmi 4:
    5 in
  • Chipset

    K900:
    Intel Atom Z2580
    Redmi 4:
    Qualcomm MSM8940 Snapdragon 435 (28 nm)
  • Depth

    K900: 1.8 mm thinner

    K900:
    6.9 mm
    Redmi 4:
    8.7 mm
  • Height

    Redmi 4: 17.8 mm shorter

    K900:
    157 mm
    Redmi 4:
    139.2 mm

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. K900

    Height:
    157 mm +17.8 mm versus Redmi 4
    Width:
    78 mm +8 mm versus Redmi 4
    Depth:
    6.9 mm
  2. 2. Redmi 4

    Height:
    139.2 mm
    Width:
    70 mm
    Depth:
    8.7 mm +1.8 mm versus K900

Weight

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

  1. 1. K900

    162 g

    +12 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. K900

    Screen diagonal:
    5.5 in
    Aspect ratio (height:width):
    16:9
    Approximate rectangular screen area:
    83.4 cm²
  2. 2. Redmi 4

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

K900 has approximately 21% 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 K900, Redmi 4, compared at the same storage capacity.
StorageK900Redmi 4
16 GB 2 GB RAM Unknown
32 GB 2 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. K900

NFC:
Unknown
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. K900

    2500 mAh

  2. 2. Redmi 4

    4100 mAh

    +1600 mAh versus K900

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. K9002. Redmi 4

Everyday essentials
Everyday essentials — specifications for K900, Redmi 4.
SpecificationK900Redmi 4
Dimensions (HxWxD)
  • 157 Х 78 Х 6.9 mm
  • 139.2 Х 70 Х 8.7 mm
Weight
  • 162 g
  • 150 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 5.5" inch
  • 5" inch
Screen resolution
  • 1080 x 1920 px
  • 720 x 1280 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 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.
  • 2500 mAh
  • Non-removable Li-Po
  • 4100 mAh
  • Non-removable Li-Po
Operating system OS
  • Android 4.2 (Jelly Bean)
  • Android 6.0.1 (Marshmallow)
  • upgradable to 7.1.2 (Nougat); MIUI 10
Chipset
  • Intel Atom Z2580
  • Qualcomm MSM8940 Snapdragon 435 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for K900, Redmi 4.
SpecificationK900Redmi 4
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 83.4 cm2
  • 68.9 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 68.1%
  • 70.7%
PPI /points per inch/
  • 401 PPI
  • 294 PPI
Screen protection
  • Corning Gorilla Glass 2
  • Corning Gorilla Glass (unspecified version)
Camera and Video
Camera and Video — specifications for K900, Redmi 4.
SpecificationK900Redmi 4
Rear camera, main
  • 13 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 13 MP
  • AF
  • 13 MP
  • PDAF
  • f/2.0
Functions
  • Dual-LED flash
  • LED flash
  • HDR
  • panorama
Video
  • 1080p@30fps
  • 1080p@30fps
Front camera, selfie
  • 2 MP
  • Single
  • 5 MP
  • Single
Specifications
  • 2 MP
  • 5 MP
  • f/2.2
Performance

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

Performance — specifications for K900, Redmi 4.
SpecificationK900Redmi 4
Processor CPU
  • Dual-core 2.0 GHz
  • Octa-core 1.4 GHz Cortex-A53
Graphics processor GPU
  • PowerVR SGX544MP2
  • Adreno 505
Antutu 7 score *
  • 27313
  • 42175
GeekBench 4 Single Core * Unknown
  • 837
GeekBench 4 Multi-Core * Unknown
  • 2810
GeekBench 4 RenderScript * Unknown
  • 2630
GeekBench 5 Single Core * Unknown
  • 175
GeekBench 5 Multi-Core * Unknown
  • 995
General specs
General specs — specifications for K900, Redmi 4.
SpecificationK900Redmi 4
Release date
  • 2013
  • January. Released 2013
  • April
  • 2017
  • May
Colors
  • Black/Gray
  • Black
  • Gold
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 360 EUR
  • 110 EUR
Battery life
  • Stand by time- Up to 300 h (2G) / Up to 300 h (3G) Talking time- Up to 15 h (2G) / Up to 12 h (3G)
  • 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 K900, Redmi 4.
SpecificationK900Redmi 4
SIM card
  • Micro-SIM
  • Hybrid Dual SIM (Nano-SIM/ Micro-SIM
  • dual stand-by)
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • 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
  • 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
  • dual band
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • microUSB 2.0
  • USB Host
  • microUSB 2.0
Bluetooth
  • 3.0
  • A2DP
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for K900, Redmi 4.
SpecificationK900Redmi 4
Radio
  • Stereo FM radio
  • FM radio
Others
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for K900, Redmi 4.
SpecificationK900Redmi 4
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (rear-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass
  • Infrared port - Also known as Xiaomi Redmi 4X for China
  • Malaysia
  • Pakistan
  • Indonesia