Palm Centro vs Xiaomi Mi 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

    Centro: 25 g lighter

    Centro:
    124 g
    Mi 4:
    149 g
  • Width

    Centro: 15 mm narrower

    Centro:
    53.5 mm
    Mi 4:
    68.5 mm
  • Screen diagonal

    Centro: 2.75 in smaller diagonal

    Centro:
    2.25 in
    Mi 4:
    5 in
  • Depth

    Mi 4: 9.7 mm thinner

    Centro:
    18.6 mm
    Mi 4:
    8.9 mm
  • Height

    Centro: 32 mm shorter

    Centro:
    107.2 mm
    Mi 4:
    139.2 mm
  • Release year

    Centro:
    2008
    Mi 4:
    2014

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. Centro

    Height:
    107.2 mm
    Width:
    53.5 mm
    Depth:
    18.6 mm +9.7 mm versus Mi 4
  2. 2. Mi 4

    Height:
    139.2 mm +32 mm versus Centro
    Width:
    68.5 mm +15 mm versus Centro
    Depth:
    8.9 mm

Weight

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

  1. 1. Centro

    124 g

  2. 2. Mi 4

    149 g

    +25 g versus Centro

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. Centro

    Screen diagonal:
    2.25 in
    Aspect ratio (height:width):
    1:1
    Approximate rectangular screen area:
    16.3 cm²
  2. 2. Mi 4

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

Mi 4 has approximately 322% more rectangular screen area than Centro.

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.

No unambiguous storage/RAM pairings are recorded. See the original specifications below.

Centro: Original memory entry

64 MB

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. Centro

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 4 GB (dedicated slot)

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. Centro

    1150 mAh

  2. 2. Mi 4

    3080 mAh

    +1930 mAh versus Centro

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. Centro2. Mi 4

Everyday essentials
Everyday essentials — specifications for Centro, Mi 4.
SpecificationCentroMi 4
Dimensions (HxWxD)
  • 107.2 Х 53.5 Х 18.6 mm
  • 139.2 Х 68.5 Х 8.9 mm
Weight
  • 124 g
  • 149 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.25" inch
  • 5" inch
Screen resolution
  • 320 x 320 px
  • 1080 x 1920 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 64 MB
  • 16/64 GB
  • 2/3 GB RAM
Memory card support
  • microSD
  • up to 4 GB (dedicated slot)
  • No
Battery Capacity is not battery life. No endurance test is implied.
  • 1150 mAh
  • Removable Li-Ion
  • 3080 mAh
  • Non-removable Li-Ion
Operating system OS
  • Palm OS 5.4.9
  • Android 4.4.3 (KitKat)
  • upgradable to 6.0.1 (Marshmallow); MIUI 10
Chipset Unknown
  • Qualcomm MSM8974AC Snapdragon 801 (28 nm)
Headphone jack
  • No
  • Yes
Display
Display — specifications for Centro, Mi 4.
SpecificationCentroMi 4
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 65K
  • 16M
Screen area
  • 16.3 cm2
  • 68.9 cm2
Screen format
  • 1:1 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 28.5%
  • 72.3%
PPI /points per inch/
  • 201 PPI
  • 441 PPI
Camera and Video
Camera and Video — specifications for Centro, Mi 4.
SpecificationCentroMi 4
Rear camera, main
  • 1.3 MP
  • Single
  • 13 MP
  • Single
Camera specs
  • 1.3 MP
  • 13 MP
  • f/1.8
  • 1/3''
  • 1.12µm
  • AF
Functions Unknown
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 8 MP
  • Single
Specifications Unknown
  • 8 MP
  • f/1.8
Performance

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

Performance — specifications for Centro, Mi 4.
SpecificationCentroMi 4
Processor CPU
  • 32-bit Intel XScale PXA270 312 MHz
  • Quad-core 2.5 GHz Krait 400
Graphics processor GPU Unknown
  • Adreno 330
Antutu 7 score * Unknown
  • 61632
GeekBench 4 Single Core * Unknown
  • 891
GeekBench 4 Multi-Core * Unknown
  • 1967
GeekBench 4 RenderScript * Unknown
  • 1997
General specs
General specs — specifications for Centro, Mi 4.
SpecificationCentroMi 4
Release date
  • 2008
  • February
  • 2014
  • July
Colors
  • Obsidian
  • Glacier
  • Midnight
  • Cobalt
  • Onyx
  • Electric Blue
  • Rose
  • Olive
  • Black
  • White
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 70 EUR
  • 230 EUR
Battery life
  • Stand by time- Up to 300 h Talking time- Up to 4 h
  • Stand by time- Up to 280 h (3G)
Body build Unknown
  • aluminum frame
  • plastic back
Communication and Connectivity
Communication and Connectivity — specifications for Centro, Mi 4.
SpecificationCentroMi 4
SIM card
  • Mini-SIM
  • Micro-SIM
Network Unknown
  • 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 Unknown
  • HSPA 42.2/5.76 Mbps
  • LTE
  • EV-DO Rev.A 3.1 Mbps
GPRS
  • Class 10
  • Yes
Edge
  • Class 10
  • Yes
Wi-Fi
  • No
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • Wi-Fi Direct
  • DLNA
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • Proprietary
  • microUSB 2.0
  • USB Host
Bluetooth
  • 1.2
  • A2DP
  • 4.0
  • A2DP
Harmful irradiation
  • SAR - 0.27 W/kg (head) 0.22 W/kg (body)
  • SAR - 1.36 W/kg (head)
Music and Audio
Music and Audio — specifications for Centro, Mi 4.
SpecificationCentroMi 4
Radio
  • No
  • FM radio
Others
  • 5-way navigation button
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Centro, Mi 4.
SpecificationCentroMi 4
Dop
  • Infrared port - Document editor (Word
  • Excel
  • PowerPoint
  • PDF) -MP3 player -Organizer -Voice memo
  • Sensors Accelerometer
  • gyro
  • proximity
  • compass
  • barometer
  • Infrared port - Fast battery charging (Quick Charge 2.0)