Dell XCD28 vs Nokia Lumia 638

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

    XCD28: 36 g lighter

    XCD28:
    100 g
    Lumia 638:
    136 g
  • Width

    XCD28: 11.7 mm narrower

    XCD28:
    55 mm
    Lumia 638:
    66.7 mm
  • Screen diagonal

    XCD28: 1.7 in smaller diagonal

    XCD28:
    2.8 in
    Lumia 638:
    4.5 in
  • Chipset

    XCD28:
    Qualcomm MSM7227 Snapdragon S1
    Lumia 638:
    Qualcomm Snapdragon 400 (28 nm)
  • Depth

    Lumia 638: 5.3 mm thinner

    XCD28:
    14.5 mm
    Lumia 638:
    9.2 mm
  • Height

    XCD28: 27.5 mm shorter

    XCD28:
    102 mm
    Lumia 638:
    129.5 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. XCD28

    Height:
    102 mm
    Width:
    55 mm
    Depth:
    14.5 mm +5.3 mm versus Lumia 638
  2. 2. Lumia 638

    Height:
    129.5 mm +27.5 mm versus XCD28
    Width:
    66.7 mm +11.7 mm versus XCD28
    Depth:
    9.2 mm

Weight

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

  1. 1. XCD28

    100 g

  2. 2. Lumia 638

    136 g

    +36 g versus XCD28

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. XCD28

    Screen diagonal:
    2.8 in
    Aspect ratio (height:width):
    4:3
    Approximate rectangular screen area:
    24.3 cm²
  2. 2. Lumia 638

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

Lumia 638 has approximately 129.9% more rectangular screen area than XCD28.

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 XCD28, Lumia 638, compared at the same storage capacity.
StorageXCD28Lumia 638
8 GB Unknown 1 GB RAM
XCD28: Original memory entry

256 MB RAM · 256 MB

Practical features

Explicit Yes and No values are shown directly. Qualified or regional records retain their details. Unknown means the record is missing.

1. XCD28

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 8 GB (dedicated slot) · 2 GB included

2. Lumia 638

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 256 GB (dedicated 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. XCD28

    1100 mAh

  2. 2. Lumia 638

    1830 mAh

    +730 mAh versus XCD28

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. XCD282. Lumia 638

Everyday essentials
Everyday essentials — specifications for XCD28, Lumia 638.
SpecificationXCD28Lumia 638
Dimensions (HxWxD)
  • 102 Х 55 Х 14.5 mm
  • 129.5 Х 66.7 Х 9.2 mm
Weight
  • 100 g
  • 136 g
Technology
  • TFT
  • IPS LCD
Screen size
  • 2.8" inch
  • 4.5" inch
Screen resolution
  • 240 x 320 px
  • 480 x 854 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 256 MB RAM
  • 256 MB
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 8 GB (dedicated slot)
  • 2 GB included
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1100 mAh
  • Removable Li-Ion
  • 1830 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.1 (Eclair)
  • Microsoft Windows Phone 8.1
Chipset
  • Qualcomm MSM7227 Snapdragon S1
  • Qualcomm Snapdragon 400 (28 nm)
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for XCD28, Lumia 638.
SpecificationXCD28Lumia 638
Touchscreen
  • resistive touchscreen
  • capacitive touchscreen
Display colors
  • 256K
  • 16M
Screen area
  • 24.3 cm2
  • 55.8 cm2
Screen format
  • 4:3 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 43.3%
  • 64.6%
PPI /points per inch/
  • 143 PPI
  • 218 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for XCD28, Lumia 638.
SpecificationXCD28Lumia 638
Rear camera, main
  • 3.15 MP
  • Single
  • 5 MP
  • Single
Camera specs
  • 3.15 MP
  • AF
  • 5 MP
  • 1/4''
  • AF
Functions Unknown
  • panorama
Video
  • Yes
  • Yes
Front camera, selfie
  • 0 MP,
  • 0 MP,
Performance
Performance — specifications for XCD28, Lumia 638.
SpecificationXCD28Lumia 638
Processor CPU
  • 600 MHz ARM 11
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • Adreno 200
  • Adreno 305
General specs
General specs — specifications for XCD28, Lumia 638.
SpecificationXCD28Lumia 638
Release date
  • 2010
  • November
  • 2014
  • December
Colors
  • Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 180 EUR
  • 100 EUR
Communication and Connectivity
Communication and Connectivity — specifications for XCD28, Lumia 638.
SpecificationXCD28Lumia 638
SIM card
  • Mini-SIM
  • Micro-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1900 / 2100 - RM-1010 -4G - LTE band 3(1800)
  • 7(2600)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
Speed
  • HSPA 7.2/0.384 Mbps
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot
GPS
  • Yes
  • with A-GPS
  • Yes
  • with A-GPS
  • GLONASS
USB
  • microUSB 2.0
  • microUSB 2.0
Bluetooth
  • 2.1
  • A2DP
  • EDR
  • 4.0
  • A2DP
  • LE/ aptX after WP8 Denim update
Harmful irradiation Unknown
  • SAR EU - 1.46 W/kg (head) 0.95 W/kg (body)
Music and Audio
Music and Audio — specifications for XCD28, Lumia 638.
SpecificationXCD28Lumia 638
Radio
  • Stereo FM radio
  • RDS
  • FM radio
Others Unknown
  • ClearBlack display
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for XCD28, Lumia 638.
SpecificationXCD28Lumia 638
Dop
  • MP4/H.264 player -MP3/WAV/eAAC+ player -Organizer -Document viewer -Voice memo -Predictive text input
  • Sensors Accelerometer