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Nokia Lumia 638 vs Sharp Pi

Compare recorded specifications, size and practical differences.

+ Add a third phone

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.

  • Screen diagonal

    Lumia 638: 0.7 in smaller diagonal

    Lumia 638:
    4.5 in
    Pi:
    5.2 in
  • Chipset

    Lumia 638:
    Qualcomm Snapdragon 400 (28 nm)
    Pi:
    Mediatek MT6737M (28 nm)
  • Rear camera layout

    Lumia 638:
    Single
    Pi:
    Dual
  • Release year

    Lumia 638:
    2014
    Pi:
    2018

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. Lumia 638

    Height:
    129.5 mm
    Width:
    66.7 mm
    Depth:
    9.2 mm
    Weight:
    136 g
  2. 2. Pi

    Height:
    Unknown
    Width:
    Unknown
    Depth:
    Unknown
    Weight:
    Unknown

    Unavailable dimensions are omitted from the drawing.

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. Lumia 638

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

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

Pi has approximately 33.5% more rectangular screen area than Lumia 638.

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 Lumia 638, Pi, compared at the same storage capacity.
StorageLumia 638Pi
8 GB 1 GB RAM Not recorded
16 GB Not recorded 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. Lumia 638

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

2. Pi

NFC:
Unknown
Headphone jack:
No
Memory card support:
See details microSD · up to 128 GB

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. Lumia 638

    1830 mAh

  2. 2. Pi

    3000 mAh

    +1170 mAh versus Lumia 638

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. Lumia 6382. Pi

Everyday essentials
Everyday essentials — specifications for Lumia 638, Pi.
SpecificationLumia 638Pi
Dimensions (HxWxD)
  • 129.5 Х 66.7 Х 9.2 mm
  • Х Х mm
Weight
  • 136 g
  • 0 g
Technology
  • IPS LCD
  • IPS LCD
Screen size
  • 4.5" inch
  • 5.2" inch
Screen resolution
  • 480 x 854 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 16 GB
  • 2 GB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 128 GB
Battery Capacity is not battery life. No endurance test is implied.
  • 1830 mAh
  • Removable Li-Ion
  • 3000 mAh
  • Li-Ion
Operating system OS
  • Microsoft Windows Phone 8.1
  • Android 7.0 (Nougat)
Chipset
  • Qualcomm Snapdragon 400 (28 nm)
  • Mediatek MT6737M (28 nm)
Headphone jack
  • Yes
  • No
Display
Display — specifications for Lumia 638, Pi.
SpecificationLumia 638Pi
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 55.8 cm2
  • 74.5 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 64.6%
Unknown
PPI /points per inch/
  • 218 PPI
  • 282 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Scratch-resistant glass
Camera and Video
Camera and Video — specifications for Lumia 638, Pi.
SpecificationLumia 638Pi
Rear camera, main
  • 5 MP
  • Single
  • 13 MP
  • Dual
Camera specs
  • 5 MP
  • 1/4''
  • AF
  • 13 MP
  • f/2.2
  • AF -2 MP
  • depth sensor
Functions
  • panorama
  • LED flash
  • panorama
  • HDR
Video
  • Yes
  • 1080p@30fps
Front camera, selfie
  • 0 MP,
  • 8 MP
  • Single
Specifications Unknown
  • 8 MP
Performance
Performance — specifications for Lumia 638, Pi.
SpecificationLumia 638Pi
Processor CPU
  • Quad-core 1.2 GHz Cortex-A7
  • Quad-core 1.3 GHz Cortex-A53
Graphics processor GPU
  • Adreno 305
  • Mali-T720
General specs
General specs — specifications for Lumia 638, Pi.
SpecificationLumia 638Pi
Release date
  • 2014
  • December
  • 2018
  • February
Colors
  • Black
  • White/Gold
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 100 EUR
  • 110 EUR
Communication and Connectivity
Communication and Connectivity — specifications for Lumia 638, Pi.
SpecificationLumia 638Pi
SIM card
  • Micro-SIM
  • Dual SIM (Nano-SIM
  • dual stand-by)
Network
  • 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)
  • 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)
  • 40(2300)
Speed
  • HSPA 42.2/5.76 Mbps
  • LTE Cat4 150/50 Mbps
  • HSPA
  • LTE Cat4 150/50 Mbps
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • microUSB 2.0
  • USB On-The-Go
Bluetooth
  • 4.0
  • A2DP
  • LE/ aptX after WP8 Denim update
  • 4.0
  • A2DP
Harmful irradiation
  • SAR EU - 1.46 W/kg (head) 0.95 W/kg (body)
Unknown
Music and Audio
Music and Audio — specifications for Lumia 638, Pi.
SpecificationLumia 638Pi
Radio
  • FM radio
  • To be confirmed
Others
  • ClearBlack display
  • Active noise cancellation with dedicated mic
  • Active noise cancellation with dedicated mic
Other features
Other features — specifications for Lumia 638, Pi.
SpecificationLumia 638Pi
Dop
  • Sensors Accelerometer
  • Sensors Fingerprint (front-mounted)
  • accelerometer
  • proximity - For Indonesia
  • Vietnam