Celkon A86 vs Microsoft Lumia 640 LTE

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.

  • Screen diagonal

    A86: 1.5 in smaller diagonal

    A86:
    3.5 in
    Lumia 640 LTE:
    5 in
  • Chipset

    A86:
    Mediatek MT6515M
    Lumia 640 LTE:
    Qualcomm MSM8926 Snapdragon 400 (28 nm)
  • Release year

    A86:
    2013
    Lumia 640 LTE:
    2015

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. A86

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

    Unavailable dimensions are omitted from the drawing.

  2. 2. Lumia 640 LTE

    Height:
    141.3 mm
    Width:
    72.2 mm
    Depth:
    8.8 mm
    Weight:
    145 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. A86

    Screen diagonal:
    3.5 in
    Aspect ratio (height:width):
    3:2
    Approximate rectangular screen area:
    36.5 cm²
  2. 2. Lumia 640 LTE

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

Lumia 640 LTE has approximately 88.9% more rectangular screen area than A86.

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 A86, Lumia 640 LTE, compared at the same storage capacity.
StorageA86Lumia 640 LTE
8 GB Unknown 1 GB RAM
A86: Original memory entry

512 MB · 512 MB 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. A86

NFC:
Unknown
Headphone jack:
Yes
Memory card support:
See details microSD · up to 32 GB (dedicated slot)

2. Lumia 640 LTE

NFC:
Yes
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. A86

    1400 mAh

  2. 2. Lumia 640 LTE

    2500 mAh

    +1100 mAh versus A86

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. A862. Lumia 640 LTE

Everyday essentials
Everyday essentials — specifications for A86, Lumia 640 LTE.
SpecificationA86Lumia 640 LTE
Dimensions (HxWxD)
  • Х Х mm
  • 141.3 Х 72.2 Х 8.8 mm
Weight
  • 0 g
  • 145 g
Technology Unknown
  • IPS LCD
Screen size
  • 3.5" inch
  • 5" inch
Screen resolution
  • 320 x 480 px
  • 720 x 1280 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 512 MB
  • 512 MB RAM
  • 8 GB
  • 1 GB RAM
Memory card support
  • microSD
  • up to 32 GB (dedicated slot)
  • microSD
  • up to 256 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 1400 mAh
  • Li-Ion
  • 2500 mAh
  • Removable Li-Ion
Operating system OS
  • Android 2.3.6 (Gingerbread)
  • Microsoft Windows Phone 8.1
  • upgradable to Microsoft Windows 10
Chipset
  • Mediatek MT6515M
  • Qualcomm MSM8926 Snapdragon 400 (28 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • Yes
Display
Display — specifications for A86, Lumia 640 LTE.
SpecificationA86Lumia 640 LTE
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors Unknown
  • 16M
Screen area
  • 36.5 cm2
  • 68.9 cm2
Screen format
  • 3:2 (height:width)
  • 16:9 (height:width)
Screen to body ratio Unknown
  • 67.6%
PPI /points per inch/
  • 165 PPI
  • 294 PPI
Screen protection Unknown
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for A86, Lumia 640 LTE.
SpecificationA86Lumia 640 LTE
Rear camera, main
  • 3.15 MP
  • Single
  • 8 MP
  • Single
Camera specs
  • 3.15 MP
  • 8 MP
  • f/2.2
  • 28mm (wide)
  • 1/4''
  • AF
Functions Unknown
  • LED flash
Video
  • Yes
  • 720p
Front camera, selfie
  • 0 MP,
  • 1 MP
  • Single
Specifications Unknown
  • 1 MP
Performance
Performance — specifications for A86, Lumia 640 LTE.
SpecificationA86Lumia 640 LTE
Processor CPU
  • 1.0 GHz Cortex-A9
  • Quad-core 1.2 GHz Cortex-A7
Graphics processor GPU
  • PowerVR SGX531
  • Adreno 305
General specs
General specs — specifications for A86, Lumia 640 LTE.
SpecificationA86Lumia 640 LTE
Release date
  • 2013
  • March
  • 2015
  • March
Colors
  • Black
  • White
  • Glossy cyan
  • Orange
  • White
  • Matte Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer. Unknown
  • 120 EUR
Battery life
  • Stand by time- Up to 145 h Talking time- Up to 4 h
  • Stand by time- Up to 864 h (2G) / Up to 864 h (3G) Talking time- Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G)
Communication and Connectivity
Communication and Connectivity — specifications for A86, Lumia 640 LTE.
SpecificationA86Lumia 640 LTE
SIM card
  • Dual SIM (Mini-SIM)
  • Micro-SIM
Network Unknown
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 2100 HSDPA 850 / 1700(AWS) / 1900 / 2100 - T-Mobile -4G - LTE band 1(2100)
  • 3(1800)
  • 7(2600)
  • 8(900)
  • 20(800) LTE band 1(2100)
  • 2(1900)
  • 4(1700/2100)
  • 5(850)
  • 12(700)
  • 17(700) - T-Mobile
Speed Unknown
  • 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/n
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot
GPS
  • No
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
USB
  • Proprietary
  • microUSB 2.0
Bluetooth
  • Yes
  • 4.0
  • A2DP
Music and Audio
Music and Audio — specifications for A86, Lumia 640 LTE.
SpecificationA86Lumia 640 LTE
Radio
  • FM radio
  • FM radio
Others Unknown
  • ClearBlack display
Other features
Other features — specifications for A86, Lumia 640 LTE.
SpecificationA86Lumia 640 LTE
Dop
  • Sensors Accelerometer
  • proximity - Flashlight
  • Sensors Accelerometer
  • proximity
  • compass