Microsoft Lumia 640 Dual SIM vs Razer Phone

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

    Lumia 640 Dual SIM: 52 g lighter

    Lumia 640 Dual SIM:
    145 g
    Phone:
    197 g
  • Width

    Lumia 640 Dual SIM: 5.5 mm narrower

    Lumia 640 Dual SIM:
    72.2 mm
    Phone:
    77.7 mm
  • Screen diagonal

    Lumia 640 Dual SIM: 0.7 in smaller diagonal

    Lumia 640 Dual SIM:
    5 in
    Phone:
    5.7 in
  • Chipset

    Lumia 640 Dual SIM:
    Qualcomm MSM8926 Snapdragon 400 (28 nm)
    Phone:
    Qualcomm MSM8998 Snapdragon 835 (10 nm)
  • Rear camera layout

    Lumia 640 Dual SIM:
    Single
    Phone:
    Dual
  • Depth

    Phone: 0.8 mm thinner

    Lumia 640 Dual SIM:
    8.8 mm
    Phone:
    8 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. Lumia 640 Dual SIM

    Height:
    141.3 mm
    Width:
    72.2 mm
    Depth:
    8.8 mm +0.8 mm versus Phone
  2. 2. Phone

    Height:
    158.5 mm +17.2 mm versus Lumia 640 Dual SIM
    Width:
    77.7 mm +5.5 mm versus Lumia 640 Dual SIM
    Depth:
    8 mm

Weight

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

  1. 1. Lumia 640 Dual SIM

    145 g

  2. 2. Phone

    197 g

    +52 g versus Lumia 640 Dual SIM

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 640 Dual SIM

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

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

Phone has approximately 30% more rectangular screen area than Lumia 640 Dual SIM.

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 640 Dual SIM, Phone, compared at the same storage capacity.
StorageLumia 640 Dual SIMPhone
8 GB 1 GB RAM Not recorded
64 GB Not recorded 8 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 640 Dual SIM

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

2. Phone

NFC:
Yes
Headphone jack:
No
Memory card support:
See details microSD · up to 512 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. Lumia 640 Dual SIM

    2500 mAh

  2. 2. Phone

    4000 mAh

    +1500 mAh versus Lumia 640 Dual SIM

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 640 Dual SIM2. Phone

Everyday essentials
Everyday essentials — specifications for Lumia 640 Dual SIM, Phone.
SpecificationLumia 640 Dual SIMPhone
Dimensions (HxWxD)
  • 141.3 Х 72.2 Х 8.8 mm
  • 158.5 Х 77.7 Х 8 mm
Weight
  • 145 g
  • 197 g
Technology
  • IPS LCD
  • IGZO IPS LCD
Screen size
  • 5" inch
  • 5.7" inch
Screen resolution
  • 720 x 1280 px
  • 1440 x 2560 px
Internal memory Recorded storage / RAM variants. Entries are alternatives, not a combined maximum. Ambiguous formats stay as recorded.
  • 8 GB
  • 1 GB RAM
  • 64 GB
  • 8 GB RAM
Memory card support
  • microSD
  • up to 256 GB (dedicated slot)
  • microSD
  • up to 512 GB (dedicated slot)
Battery Capacity is not battery life. No endurance test is implied.
  • 2500 mAh
  • Removable Li-Ion
  • 4000 mAh
  • Non-removable Li-Po
Operating system OS
  • Microsoft Windows Phone 8.1
  • upgradable to Microsoft Windows 10
  • Android 7.1.1 (Nougat)
  • upgradable to Android 8.1 (Oreo)
Chipset
  • Qualcomm MSM8926 Snapdragon 400 (28 nm)
  • Qualcomm MSM8998 Snapdragon 835 (10 nm)
NFC Unknown
  • Yes
Headphone jack
  • Yes
  • No
Display
Display — specifications for Lumia 640 Dual SIM, Phone.
SpecificationLumia 640 Dual SIMPhone
Touchscreen
  • capacitive touchscreen
  • capacitive touchscreen
Display colors
  • 16M
  • 16M
Screen area
  • 68.9 cm2
  • 89.6 cm2
Screen format
  • 16:9 (height:width)
  • 16:9 (height:width)
Screen to body ratio
  • 67.6%
  • 72.7%
PPI /points per inch/
  • 294 PPI
  • 515 PPI
Screen protection
  • Corning Gorilla Glass 3
  • Corning Gorilla Glass 3
Camera and Video
Camera and Video — specifications for Lumia 640 Dual SIM, Phone.
SpecificationLumia 640 Dual SIMPhone
Rear camera, main
  • 8 MP
  • Single
  • 12 MP
  • Dual
Camera specs
  • 8 MP
  • f/2.2
  • 28mm (wide)
  • 1/4''
  • AF
  • 12 MP
  • f/1.8
  • 25mm (wide)
  • 1/2.6''
  • 1.4µm
  • dual pixel PDAF -12 MP
  • f/2.6
  • 1/3.4''
  • 1.0µm
  • 2x optical zoom
  • PDAF
Functions
  • LED flash
  • Dual-LED dual-tone flash
  • panorama
  • HDR
Video
  • 720p
  • 1080p@30fps
Front camera, selfie
  • 1 MP
  • Single
  • 8 MP
  • Single
Specifications
  • 1 MP
  • 8 MP
  • f/2.0
Performance

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

Performance — specifications for Lumia 640 Dual SIM, Phone.
SpecificationLumia 640 Dual SIMPhone
Processor CPU
  • Quad-core 1.2 GHz Cortex-A7
  • Octa-core (4x2.35 GHz Kryo & 4x1.9 GHz Kryo)
Graphics processor GPU
  • Adreno 305
  • Adreno 540
Antutu 7 score * Unknown
  • 179321
GeekBench 4 Single Core * Unknown
  • 1913
GeekBench 4 Multi-Core * Unknown
  • 6604
GeekBench 4 RenderScript * Unknown
  • 7908
GeekBench 5 Single Core * Unknown
  • 380
GeekBench 5 Multi-Core * Unknown
  • 1685
General specs
General specs — specifications for Lumia 640 Dual SIM, Phone.
SpecificationLumia 640 Dual SIMPhone
Release date
  • 2015
  • March
  • 2017
  • November
Colors
  • Glossy cyan
  • Orange
  • White
  • Matte Black
  • Black
Historical recorded price Legacy catalogue value; date unknown. Not a current offer.
  • 170 EUR
  • 750 EUR
Battery life
  • Stand by time- Up to 840 h (2G) / Up to 840 h (3G) Talking time- Up to 27 h 30 min (2G) / Up to 20 h 30 min (3G)
Unknown
Body build Unknown
  • aluminum body
Communication and Connectivity
Communication and Connectivity — specifications for Lumia 640 Dual SIM, Phone.
SpecificationLumia 640 Dual SIMPhone
SIM card
  • Dual SIM (Micro-SIM
  • dual stand-by)
  • Nano-SIM
Network
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
  • Show all network frequencies: -2G - GSM 850 / 900 / 1800 / 1900 -3G - HSDPA 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 -4G - LTE band 1(2100)
  • 2(1900)
  • 3(1800)
  • 4(1700/2100)
  • 5(850)
  • 7(2600)
  • 8(900)
  • 12(700)
  • 17(700)
  • 19(800)
  • 20(800)
  • 25(1900)
  • 26(850)
  • 28(700)
  • 29(700)
  • 30(2300)
  • 38(2600)
  • 39(1900)
  • 40(2300)
  • 41(2500)
  • 66(1700/2100)
Speed
  • HSPA 42.2/5.76 Mbps
  • HSPA
  • LTE
GPRS
  • Yes
  • Yes
Edge
  • Yes
  • Yes
Wi-Fi
  • Wi-Fi 802.11 b/g/n
  • DLNA
  • hotspot
  • Wi-Fi 802.11 a/b/g/n/ac
  • dual-band
  • WiFi Direct
  • hotspot
GPS
  • Yes
  • with A-GPS
  • GLONASS
  • BDS
  • Yes
  • with A-GPS
USB
  • microUSB 2.0
  • Type-C 1.0 reversible connector
Bluetooth
  • 4.0
  • A2DP
  • 4.2
  • A2DP
  • LE
Music and Audio
Music and Audio — specifications for Lumia 640 Dual SIM, Phone.
SpecificationLumia 640 Dual SIMPhone
Radio
  • FM radio
  • No
Others
  • ClearBlack display
  • Wide Colour Gamut -120 Hz -380 nits
  • 24-bit/192kHz audio -Active noise cancellation with dedicated mic
Other features
Other features — specifications for Lumia 640 Dual SIM, Phone.
SpecificationLumia 640 Dual SIMPhone
Dop
  • Sensors Accelerometer
  • proximity
  • compass
  • Sensors Fingerprint (side-mounted)
  • accelerometer
  • gyro
  • proximity
  • compass - Fast battery charging 24W (Quick Charge 4+)