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Microsoft Lumia 640 Dual SIM#6106

Released: 2015

Microsoft Lumia 640 Dual SIM

Overall Score

25.2

Category Breakdown

Overall(#6106)25.2
Performance(#6168)43.6
Camera(#6218)19.1
Display(#4147)56.5
Battery(#5422)21.8
Build(#4361)0.2
Connectivity(#5910)37.0
Audio(#1963)8.9

Comparisons Featuring Microsoft Lumia 640 Dual SIM

Honor 2|Acer Liquid Zest|Alcatel Go Play|Alcatel Pop 2 5 Premium|Wiko Rainbow Jam|Asus Zenfone Go T500|Lava Z10|Blu Grand Max|Lava Pixel V1|Asus Zenfone Go Zb551kl|Micromax A108 Canvas L|Htc A12|Samsung Galaxy Grand 3

Short Review

  • The Microsoft Lumia 640 Dual SIM features a compact design with dimensions of 141.3 x 72.2 x 8.8 mm and a weight of 145 grams, available in glossy cyan, orange, white, and matte black.
  • It has a 5.0-inch IPS LCD display with a resolution of 720 x 1280 pixels, providing decent clarity at approximately 294 ppi.
  • Powered by a Qualcomm Snapdragon 400 chipset and a quad-core 1.2 GHz Cortex-A7 CPU, the performance is adequate for basic tasks, supported by 1GB of RAM and 8GB of internal storage.
  • The rear camera is an 8 MP unit with f/2.2 aperture, capable of recording 1080p video at 30fps, while the front camera is a 1 MP sensor.
  • The battery capacity is 2500 mAh, which provides reasonable longevity but lacks fast or wireless charging options.
  • Running on Microsoft Windows Phone 8.1, it can be upgraded to Windows 10, offering a familiar interface for users.
  • Connectivity options include Wi-Fi 802.11 b/g/n and Bluetooth 4.0, but it does not support 5G or NFC.
  • The device does not feature stereo speakers but includes a standard headphone jack.
  • Overall, the Lumia 640 Dual SIM is a straightforward smartphone with essential features for everyday use.

Specifications

General

Release Date2015
Announced2015
DescriptionN/A

Display

Size5"
TypeIPS LCD
Resolution720 x 1280 pixels, 16:9 ratio (~294 ppi density)
PPI720
Refresh Rate60Hz
HDR Support✗
ProtectionCorning Gorilla Glass 3

Performance

ChipsetQualcomm MSM8926 Snapdragon 400 (28 nm)
CPUQuad-core 1.2 GHz Cortex-A7
GPUAdreno 305
Memory8GB 1GB RAM
Expandable Storage✗
Card SlotmicroSDXC (dedicated slot)

Camera

Main Camera8 MP, f/2.2, 28mm (wide), 1/4.0", AF
Main Camera FeaturesLED flash
Front Camera1 MP
Front Camera FeaturesN/A
Video Recording1080p@30fps
Selfie Video720p
Optical Stabilization✗
Night Mode✗
Raw Photo Support✗

Battery

Capacity2500 mAh
Battery DetailsLi-Ion 2500 mAh, removable
Charging DetailsN/A
Fast Charging✗
Wireless Charging✗

Build & Safety

Dimensions141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
Weight145 g
MaterialsN/A
ColorsGlossy cyan, Orange, White, Matte black
Foldable✗
SARN/A

Connectivity

SIMDual SIM (Micro-SIM, dual stand-by)
NetworkGSM / HSPA
Network SpeedHSPA 42.2/5.76 Mbps
5G✗
4G✗
WiFiWi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth4.0, A2DP
NFC✗
USBmicroUSB 2.0
IR Blaster✗
Headphone Jack✓
Radio✗
PositioningGPS, GLONASS, BDS

Audio

Stereo Speakers✗
LoudspeakerYes
Audio JackYes

Software & Security

Operating SystemMicrosoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Fingerprint✗
Face Unlock✗
SensorsAccelerometer, proximity, compass