Microsoft Lumia 640 Dual SIM

Released 2015, April
145g, 8.8mm thickness
Microsoft Windows Phone 8.1
8GB storage, microSDXC
N/A 1,769,971 hits
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5.0"
720x1280 pixels
8MP
1080p
1GB RAM
Snapdragon 400
2500mAh
Li-Ion

Network	Technology	GSM / HSPA
	2G bands	GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
	3G bands	HSDPA 850 / 900 / 1900 / 2100
	Speed	HSPA 42.2/5.76 Mbps

Launch	Announced	2015, March. Released 2015, April
Launch	Status	Discontinued

Body	Dimensions	141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
	Weight	145 g (5.11 oz)
	SIM	Dual SIM (Micro-SIM, dual stand-by)

Display	Type	IPS LCD
	Size	5.0 inches, 68.9 cm² (~67.6% screen-to-body ratio)
	Resolution	720 x 1280 pixels, 16:9 ratio (~294 ppi density)
	Protection	Corning Gorilla Glass 3
		ClearBlack display

Platform	OS	Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
	Chipset	Qualcomm MSM8926 Snapdragon 400 (28 nm)
	CPU	Quad-core 1.2 GHz Cortex-A7
	GPU	Adreno 305

Memory	Card slot	microSDXC (dedicated slot)
	Internal	8GB 1GB RAM
		eMMC 4.5

Main Camera	Single	8 MP, f/2.2, 28mm (wide), 1/4.0", AF
	Features	LED flash
	Video	1080p@30fps

Selfie camera	Single	1 MP
	Video	720p

Sound	Loudspeaker	Yes
	3.5mm jack	Yes

Comms	WLAN	Wi-Fi 802.11 b/g/n, DLNA, hotspot
	Bluetooth	4.0, A2DP
	Positioning	GPS, GLONASS, BDS
	NFC	No
	Radio	FM radio
	USB	microUSB 2.0

Features	Sensors	Accelerometer, proximity, compass

Battery	Type	Li-Ion 2500 mAh, removable
	Stand-by	Up to 840 h (2G) / Up to 840 h (3G)
	Talk time	Up to 27 h 30 min (2G) / Up to 20 h 30 min (3G)

Misc	Colors	Glossy cyan, Orange, White, Matte black
	Price	About 170 EUR

Tests	Display	Contrast ratio: 1034 (nominal), 2.563 (sunlight)
	Loudspeaker	Voice 70dB / Noise 65dB / Ring 75dB
	Audio quality	Noise -93.1dB / Crosstalk -93.2dB
	Battery life	Endurance rating 76h

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Microsoft Lumia 640 Dual SIM - user opinions and reviews

Anonymous
dNr
11 May 2022

On my When you put the cover, the aftermarket in general, it holds the sound keys, and the phone don't start. Put you cover gently, or lime little, the inside off the bottom. I hope the fix the problem.

Anonymous
PEW
26 Apr 2021

I have the same issue

Anonymous
S4H
01 Mar 2021

From September 2015 till now I still use this phone. Battery still last whole day at normal usage. Battery health is 100% (according to battery X app). Display is like new (Gorilla glass 3). Some apps like whats Up, messenger do not work anymore. Fac...