Microsoft Lumia 640 Dual SIM

AI Portrait | AI LinkBoost | Released 2024, January 24

Storage

256GB/512GB/1TB

Android 14, UI 6.1

Titanium Frame

45w | 15w

45w | 15w

Snapragon

45w | 15w

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
	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 (old)	Endurance rating 76h