Microsoft Lumia 640 LTE vs Microsoft Lumia 950

Phones Images

PHONES
Phone Names	Microsoft Lumia 640 LTE	Microsoft Lumia 950

Network
2G bands	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G bands	HSDPA 850 / 900 / 2100	HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
4G bands	1, 3, 7, 8, 20	1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40 - EMEA
Speed	HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps	HSPA 42.2/5.76 Mbps, LTE Cat6 300/50 Mbps
Technology	GSM / HSPA / LTE	GSM / HSPA / LTE
	1, 2, 4, 5, 7, 12, 17 - T-Mobile	1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40, 41 - USA

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

Body
Dimensions	141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)	145 x 73.2 x 8.2 mm (5.71 x 2.88 x 0.32 in)
SIM	Micro-SIM	Nano-SIM
Weight	145 g (5.11 oz)	150 g (5.29 oz)

Display
Protection	Corning Gorilla Glass 3	Corning Gorilla Glass 3
Resolution	720 x 1280 pixels, 16:9 ratio (~294 ppi density)	1440 x 2560 pixels, 16:9 ratio (~564 ppi density)
Size	5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio)	5.2 inches, 74.8 cm2 (~70.5% screen-to-body ratio)
Type	IPS LCD	AMOLED
	ClearBlack display	ClearBlack display

Platform
CPU	Quad-core 1.2 GHz Cortex-A7	Hexa-core (4x1.4 GHz Cortex-A53 & 2x1.8 GHz Cortex-A57)
Chipset	Qualcomm MSM8926 Snapdragon 400 (28 nm)	Qualcomm MSM8992 Snapdragon 808 (20 nm)
GPU	Adreno 305	Adreno 418
OS	Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10	Microsoft Windows 10

Memory
Card slot	microSDXC (dedicated slot)	microSDXC (dedicated slot)
Internal	8GB 1GB RAM	32GB 3GB RAM
	eMMC 4.5	eMMC 5.0

Main Camera
Features	LED flash	Zeiss optics, triple-LED RGB flash, panorama, HDR
Single	8 MP, f/2.2, 28mm (wide), 1/4.0", AF	20 MP, f/1.9, 26mm (wide), 1/2.4", 1.12µm, AF, OIS
Video	1080p@30fps	4K@30fps, stereo sound rec., 1080p@30/60fps (after SW update)

Selfie camera
Single	1 MP	5 MP, f/2.4
Video	720p	1080p@30fps

Sound
3.5mm jack	Yes	Yes
35mm jack	Yes	Yes
Loudspeaker	Yes	Yes

Comms
Bluetooth	4.0, A2DP	4.1, A2DP
NFC	Yes	Yes
Positioning	GPS, GLONASS, BDS	GPS, GLONASS, BDS
Radio	FM radio	FM radio
USB	microUSB 2.0	USB Type-C 3.1
WLAN	Wi-Fi 802.11 b/g/n, DLNA, hotspot	Wi-Fi 802.11 a/b/g/n/ac, dual-band, hotspot

Features
Sensors	Accelerometer, proximity, compass	Iris scanner, accelerometer, gyro, proximity, compass, barometer, sensor core
	-	Microsoft Continuum support

Battery
Charging	-	18W wired Wireless (Qi) (market dependent)
Music play	-	Up to 67 h
Stand-by	Up to 864 h (2G) / Up to 864 h (3G)	Up to 288 h (2G) / Up to 288 h (3G)
Talk time	Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G)	Up to 23 h (2G) / Up to 18 h (3G)
Type	Li-Ion 2500 mAh, removable	Li-Ion 3000 mAh, removable

Misc
Colors	Glossy cyan, Orange, White, Matte black	Black, White
Price	About 120 EUR	About 280 EUR

Tests
Audio quality	Noise -93.1dB / Crosstalk -93.2dB	Noise -91.3dB / Crosstalk -91.6dB
Battery life	Endurance rating 76h	Endurance rating 48h
Camera	Photo / Video	Photo / Video
Display	Contrast ratio: 1034 (nominal), 2.563 (sunlight)	Contrast ratio: Infinite (nominal), 3512 (sunlight)
Loudspeaker	Voice 70dB / Noise 65dB / Ring 75dB	Voice 71dB / Noise 73dB / Ring 77dB
Performance	-	Basemark OS II 2.0: 1281Basemark X: 26330

OUR TESTS
Audio quality	Noise -93.1dB / Crosstalk -93.2dB	Noise -91.3dB / Crosstalk -91.6dB
Battery (old)	Endurance rating 76h	Endurance rating 48h
Camera	Photo / Video	Photo / Video
Display	Contrast ratio: 1034 (nominal), 2.563 (sunlight)	Contrast ratio: Infinite (nominal), 3512 (sunlight)
Loudspeaker	Voice 70dB / Noise 65dB / Ring 75dB	Voice 71dB / Noise 73dB / Ring 77dB
Performance	-	Basemark OS II 2.0: 1281Basemark X: 26330