Screen size
equal specsLumia 640 LTE5.0"
Lumia 640 LTE Dual SIM5.0"
Quick verdict
Lumia 640 LTE and Lumia 640 LTE Dual SIM are close on the measured specs.
Measured wins
Lumia 640 LTE
0
spec wins
Ties
17
equal specs
Lumia 640 LTE Dual SIM
0
spec wins
Screen size
equal specsTechnology
Lumia 640 LTE
GSM / HSPA / LTE
Lumia 640 LTE Dual SIM
GSM / HSPA / LTE
2G bands
Lumia 640 LTE
GSM 850 / 900 / 1800 / 1900
Lumia 640 LTE Dual SIM
GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands
Lumia 640 LTE
HSDPA 850 / 900 / 2100 , HSDPA 850 / 1700(AWS) / 1900 / 2100 - T-Mobile
Lumia 640 LTE Dual SIM
HSDPA 850 / 900 / 1700 / 1900 / 2100
4G bands
Lumia 640 LTE
Resolution
equal specsRefresh rate
Peak brightness
Pixel density
equal specsCPU speed
equal specsRAM
equal specsStorage
equal specsMain camera
equal specsFront camera
equal specsBattery
equal specsWired charging
Weight
equal specsThickness
equal specsIP rating
Wi‑Fi
Bluetooth
equal specsUSB
equal specs5G support
equal specsNFC
equal specs3.5mm jack
equal specsSD card
equal specsStereo speakers
1, 3, 7, 8, 20, 1, 2, 4, 5, 7, 12, 17 - T-Mobile
Lumia 640 LTE Dual SIM
1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 28, 38, 40
Speed
Lumia 640 LTE
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Lumia 640 LTE Dual SIM
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Announced
Lumia 640 LTE
2015, March. Released 2015, April
Lumia 640 LTE Dual SIM
2015, March. Released 2015, April
Status
Lumia 640 LTE
Discontinued
Lumia 640 LTE Dual SIM
Discontinued
Dimensions
Lumia 640 LTE
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
Lumia 640 LTE Dual SIM
141.3 x 72.2 x 8.8 mm (5.56 x 2.84 x 0.35 in)
Weight
Lumia 640 LTE
145 g (5.11 oz)
Lumia 640 LTE Dual SIM
145 g (5.11 oz)
SIM
Lumia 640 LTE
Micro-SIM
Lumia 640 LTE Dual SIM
Dual SIM (Micro-SIM, dual stand-by)
Type
Lumia 640 LTE
IPS LCD
Lumia 640 LTE Dual SIM
IPS LCD
Size
Lumia 640 LTE
5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio)
Lumia 640 LTE Dual SIM
5.0 inches, 68.9 cm2 (~67.6% screen-to-body ratio)
Resolution
Lumia 640 LTE
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Lumia 640 LTE Dual SIM
720 x 1280 pixels, 16:9 ratio (~294 ppi density)
Protection
Lumia 640 LTE
Corning Gorilla Glass 3
Lumia 640 LTE Dual SIM
Corning Gorilla Glass 3
Other
Lumia 640 LTE
ClearBlack display
Lumia 640 LTE Dual SIM
ClearBlack display
OS
Lumia 640 LTE
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Lumia 640 LTE Dual SIM
Microsoft Windows Phone 8.1, upgradable to Microsoft Windows 10
Chipset
Lumia 640 LTE
Qualcomm MSM8926 Snapdragon 400 (28 nm)
Lumia 640 LTE Dual SIM
Qualcomm MSM8926 Snapdragon 400 (28 nm)
CPU
Lumia 640 LTE
Quad-core 1.2 GHz Cortex-A7
Lumia 640 LTE Dual SIM
Quad-core 1.2 GHz Cortex-A7
GPU
Lumia 640 LTE
Adreno 305
Lumia 640 LTE Dual SIM
Adreno 305
Card slot
Lumia 640 LTE
microSDXC (dedicated slot)
Lumia 640 LTE Dual SIM
microSDXC (dedicated slot)
Internal
Lumia 640 LTE
8GB 1GB RAM
Lumia 640 LTE Dual SIM
8GB 1GB RAM
Other
Lumia 640 LTE
eMMC 4.5
Lumia 640 LTE Dual SIM
eMMC 4.5
Single
Lumia 640 LTE
8 MP, f/2.2, 28mm (wide), 1/4.0", AF
Lumia 640 LTE Dual SIM
8 MP, f/2.2, 28mm (wide), 1/4.0", AF
Features
Lumia 640 LTE
LED flash
Lumia 640 LTE Dual SIM
LED flash
Video
Lumia 640 LTE
1080p@30fps
Lumia 640 LTE Dual SIM
1080p@30fps
Single
Lumia 640 LTE
1 MP
Lumia 640 LTE Dual SIM
1 MP
Video
Lumia 640 LTE
720p
Lumia 640 LTE Dual SIM
720p
Loudspeaker
Lumia 640 LTE
Yes
Lumia 640 LTE Dual SIM
Yes
3.5mm jack
Lumia 640 LTE
Yes
Lumia 640 LTE Dual SIM
Yes
WLAN
Lumia 640 LTE
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Lumia 640 LTE Dual SIM
Wi-Fi 802.11 b/g/n, DLNA, hotspot
Bluetooth
Lumia 640 LTE
4.0, A2DP
Lumia 640 LTE Dual SIM
4.0, A2DP
Positioning
Lumia 640 LTE
GPS, GLONASS, BDS
Lumia 640 LTE Dual SIM
GPS, GLONASS, BDS
NFC
Lumia 640 LTE
Yes
Lumia 640 LTE Dual SIM
Yes
Radio
Lumia 640 LTE
FM radio
Lumia 640 LTE Dual SIM
FM radio
USB
Lumia 640 LTE
microUSB 2.0
Lumia 640 LTE Dual SIM
microUSB 2.0
Sensors
Lumia 640 LTE
Accelerometer, proximity, compass
Lumia 640 LTE Dual SIM
Accelerometer, proximity, compass
Type
Lumia 640 LTE
Li-Ion 2500 mAh, removable
Lumia 640 LTE Dual SIM
Li-Ion 2500 mAh, removable
Stand-by
Lumia 640 LTE
Up to 864 h (2G) / Up to 864 h (3G)
Lumia 640 LTE Dual SIM
Up to 864 h (2G) / Up to 864 h (3G)
Talk time
Lumia 640 LTE
Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G)
Lumia 640 LTE Dual SIM
Up to 26 h 30 min (2G) / Up to 17 h 30 min (3G)
Colors
Lumia 640 LTE
Glossy cyan, Orange, White, Matte black
Lumia 640 LTE Dual SIM
Glossy cyan, Orange, White, Matte black
Price
Lumia 640 LTE
About 120 EUR
Lumia 640 LTE Dual SIM
About 150 EUR