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blackberry key2
microsoft lumia 640 lte

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Brand
 blackberry microsoft
Model
 blackberry key2 microsoft lumia 640 lte
Announced
 2018 June. Released 2018 June 2015 March. Released 2015 April
Status
 discontinued discontinued
Device Body
 glass front ( gorilla glass 3 ) | plastic back | aluminum frame ( 7000 series )
Dimensions
 151.4 x 71.8 x 8.5 mm ( 5.96 x 2.83 x 0.33 in ) 141.3 x 72.2 x 8.8 mm ( 5.56 x 2.84 x 0.35 in )
Weight in gram
 168 145
SIM card
 · Nano-SIM Micro-SIM
Water Resistance
 No No
Display type
 IPS LCD IPS LCD
Display resolution
 1080 x 1620 pixels | 3 : 2 ratio ( ~434 pixel per inch density ) 720 x 1280 pixels | 16 : 9 ratio ( ~294 pixel per inch density )
Display size
 4.5 inches | 60.0 cm2 ( ~55.2% screen to body ratio ) 5.0 inches | 68.9 cm2 ( ~67.6% screen to body ratio )
Display Protection
 corning gorilla glass 3 corning gorilla glass 3
Operating System
 android 8.1 ( oreo ) microsoft windows phone 8.1 | upgradable to microsoft windows 10
CPU
 Octa-core ( 4x2.2 GHz kryo 260 gold & 4x1.8 GHz kryo 260 silver ) Quad-core 1.2 GHz cortex-a7
Chipset
 Qualcomm sdm660 snapdragon 660 ( 14 nm ) Qualcomm msm8926 snapdragon 400 ( 28 nm )
GPU
 adreno 512 adreno 305
Memory card
 microsdxc ( uses shared sim slot ) microsdxc ( dedicated slot )
Memory v1
 64gb 6gb RAM 8gb 1gb RAM
Memory v2
 128gb 6gb RAM
Primary camera
12 megapixel| lens aperture1.8 | 1/2.3" | 1.28µm | Dual Pixel phase detection autofocus
12 megapixel| lens aperture2.6 | 1/3.4" | 1.0µm | phase detection autofocus
8 megapixel| lens aperture2.2 | 28mm ( wide ) | 1/4.0" | Auto focus
Secondary camera
8 megapixel| lens aperture2.0 | 1/4.0" | 1.12µm
1 mega pixel
Loud speaker
 Yes Yes
Audio jack
 Yes Yes
WLAN
 Wi-Fi 802.11 a/b/g/n/ac | dual-band | Wi-Fi Direct Wi-Fi 802.11 b/g/n | dlna | hotspot
Bluetooth
 5.0 | a2dp | le | edr 4.0 | a2dp
GPS
NFC
 Yes Yes
Radio
 FM Radio FM Radio
USB
 USB Type-C 3.0 | otg microusb 2.0
Sensors
 fingerprint ( front-mounted ) | accelerometer | gyroscope | proximity | compass accelerometer | proximity | compass
Battery
 Li-lon 3500 mAh | Non-removable Li-lon 2500 mAh | removable
Battery Charge
 18w wired | qc3 | 50% in 36 min
Colors
 black, silver, red cyan color gradations, orange, white, black
Network technology
 gsm / hspa / lte gsm / hspa / lte
5G bands
Network speed
 hspa 42.2/5.76 mbps lte (3ca) cat11 600/75 mbps hspa 42.2/5.76 mbps lte cat4 150/50 mbps
GPRS
EDGE
Approx price
  • 420 GBP
  • 509 EUR
  • 4940 NOK
  • 5200 SEK
  • 31900 RUB
  • 510 USD
  • 2690 BRL
  • 740 AUD
  • 670000 KRW
  • 69000 JPY
  • 710 SGD
  • 2270 MYR
  • 1870 AED
  • 8600 ZAR
  • 100 GBP
  • 124 EUR
  • 1190 NOK
  • 1300 SEK
  • 7700 RUB
  • 130 USD
  • 650 BRL
  • 180 AUD
  • 160000 KRW
  • 17000 JPY
  • 170 SGD
  • 550 MYR
  • 450 AED
  • 2100 ZAR