Compare Devices
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Brand | microsoft | blu | xiaomi |
Model | microsoft lumia 640 xl lte dual sim | blu grand 5.5 hd ii | xiaomi redmi y1 (note 5a) |
Announced | 2015 March. Released 2015 April | 2017 November | 2017 November |
Status | discontinued | Available. Released 2017 November | Available. Released 2017 November |
Device Body | |||
Dimensions | 157.9 x 81.5 x 9 mm ( 6.22 x 3.21 x 0.35 in ) | 155.2 x 78.2 x 8.4 mm ( 6.11 x 3.08 x 0.33 in ) | 153 x 76.2 x 7.7 mm ( 6.02 x 3.00 x 0.30 in ) |
Weight in gram | 171 | 170 | 153 |
SIM card | dual SIM ( Micro-SIM | dual stand-by ) | dual SIM ( Micro-SIM | dual stand-by ) | dual SIM ( Nano-SIM | dual stand-by ) |
Water Resistance | No | ||
Display type | IPS LCD | IPS LCD capacitive touchscreen | 16millioncolors | IPS LCD |
Display resolution | 720 x 1280 pixels | 16 : 9 ratio ( ~259 pixel per inch density ) | 720 x 1280 pixels | 16 : 9 ratio ( ~267 pixel per inch density ) | 720 x 1280 pixels | 16 : 9 ratio ( ~267 pixel per inch density ) |
Display size | 5.7 inches | 88.9 cm2 ( ~69.1% screen to body ratio ) | 5.5 inches | 83.4 cm2 ( ~68.7% screen to body ratio ) | 5.5 inches | 83.4 cm2 ( ~71.5% screen to body ratio ) |
Display Protection | corning gorilla glass 3 | ||
Operating System | microsoft windows phone 8.1 | upgradable to microsoft windows 10 | android 7.0 ( nougat ) | android 7.1.2 ( nougat ) | miui 11 |
CPU | Quad-core 1.2 GHz cortex-a7 | Quad-core 1.3 GHz cortex-a7 | Octa-core 1.4 GHz cortex-a53 |
Chipset | Qualcomm msm8226 snapdragon 400 ( 28 nm ) | mediatek mt6580 ( 28 nm ) | Qualcomm msm8940 snapdragon 435 ( 28 nm ) |
GPU | adreno 305 | mali-400mp2 | adreno 505 |
Memory card | microsdxc ( dedicated slot ) | microsdxc | microsdxc ( dedicated slot ) |
Memory v1 | 8gb 1gb RAM | 16gb 1gb RAM | 32gb 3gb RAM |
Memory v2 | 64gb 4gb RAM | ||
Primary camera | 13 megapixel| lens aperture2.0 | 28mm ( wide ) | 1/3.0" | Auto focus | 13 megapixel| 1/4.0" | 1.12µm | 13 megapixel| lens aperture2.2 | 1/3.1" | 1.12µm | phase detection autofocus |
Secondary camera | 5 mega pixel | 8 mega pixel | 16 megapixel| lens aperture2.0 | 26mm ( wide ) | 1/3.06" | 1.0µm |
Loud speaker | Yes | Yes | Yes |
Audio jack | Yes | Yes | Yes |
WLAN | Wi-Fi 802.11 b/g/n | dlna | hotspot | Wi-Fi 802.11 b/g/n | Wi-Fi Direct | hotspot | Wi-Fi 802.11 b/g/n | Wi-Fi Direct | hotspot |
Bluetooth | 4.0 | a2dp | 4.0 | a2dp | 4.2 | a2dp | le |
GPS | Yes with a-gps | Yes with a-gps glonass bds | |
NFC | Yes | No | |
Radio | FM Radio | FM Radio | FM Radio |
USB | microusb 2.0 | microusb 2.0 | microusb 2.0 |
Sensors | accelerometer | proximity | compass | sensor core | accelerometer | proximity | fingerprint ( rear-mounted ) | accelerometer | gyroscope | proximity | compass |
Battery | Li-lon 3000 mAh | removable | removable li-po 2800 mAh battery | Li-lon 3080 mAh | Non-removable |
Battery Charge | |||
Colors | cyan, orange, black, white, white color gradations | black, gold, gold color gradations | gold, grey color gradations, silver, gold color gradations |
Network technology | gsm / hspa / lte | gsm / hspa | gsm / hspa / lte |
5G bands | |||
Network speed | hspa 42.2/5.76 mbps lte cat4 150/50 mbps | hspa 21.1/5.76 mbps | hspa 42.2/5.76 mbps lte |
GPRS | |||
EDGE | |||
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