Phone Comparison - Asus Zenfone 6 vs Asus Zenfone 2 ZE551ML vs Microsoft Lumia 640 XL LTE Dual SIM

general General Info

Manufacturer Asus Asus Microsoft
Announced January 2014 January 2015 March 2015
Status Available - June 2014 Available - March 2015 Available - April 2015
Price - Rs. 14,999 ($220.57) [Similarly Priced] Rs. 14,999 ($220.57) [Similarly Priced]
Colors Black, White, Red, Gold Osmium Black, Sheer Gold, Glacier Gray, Glamor Red, Ceramic Whit Matte cyan, Orange, Black, Matte white, Glossy white
Form Factor Candybar Candybar Candybar
Dimension 166.9 x 84.3 x 5.5-9.9 mm
(6.57 x 3.32 x 0.22-0.39 in)
152.5 x 77.2 x 10.9 mm
(6 x 3.04 x 0.43 in)
157.9 x 81.5 x 9 mm
(6.22 x 3.21 x 0.35 in)
Weight 196 g (6.91 oz) 170 g (6 oz) 171 g (6.03 oz)
2G Network GSM 850 / 900 / 1800 / 1900 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G Network HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1900 / 2100
4G Network - LTE 700 / 800 / 850 / 900 / 1700 / 1800 / 1900 / 2100 / 2600
(Bands 1, 2, 3, 4, 5, 7, 8, 9, 17, 18, 19, 20, 28, 29)
LTE
Messaging SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, Push Mail, EMail, IM

hardware Hardware and OS

OS Android OS, v4.3 (Jelly Bean), upgradable to v4.4.2 (KitKat) Android OS, v5.0 (Lollipop) Microsoft Windows Phone 8.1 with Lumia Denim
Processor Dual-core 2 GHz, Intel Atom Z2580 Quad-core 2.3 GHz
Quad-core 1.8 GHz, Intel Atom Z3580
Intel Atom Z3560
Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400
GPU PowerVR SGX544MP2 PowerVR G6430 Adreno 305
RAM 1/2 GB 2/4 GB 1 GB
Internal Memory 8/16/32 GB 16/32/64 GB 8 GB
External Memory microSD, up to 64 GB microSD, up to 64 GB microSD, up to 128 GB

display Display

Type IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3 IPS Capacitive Touchscreen, Corning Gorilla Glass 3 IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display
Colors 16M colors 16M colors 16M colors
Size 6.0 inches 5.5 inches 5.7 inches
Resolution 720 x 1280 pixels (245 ppi) 1080 x 1920 pixels (401 ppi) 720 x 1280 pixels (259 ppi)
Screen-to-Body Ratio 70.40% 70.67% 68.88%
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio No Yes FM radio
Games Yes + Downloadable Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels
Flash LED flash dual-LED (dual tone) LED Flash
Features Auto focus, Geo-tagging, Touch Focus, Face Detection Auto focus, Geo-tagging, Touch Focus, Face Detection, Panorama, HDR Carl Zeiss Optics, 1/3'' sensor size
Video Yes 1080p@30fps 1080p@30fps
Front Camera Yes, 2 MP [Similar] 5 MP [Similar] 5 MP, 1080p [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
Bluetooth Yes, v4.0 with A2DP, EDR v4.0, A2DP, EDR v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi Direct, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, Wi-Fi Direct, hotspot Wi-Fi 802.11 b/g/n, DLNA, hotspot
USB Yes, microUSB v2.0 microUSB v2.0, USB Host microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS Yes, with A-GPS, GLONASS, Beidou
Browser HTML HTML5 HTML5

memory User Memory

Internal 8/16/32 GB, 1/2 GB RAM 16/32/64 GB, 2/4 GB RAM 8 GB, 1 GB RAM
Expandable Storage microSD, up to 64 GB microSD, up to 64 GB microSD, up to 128 GB
USB OTG - Supported -

Apps Sensors

Fingerprint fingerprint not supported fingerprint not supported fingerprint not supported
Proximity Sensor proximity sensor present proximity sensor present proximity sensor present
Accelerometer Sensor accelerometer sensor present accelerometer sensor present accelerometer sensor present
NFC NFC not supported NFC supported NFC supported

battery Battery

Type Non-removable Li-Po Battery Non-removable Li-Po Battery Li-Ion Battery
Capacity 3300 mAh 3000 mAh 3000 mAh
Stand by Up to 398 h (3G) - Up to 936 h (2G)
Up to 936 h (3G)
Talk Time Up to 28 h (3G) - Up to 31 h 20 min (2G)
Up to 23 h 40 min (3G)