Phone Comparison - Karbonn A12+ vs Microsoft Lumia 640 XL LTE Dual SIM vs InFocus M530

general General Info

Manufacturer Karbonn Microsoft InFocus
Announced October 2013 March 2015 June 2015
Status Available - October 2013 Available - April 2015 Available - June 2015
Price - Rs. 14,999 ($220.57) [Similarly Priced] Rs. 10,999 ($161.75) [Similarly Priced]
Colors White, Black Matte cyan, Orange, Black, Matte white, Glossy white Black, White
Form Factor Candybar Candybar Candybar
Dimension - 157.9 x 81.5 x 9 mm
(6.22 x 3.21 x 0.35 in)
157 x 77 x 9.1 mm
(6.18 x 3.03 x 0.36 in)
Weight - 171 g (6.03 oz) 176 g (6.21 oz)
2G Network GSM 900 / 1800 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 2100
4G Network - LTE LTE 1800 / 2600
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v4.2.2 (Jelly Bean) Microsoft Windows Phone 8.1 with Lumia Denim Android OS, v4.4.4 (KitKat)
Processor Dual-core 1.3 GHz, MTK 6572 Quad-core 1.2 GHz Cortex-A7, Qualcomm Snapdragon 400 Quad-core 2.0 GHz Cortex-A17 & quad-core 1.7 GHz Cortex-A7, MediaTek MT6595
GPU Mali-400MP Adreno 305 PowerVR H6200MP4
RAM 512 MB 1 GB 2 GB
Internal Memory 4 GB (1.27 GB for apps, 1.24 GB user available) 8 GB 16 GB
External Memory microSD, up to 32 GB microSD, up to 128 GB microSD, up to 32 GB

display Display

Type IPS LCD Capacitive Touchscreen, Wide Viewing Angle IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3, ClearBlack Display IPS LCD Capacitive Touchscreen, Corning Gorilla Glass 3
Colors 16M colors 16M colors 16M colors
Size 4.0 inches 5.7 inches 5.5 inches
Resolution 480 x 800 pixels (233 ppi) 720 x 1280 pixels (259 ppi) 720 x 1280 pixels (267 ppi)
Screen-to-Body Ratio - 68.88% 68.99%
Multi-Touch yes yes yes

multimedia Multimedia

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

camera Camera

Rear Camera 5 MP, 2592х1944 pixels 13 MP, 4128 x 3096 pixels 13 MP, 4128 x 3096 pixels
Flash LED flash LED Flash Dual-LED (Dual Tone)
Features Auto-focus, Geo-tagging, Face Detection, Panorama Carl Zeiss Optics, 1/3'' sensor size Auto focus, OIS, Sony IMX214 Exmor RS Sensor, Geo-tagging, Touch Focus, Face Detection, Image Stabilization, HDR, Panorama
Video Yes, 720p 1080p@30fps 1080p@30fps
Front Camera Yes, 2 MP [Similar] 5 MP, 1080p [Similar] 13 MP, Auto focus, LED Flash, Sony Exmor [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 21 Mbps; HSUPA, 5.76 Mbps HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps HSDPA, HSUPA
Bluetooth Yes, v2.0 A2DP, EDR v4.0, A2DP v4.0, A2DP
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, DLNA, hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct
USB Yes, microUSB v2.0 microUSB v2.0 microUSB v2.0 (MHL), USB On-the-go
GPS Yes, with A-GPS support Yes, with A-GPS, GLONASS, Beidou Yes, with A-GPS, GLONASS
Browser HTML HTML5 HTML5

memory User Memory

Internal 4 GB (1.27 GB for apps, 1.24 GB user available), 512 MB RAM 8 GB, 1 GB RAM 16 GB, 2 GB RAM
Expandable Storage microSD, up to 32 GB microSD, up to 128 GB microSD, up to 32 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 not supported

battery Battery

Type Li-Ion Battery Li-Ion Battery Removable Battery
Capacity 1400 mAh 3000 mAh 3100 mAh
Stand by - Up to 936 h (2G)
Up to 936 h (3G)
Up to 590 h (3G)
Talk Time - Up to 31 h 20 min (2G)
Up to 23 h 40 min (3G)
Up to 12 h (3G)