Phone Comparison - Samsung Galaxy Y Duos vs Nokia Lumia 1520 vs Karbonn A12+

general General Info

Manufacturer Samsung Nokia Karbonn
Announced December 2011 October 2013 October 2013
Status Available - February 2012 Available - November 2013 Available - October 2013
Colors Black Yellow, white, black, red White, Black
Form Factor Candybar Candybar Candybar
Dimension 109.8 x 60 x 12 mm
(4.32 x 2.36 x 0.47 in)
162.8 x 85.4 x 8.7 mm
(6.41 x 3.36 x 0.34 in)
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Weight 109 g (3.84 oz) 209 g (7.37 oz) -
2G Network GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 GSM 900 / 1800 - SIM 1 & SIM 2
3G Network HSDPA 900 / 2100 HSDPA 850 / 900 / 1900 / 2100 HSDPA 2100
4G Network - LTE 800 / 900 / 1800 / 2100 / 2600 -
Messaging SMS, MMS, EMail, IM SMS, MMS, Push Mail, EMail, IM SMS, MMS, EMail, IM

hardware Hardware and OS

OS Android OS, v2.3 (Gingerbread) Microsoft Windows Phone 8 Amber Android OS, v4.2.2 (Jelly Bean)
Processor Quad-core 2.2 GHz Krait 400, Qualcomm Snapdragon 800 Dual-core 1.3 GHz, MTK 6572
GPU Adreno 330 Mali-400MP
RAM 384 MB 2 GB 512 MB
Internal Memory 512 MB ROM 32 GB 4 GB (1.27 GB for apps, 1.24 GB user available)
External Memory microSD, up to 32GB, 2 GB included microSD, up to 64 GB microSD, up to 32 GB

display Display

Type TFT capacitive touchscreen IPS LCD capacitive touchscreen IPS LCD Capacitive Touchscreen, Wide Viewing Angle
Colors 256K colors 16M colors 16M colors
Size 3.14 inches 6.0 inches 4.0 inches
Resolution 240 x 320 pixels (127 ppi) 1080 x 1920 pixels (367 ppi) 480 x 800 pixels (233 ppi)
Screen-to-Body Ratio 46.63% 71.44% -
Multi-Touch yes yes yes

multimedia Multimedia

3.5mm Jack yes yes yes
Radio Stereo FM radio with RDS FM radio FM radio
Games Yes Yes + Downloadable Yes + Downloadable
Loud Speaker yes yes yes

camera Camera

Rear Camera 3.15 MP, 2048x1536 pixels 20 MP, Carl Zeiss optics 5 MP, 2592х1944 pixels
Flash No Dual-LED flash LED flash
Features Geo-tagging 1/2.5' Sensor Size, PureView Technology, Geo-tagging, Face Detection, Panorama Auto-focus, Geo-tagging, Face Detection, Panorama
Video Yes, QVGA@24fps Yes, 1080p@30fps, video light, stereo sound rec. Yes, 720p
Front Camera No [Similar] Yes, 1.2 MP, 720p [Similar] Yes, 2 MP [Similar]

connectivity Connectivity and Data Rate

GPRS Yes Yes Yes
Edge Yes Yes Yes
3G HSDPA, 7.2 Mbps HSDPA, 42.2 Mbps; HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL HSDPA, 21 Mbps; HSUPA, 5.76 Mbps
Bluetooth Yes, v3.0 with A2DP Yes, v4.0 with A2DP Yes, v2.0 A2DP, EDR
Wi-Fi Wi-Fi 802.11 b/g/n, Wi-Fi hotspot Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot Wi-Fi 802.11 b/g/n, Wi-Fi hotspot
USB Yes, microUSB v2.0 Yes, microUSB v2.0 Yes, microUSB v2.0
GPS Yes, with A-GPS support Yes, with A-GPS support and GLONASS Yes, with A-GPS support
Browser HTML, Adobe Flash HTML5 HTML

memory User Memory

Internal 512 MB ROM, 384 MB RAM 32 GB, 2 GB RAM 4 GB (1.27 GB for apps, 1.24 GB user available), 512 MB RAM
Expandable Storage microSD, up to 32GB, 2 GB included microSD, up to 64 GB microSD, up to 32 GB

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 Standard battery, Li-Ion Non-removable Li-Ion Battery (BV-4BW) Li-Ion Battery
Capacity 1300 mAh 3400 mAh 1400 mAh
Stand by Up to 768 h (2G)
Up to 768 h (3G)
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Talk Time Up to 27 h 40 min (2G)
Up to 25 h (3G)
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