#1

What makes Samsung Galaxy Note 2 16GB better Choice

Standby Time 520 hrs 675 hrs 980 hrs
Samsung Galaxy Note 2 has 88.46% more standby time.
Internal Storage 8 GB 16 GB 16 GB
Samsung Galaxy Mega 6.3,Samsung Galaxy Note 2 has 100.00% more internal memory.
RAM 1 GB 1.5 GB 2 GB
Samsung Galaxy Note 2 has 100.00% more RAM.
4G No Yes, LTE, Cat3, 50 Mbps UL, 100 Mbps DL Yes
Samsung Galaxy Mega 6.3,Samsung Galaxy Note 2 supports 4G, whereas Xolo Q2000 doesn't.
FM Radio Yes No Yes
Xolo Q2000,Samsung Galaxy Note 2 has radio, whereas Samsung Galaxy Mega 6.3 doesn't.
Display Clarity 267 ppi 233 ppi 267 ppi
Xolo Q2000,Samsung Galaxy Note 2 has 14.59% higher screen resolution than Samsung Galaxy Mega 6.3.
User Interface Modified Android Samsung Touchwiz Samsung Touchwiz
Samsung Galaxy Mega 6.3,Samsung Galaxy Note 2 runs on Samsung Touchwiz Which has faster update cycle, because of which it receives updates faster and more consistently than Xolo Q2000 running on Modified Android.
#2

What makes Samsung Galaxy Mega 6.3 better Choice

Screen Size 5.5 inches (Screen to Body Ratio: 68.71%) 6.3 inches (Screen to Body Ratio: 74.19%) 5.5 inches (Screen to Body Ratio: 68.56%)
Samsung Galaxy Mega 6.3 has 14.55% bigger screen size.
Internal Storage 8 GB 16 GB 16 GB
Samsung Galaxy Mega 6.3,Samsung Galaxy Note 2 has 100.00% more internal memory.
4G No Yes, LTE, Cat3, 50 Mbps UL, 100 Mbps DL Yes
Samsung Galaxy Mega 6.3,Samsung Galaxy Note 2 supports 4G, whereas Xolo Q2000 doesn't.
User Interface Modified Android Samsung Touchwiz Samsung Touchwiz
Samsung Galaxy Mega 6.3,Samsung Galaxy Note 2 runs on Samsung Touchwiz Which has faster update cycle, because of which it receives updates faster and more consistently than Xolo Q2000 running on Modified Android.
Processor Speed 1200 1700 1600
Samsung Galaxy Mega 6.3 has 41.67% faster processor speed.
#3

What makes Lava Xolo Q2000 better Choice

Primary Camera Resolution 13 MP 8 MP 8 MP
Xolo Q2000 has 62.50% higher primary camera resolution.
Secondary Camera Resolution 2 MP 1.9 MP 1.9 MP
Xolo Q2000 has 5.26% higher front camera resolution.
FM Radio Yes No Yes
Xolo Q2000,Samsung Galaxy Note 2 has radio, whereas Samsung Galaxy Mega 6.3 doesn't.
Sim Count Dual Sim Single Sim Single Sim
Xolo Q2000 is a Dual Sim phone, whereas Samsung Galaxy Mega 6.3,Samsung Galaxy Note 2 is a Single Sim phone.
Display Clarity 267 ppi 233 ppi 267 ppi
Xolo Q2000,Samsung Galaxy Note 2 has 14.59% higher screen resolution than Samsung Galaxy Mega 6.3.

Feature Comparison of Xolo Q2000 Vs Samsung Galaxy Mega 6.3 Vs Samsung Galaxy Note 2

General
Sim Support Dual Sim, Mini-SIM, GSM + GSM Single Sim, Micro-SIM, GSM Single Sim, Micro-SIM, GSM
Phone Dimensions 156 x 77.8 x 9.8 mm 167.6 x 88 x 8 mm 151.1 x 80.5 x 9.4 mm
Phone Weight 180 grams 199 grams 183 grams
Keypad Touch Touch Touch
SAR Value 0.23 W/kg (head) 0.35 W/kg (body) 1.09 W/kg (head) 1.09 W/kg (body) 0.23 W/kg (head) 0.95 W/kg (body)
Display
Screen Size 5.5 inches (Screen to Body Ratio: 68.71%) 6.3 inches (Screen to Body Ratio: 74.19%) 5.5 inches (Screen to Body Ratio: 68.56%)
Screen Resolution 720 x 1280 Pixels, 267 ppi 720 x 1280 Pixels, 233 ppi 720 x 1280 Pixels, 267 ppi
Screen Type IPS LCD, With 16 M Colors TFT, With 16 M Colors SUPER AMOLED, With 16 M Colors
Touch Type Capacitive With Multitouch up to 5 fingers Capacitive With Multitouch up to 5 fingers Capacitive With Multitouch
Photo & Video
Camera Yes, 13 Megapixel Yes, 8 Megapixel Yes, 8 Megapixel
Flash Yes, Single LED Flash Yes, Single LED Flash Yes, Single LED Flash
Front Camera Yes, 2 Megapixel Yes, 1.9 Megapixel Yes, 1.9 Megapixel
Camera Features Image Stabilization, Scene detection & tuning, High Dynamic Range (HDR), Low Light enhancement, Face recognition( For focussing as well as in Gallery), Vertical & Horizontal Panorama capture, Auto focus Autofocus, Geo-Tagging, Touch Focus, Face/Smile Detection, HDR, Panorama Simultaneous HD video and image recording, geo-tagging, touch focus, face and smile detection, image stabilization
Video Recording Yes, 1080 x 1920 Pixels at 30 fps Yes, 1080 x 1920 Pixels at 30 fps Yes, 1080 x 1920 Pixels at 30 fps
Front Flash No No
Technical
Operating System Android 4.2 - Jelly Bean Android 4.2.2 - Jelly Bean Android 4.1.1 - Jelly Bean
Processor 1.2 GHz , MediaTek MT6589 Quad Core 1.7 GHz , Qualcomm Snapdragon 400 8030AB Dual Core 1.6 GHz , Samsung Exynos 4 4412 Prime Quad-Core
RAM 1 GB 1.5 GB 2 GB
GPU (Graphics) PowerVR SGX544, Clock speed: 357 MHz Adreno 305 Mali-400MP4
User Interface Modified Android Samsung Touchwiz Samsung Touchwiz
Battery
Battery 2600 mAh, Li-po 3200 mAh, Li-ion 3100 mAh, Li-ion
Battery Standby Up to 520 hrs (2G) / Up to 577 hrs (3G) Up to 675 hrs Up to 980 hrs (2G) / Up to 890 hrs (3G)
Battery Talk Time Up to 17 hrs (2G) / Up to 12 hrs (3G) Up to 7 hrs Up to 35 hrs (2G) / Up to 16 hrs (3G)
Connectivity
GPRS Yes Yes Yes
EDGE Yes Yes Yes
3G Yes, HSDPA, 42.2 Mbps, HSUPA, 11.5 Mbps Yes, HSDPA, 21 Mbps; HSUPA, 5.76 Mbps Yes, HSDPA, 21 Mbps (N7100), 42 Mbps (N7105); HSUPA, 5.76 Mbps; LTE Cat3 (N7105 only), 50 Mbps UL, 100 Mbps DL
4G No Yes, LTE, Cat3, 50 Mbps UL, 100 Mbps DL Yes
Wi-Fi Yes, with Tethering Yes, with Tethering Yes, with Tethering
USB Connectivity Yes, microUSB v2.0, USB On-the-go Yes, microUSB v2.0 (MHL TV-out), USB Host Yes, microUSB v2.0 (MHL) USB Host
GPS Yes, with A-GPS support Yes, with A-GPS support and GLONASS Yes, with A-GPS support and GLONASS
Bluetooth Yes, v2.0 Yes, v4.0 Yes, v4.0
Support NFC Yes Yes
External Display Connectivity Wifi Direct, DLNA Wifi Direct, DLNA
WiMax No
Multimedia
E-mail Yes, with Push E-mail Yes, with Push E-mail Yes, with Push E-mail
Document Reader Yes Yes Yes
FM Radio Yes No Yes
Alert Types Vibration, MP3, WAV ringtones Vibration; MP3, WAV ringtones Vibration, MP3, WAV
PDF Reader Yes Yes Yes
Memory
Phonebook Memory Practically Unlimited Contacts Practically unlimited contacts Practically unlimited contacts
Internal Storage 8 GB 16 GB 16 GB
Expandable Memory microSD, upto 32 GB microSD, upto 64 GB microSD, upto 64 GB
Other Features
Sensors Accelerometer, Proximity Accelerometer, Gyro, Proximity, Compass Accelerometer, Gyro, Proximity, Barometer, Compass
Additional Features Voice memo,Android Video Player SNS integration,Story Album, S TranslatorOrganizer,Image/video editorDocument viewerShare Music, Share Picture, Share Document, Play GamesGoogle Search, Maps, Gmail,YouTube, Calendar, Google Talk, PicasaVoice memo/dial/commandsPredictive text input
Quick Charging No No