Samsung I9100 Galaxy S II vs Samsung Galaxy Note II N7100 vs Samsung Galaxy A3

General Info

Manufacturer
Samsung	Samsung	Samsung
Announced
February 2011	August 2012	October 2014
Status
Available - April 2011	Available - September 2012	Available - November 2014
Price
-	-	Rs. 14,265 ($209.78) [Similarly Priced]
Colors
Black, White, Pink	Titanium Gray, Marble White	Pearl White, Midnight Black, Platinum Silver, Soft Pink, Light B
Form Factor
Candybar	Candybar	Candybar
Dimension
125.3 x 66.1 x 8.5 mm (4.93 x 2.6 x 0.33 in)	151.1 x 80.5 x 9.4 mm (5.95 x 3.17 x 0.37 in)	130.1 x 65.5 x 6.9 mm ( 5.12 x 2.58 x 0.27 in)
Weight
116 g (4.09 oz)	180 g (6.35 oz)	110.3 g (3.88.0.11 oz)
2G Network
GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G Network
HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 1900 / 2100
4G Network
-	LTE 700 MHz Class 17 / 2100	LTE
Messaging
SMS, MMS, IM	SMS, MMS, EMail, IM	SMS, MMS, Push Mail, EMail, IM

OS
Android OS, v2.3 (Gingerbread), planned upgrade to v4.0	Android OS, v4.1 (Jelly Bean)	Android OS, v4.4.2 (KitKat)
Processor
Dual-core 1.2GHz ARM Cortex-A9 processor, Exynos chipset	Quad-core 1.6 GHz Cortex-A9, Exynos 4412 Quad	Quad-core 1.2 GHz,
GPU
Mali-400MP	Mali-400MP	-
RAM
1 GB	2 GB	1 GB
Internal Memory
16 GB/32 GB storage	16/32/64 GB storage	16 GB
External Memory
microSD, up to 32GB, 8 GB included	microSD, up to 32 GB	microSD, up to 64 GB

Type
Super AMOLED Plus capacitive touchscreen	Super AMOLED capacitive touchscreen	Super AMOLED Capacitive Touchscreen
Colors
16M colors	16M colors	16M colors
Size
4.3 inches	5.55 inches	4.5 inches
Resolution
480 x 800 pixels (217 ppi)	720 x 1280 pixels (265 ppi)	540 x 960 pixels (245 ppi)
Screen-to-Body Ratio
63.52%	69.61%	65.39%
Multi-Touch

Rear Camera
8 MP, 3264x2448 pixels	8 MP, 3264x2448 pixels	8 MP, 3264x2448 pixels
Flash
LED flash	LED flash	LED flash
Features
Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization	Auto focus, Geo-tagging, Touch Focus, Face And Smile Detection, Image Stabilization	Auto focus, Geo-tagging, Face Detection, Panorama, HDR, Wide Selfie, Rear-cam Selfie
Video
Yes, 1080p@30fps	Yes, 1080p@30fps	1080p@30fps
Front Camera
Yes, 2 MP	Yes, 1.9 MP	5 MP

GPRS
Class 12 (4+1/3+2/2+3/1+4 slots), 32 - 48 kbps	Yes	Yes
Edge
Class 12	Yes	Yes
3G
HSDPA, 21 Mbps; HSUPA, 5.76 Mbps	HSDPA, 21 Mbps; HSUPA, 5.76 Mbps; LTE, Cat3, 50 Mbps UL, 100 Mbps DL	HSDPA, 42 Mbps; HSUPA, 5.8 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL
Bluetooth
Yes, v3.0+HS	Yes, v4.0 with A2DP, LE, EDR	v4.0, BLE, ANT+
Wi-Fi
Wi-Fi 802.11 a/b/g/n, DLNA, Wi-Fi Direct, Wi-Fi hotspot	Wi-Fi 802.11 a/b/g/n, dual-band, DLNA, Wi-Fi Direct, Wi-Fi hotspot	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi hotspot
USB
Yes, v2.0 microUSB (MHL), USB On-the-go	Yes, microUSB (MHL) v2.0, USB Host support	microUSB v2.0
GPS
Yes, with A-GPS support	Yes, with A-GPS support and GLONASS	Yes, with A-GPS, GLONASS
Browser
HTML	HTML5	HTML5