O2 XDA Comet vs Samsung Galaxy K Zoom vs Samsung Galaxy S7 Edge

Price Comparison (India)

Manufacturer
O2	Samsung	Samsung
Announced
September 2007	April 2014	February 2016
Status
Available	Available - June 2013	Available - March 2016
Price
-	-	Rs. 50,900 ($748.53) [Similarly Priced]
Colors
Silver	Charcoal, Electric Blue, Shimmery White	Various
Form Factor
Candybar	Candybar	Candybar
Dimension
106 x 58 x 19 mm (4.17 x 2.28 x 0.75 in)	137.5 x 70.8 x 16.6 mm (5.41 x 2.79 x 0.65 in)	150.9 x 72.6 x 7.7 mm (5.94 x 2.86 x 0.3 in)
Weight
145 g (5.11 oz)	200 g (7.05 oz)	157 g (5.54 oz)
SIM Type
-	-	Single SIM (Nano-SIM), Dual SIM (Nano-SIM, Dual Stand-by)
2G Network
GSM 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900	GSM 850 / 900 / 1800 / 1900
3G Network
HSDPA 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100	HSDPA 850 / 900 / 1900 / 2100 HSDPA 850 / 900 / 1700 / 1900 / 2100
4G Network
-	LTE 800 / 850 / 900 / 1800 / 2100 / 2600	LTE
Messaging
SMS, MMS, EMail	SMS, MMS, EMail, IM	SMS, MMS, EMail, IM
Build Features
-	-	- Heart rate sensor - Fingerprint sensor - IP68 certified - dust and water resistant - Water resistant up to 1 meter and 30 minutes
Notification LED
-	-	Yes

OS
Microsoft Windows Mobile 6.0 Professional	Android OS, v4.4.2 (KitKat)	Android OS, v6.0 (Marshmallow)
Processor
Intel XScale PXA 270 620 MHz,	Hexa-core - 1.3 GHz Quad-Core + 1.7 GHz Dual-Core,	Quad-core (2x 2.15 GHz Kryo & 2x 1.6 GHz Kryo)/ Octa-core (4x2.3 GHz Mongoose & 4x1.6 GHz Cortex-A53) , Qualcomm MSM8996 Snapdragon 820/ Exynos 8 Octa 8890
GPU
	-	Adreno 530/ Mali-T880 MP12
RAM
64 MB	2 GB	4 GB
Internal Memory
N/A	8 GB	32 GB
External Memory
miniSD	microSD, up to 64 GB	microSD upto 256GB

Type
TFT resistive touchscreen	Super AMOLED capacitive touchscreen	Super AMOLED Capacitive Touchscreen, Corning Gorilla Glass 5, Curved Edge Screen, Always-on display
Colors
65K colors	16M colors	16M colors
Size
2.7 inches	4.8 inches	5.5 inches
Resolution
240 x 320 pixels (148 ppi)	720 x 1280 pixels (306 ppi)	1440 x 2560 pixels (534 ppi)
Screen-to-Body Ratio
36.79%	65.23%	76.13%
Multi-Touch

Rear Camera
2 MP, 1600x1200 pixels	20.7 MP, 4992 х 3744 pixels	12 MP, 4608 x 2592 pixels
Flash
LED flash	LED Flash	LED Flash
Features
	Auto focus, 1/2.3 BSI CMOS Sensor, 10x Optical Zoom, OIS, 24-240 mm, F3.1-6.3, Geo-tagging, Touch Focus, Face And Smile Detection, HDR, Panorama	Phase Detection Autofocus, Dual Pixel, f/1.7, 1/2.6' Sensor Size, 1 µm Pixel Size, Smart Optical Image Stablization, Geo-tagging, Touch Focus, Face Detection, Auto HDR, Panorama
Video
Yes	Yes, 1080p@30fps	2160p@30fps, 1080p@60fps, 720p@120fps, HDR, dual-video rec.
Front Camera
VGA videocall camera	Yes, 2 MP	5 MP, f/1.7, Dual Video Call, Auto HDR

GPRS
Class 10 (4+1/3+2 slots), 32 - 48 kbps	Yes	Yes
Edge
Yes	Yes	Yes
3G
HSDPA	HSDPA, 42 Mbps, HSUPA, 5.76 Mbps; LTE, Cat4, 50 Mbps UL, 150 Mbps DL	HSPA 42.2/5.76 Mbps, LTE Cat9 450/50 Mbps
Bluetooth
Yes, v1.2	Yes, v4.0 with A2DP, LE	v4.2, A2DP, LE, apt-X
Wi-Fi
Wi-Fi 802.11b/g	Wi-Fi 802.11 a/b/g/n, dual-band, Wi-Fi Direct, DLNA, Wi-Fi hotspot	Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot
USB
Yes, miniUSB	Yes, microUSB v2.0 (MHL), USB On-the-go	microUSB v2.0, USB Host
GPS
No	Yes, with A-GPS support and GLONASS	Yes, with A-GPS, GLONASS, BDS
Browser
WAP 2.0/xHTML, HTML (PocketIE)	HTML5	HTML5