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2. Coolpad A1 16GB
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4. XOLO ERA 2 4G 8GB
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6. Karbonn K9 Smart Yuva 8GB
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General

In The Box	Handset, Earphones,Travel Charger, USB, Quick Start Guide, Ejection PinView More...	Handset, Battery, Charger, User Manual, Headset	Handset, Battery, Charger, Earphone, User Manual
Model Number	A1		K9 Smart Yuva 4G VoLTE
Model Name	A1	ERA 2-4G with VoLTE	K9 Smart Yuva 4G VoLTE
Color	Champange Gold	Nile Blue	Black & Champagne
Browse Type	Smartphones	Smartphones	Smartphones
SIM Type	Dual Sim	Dual Sim	Dual Sim
Hybrid Sim Slot	Yes	No	No
Touchscreen	Yes	Yes	Yes
OTG Compatible	Yes	No	No
Quick Charging	Yes

Display Features

Display Size	12.7 cm (5.0 inch)	12.7 cm (5 inch)	12.7 cm (5 inch)
Resolution	720 x 1280 pixels	854 x 480 pixels	854 x 480 pixels
Resolution Type		FWVGA	FWVGA
Other Display Features		Display: 400 nits

OS & Processor Features

Operating System	Android Nougat v7.1	Android Marshmallow 6	Android Nougat 7
Processor Type	Cortex A7	32-bit
Processor Core	Quad Core	Quad Core	Quad Core
Primary Clock Speed	1.1 GHz	1.3 GHz	1.3 GHz

Memory & Storage Features

Internal Storage	16 GB	8 GB	8 GB
RAM	2 GB	1 GB	1 GB
Expandable Storage			32 GB
Supported Memory Card Type			MicroSD
Memory Card Slot Type	Hybrid Slot	Dedicated Slot	Dedicated Slot
Call Log Memory		Yes	Yes
Phone Book Memory			Yes
SMS Memory			Yes

Camera Features

Primary Camera Available	Yes	Yes	Yes
Primary Camera	8MP	5MP	5MP
Primary Camera Features		Fixed Focus, 4P Largan Lens, Aperture F/2.0, Big Pixel Sensor 1.4 micrometerView More...	Flash
Secondary Camera Available	Yes	Yes	Yes
Secondary Camera		5MP	2MP
Secondary Camera Features		1.4 micron pixel
Flash	yes	Front and Rear LED Flash
Video Recording	Yes	Yes	Yes
Video Recording Resolution	Yes
Optical Zoom	Yes
Image Editor	Yes

Call Features

Phone Book		Yes	Yes
Call Wait/Hold	Yes		Yes
Conference Call			Yes
Hands Free			Yes
Video Call Support	Yes		Yes
Call Divert	Yes		Yes
Call Timer	Yes
Speaker Phone			Yes
Speed Dialing	Yes
Call Records			Yes
Logs			Yes

Connectivity Features

Network Type	4G, 3G, 2G	3G, 4G VOLTE, 2G	4G VOLTE, 3G, 2G
Supported Networks	4G LTE, GSM	4G LTE	4G VoLTE, GSM
Internet Connectivity	Yes	4G, 3G
3G	Yes	Yes	Yes
3G Speed	Yes
Pre-installed Browser		Android, Google
Bluetooth Support	Yes
Wi-Fi	Yes		Yes
Wi-Fi Hotspot	Yes		Yes
USB Connectivity	Yes
Audio Jack			3.5 mm
WAP			Yes
USB Tethering	Yes

Other Details

Smartphone	Yes	Yes	Yes
Touchscreen Type	Yes
SIM Size	Dual SIM
Removable Battery	No
SMS	Yes	Yes	Yes
SIM Access			Dual Sim
Sensors	Light sensor, Proximity sensor, Accelerometer
Other Features		RAM Type: DDR3, Metallic Middle Housing with NCVM Finish, App Search, Google Now on Tap, Doze FeatureView More...
Keypad	No
Voice Input			Yes
Instant Message	Yes		Yes
Social Networking Phone	Yes		Yes
Business Phone	Yes		Yes
MMS	Yes		Yes
Predictive Text Input	Yes
Browser		Yes	WAP
Upgradable Operating System	Android v7.1
Mobile Tracker	Yes
Keypad Type	Alphanumeric
Supported Languages	Yes

Multimedia Features

Audio Formats	Yes	MP3	MP3
FM Radio	Yes
FM Radio Recording	Yes
Video Formats	Yes
Music Player	Yes

Battery & Power Features

Battery Capacity	2500 mAh	2350 mAh	2300 mAh
Battery Type	2500		Li-Ion
Dual Battery	Yes

Warranty

Warranty Summary	1 Year Manufacturing Warranty	Brand Warranty of 1 Year Available for Mobile and 6 Months for AccessoriesView More...	1 Year
Warranty Service Type	1 Year Manufacturing Warranty		Repair
Covered in Warranty			Manufacturer Warranty
Not Covered in Warranty			Damage
Domestic Warranty			1 Year