Karbonn Aura Sleek 4g vs Lava Z81 16gb

Key Specs

Battery
Battery	2000 mAh	3000 mAh
Display
Display	5.0 inches (12.7 cm)	5.7 inches (14.48 cm)
Front Camera
Front Camera	2 MP	13 MP
Processor
Processor	MediaTek MT6737M	MediaTek Helio A22
RAM
RAM	1 GB	2 GB
Rear Camera
Rear Camera	5 MP	13 MP

Battery

Capacity
Capacity	2000 mAh	3000 mAh
Removable
Removable	Yes	No
Standby time
Standby Time	Up to 130 Hours(2G)	Up to 319 Hours(2G)
TalkTime
TalkTime	Up to 4 Hours(4G) / Up to 8 Hours(2G)	Up to 19.3 Hours(3G)
Type
Type	Li-ion	Li-Polymer
USB Type-C
USB Type-C	No	No

Design

Colours
Colours	Grey, Champagne	Black, Gold
Height
Height	145.6 mm	152.2 mm
Thickness
Thickness	8.8 mm	7.9 mm
Weight
Weight	174 grams	141.6 grams
Width
Width	71.5 mm	73 mm

Display

Aspect Ratio
Aspect Ratio	-	18:9
Bezel-less display
Bezel-less display	-	Yes
Display Type
Display Type	TFT	IPS LCD
Pixel Density
Pixel Density	196 ppi	282 ppi
Resolution
Resolution	480x854 px	720x1440 px (HD+)
Screen Protection
Screen Protection	-	Corning Gorilla Glass v3
Screen Size
Screen Size	5.0 inches (12.7 cm)	5.7 inches (14.48 cm)
Screen to Body Ratio (calculated)
Screen to Body Ratio (calculated)	66.05 %	75.46 %
Touch Screen
Touch Screen	Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Autofocus
Autofocus	No	-
Flash
Flash	No	-
Resolution
Resolution	2 MP, Primary Camera	-

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General

Brand
Brand	Karbonn	Lava
Custom UI
Custom UI	-	Star OS
Launch Date
Launch Date	March 17, 2017 (Official)	December 19, 2018 (Official)
Operating System
Operating System	Android v6.0 (Marshmallow)	Android v8.1 (Oreo)

Main Camera

Autofocus
Autofocus	Yes	Yes
Camera Features
Camera Features	Digital Zoom Face detection Smile detection	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
Camera Setup	Single	Single
Flash
Flash	Yes, LED Flash	Yes, LED Flash
Image Resolution
Image Resolution	2592 x 1944 Pixels	4128 x 3096 Pixels
Resolution
Resolution	5 MP, Primary Camera	13 MP, Primary Camera
Settings
Settings	-	Exposure compensation, ISO control
Shooting Modes
Shooting Modes	-	Continuous Shooting High Dynamic Range mode (HDR)

Multimedia

Audio Jack
Audio Jack	3.5 mm	3.5 mm
FM Radio
FM Radio	Yes	Yes
Loudspeaker
Loudspeaker	Yes	Yes

Network & Connectivity

Bluetooth
Bluetooth	Yes	Yes, v4.1
GPS
GPS	Yes with A-GPS	Yes with A-GPS, Glonass
NFC
NFC	No	-
Network Support
Network Support	5G Not Supported in India, 4G Supported in India, 3G, 2G	5G Not Supported in India, 4G Supported in India, 3G, 2G
SIM 1
SIM 1	4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) / 850(band 5) 3G Bands: UMTS 2100 / 900 MHz 2G Bands: GSM 1800 / 1900 / 850 / 900 MHz GPRS: Available EDGE: Available	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5) 3G Bands: UMTS 2100 / 900 MHz 2G Bands: GSM 1800 / 900 MHz GPRS: Available EDGE: Available
SIM 2
SIM 2	2G Bands: GSM 1800 / 1900 / 850 / 900 MHz	4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 850(band 5) 3G Bands: UMTS 2100 / 900 MHz 2G Bands: GSM 1800 / 900 MHz GPRS: Available EDGE: Available
SIM Size
SIM Size	SIM1: Micro	SIM1: Nano, SIM2: Nano
SIM Slot(s)
SIM Slot(s)	Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
USB Connectivity	Mass storage device, USB charging, microUSB 2.0	Mass storage device, USB charging, microUSB
VoLTE
VoLTE	Yes	Yes
Wi-Fi
Wi-Fi	Yes, Wi-Fi 4 (802.11 b/g/n)	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
Wi-Fi Features	Mobile Hotspot	Mobile Hotspot

Performance

CPU
CPU	Quad core, 1.25 GHz, Cortex A53	Quad core, 2 GHz, Cortex A53
Chipset
Chipset	MediaTek MT6737M	MediaTek Helio A22
Graphics
Graphics	Mali-T720 MP1	PowerVR GE8300
RAM type
RAM Type	-	DDR3

Sensors

Fingerprint Sensor
Fingerprint Sensor	No	Yes
Fingerprint Sensor Position
Fingerprint Sensor Position	-	Rear
Other Sensors
Other Sensors	Light sensor, Proximity sensor, Accelerometer	Light sensor, Proximity sensor, Accelerometer

Storage

Expandable Memory
Expandable Memory	Yes, Up to 32 GB	Yes, Up to 128 GB
Internal Memory
Internal Memory	8 GB	16 GB
USB OTG
USB OTG	-	Yes