I Smart Jumbo vs Lava Z91

Key Specs

Battery
3000 mAh	3000 mAh
Display
5.99 inches (15.21 cm)	5.7 inches (14.48 cm)
Front Camera
5 MP	8 MP
Processor
-	MediaTek MT6739
RAM
2 GB	3 GB
Rear Camera
5 MP	13 MP

Battery

Capacity
3000 mAh	3000 mAh
Removable
Yes	No
Type
Li-ion	Li-ion
USB Type-C
No	No

Design

Colours
Green	Blue
Height
-	152 mm
Thickness
-	7.7 mm
Weight
-	147 grams
Width
-	72.9 mm

Display

Aspect Ratio
-	18:9
Bezel-less display
Yes with waterdrop notch	Yes
Display Type
IPS LCD	IPS LCD
Pixel Density
377 ppi	282 ppi
Resolution
1080x1980 px (FHD+)	720x1440 px (HD+)
Screen Size
5.99 inches (15.21 cm)	5.7 inches (14.48 cm)
Screen to Body Ratio (calculated)
-	75.67 %
Touch Screen
Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Camera Setup
Single	-
Resolution
-	8 MP f/2.2, Primary Camera

Not sure which
mobile to buy?

General

Brand
i smart	Lava
Custom UI
-	Star OS
Launch Date
February 23, 2021 (Official)	April 12, 2018 (Official)
Operating System
Android v7.0 (Nougat)	Android v7.0 (Nougat)

Main Camera

Autofocus
-	Yes
Camera Features
Digital Zoom	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
Dual	Single
Flash
Yes, LED Flash	Yes, LED Flash
Image Resolution
2592 x 1944 Pixels	4128 x 3096 Pixels
Resolution
5 MP, Primary Camera	13 MP f/2.0, Primary Camera(1.12µm pixel size)
Settings
-	Exposure compensation, ISO control
Shooting Modes
-	Continuous Shooting High Dynamic Range mode (HDR)
Video Recording
-	1920x1080 @ 30 fps

Multimedia

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

Network & Connectivity

Bluetooth
Yes	Yes, v4.0
GPS
Yes with A-GPS	Yes with A-GPS
NFC
-	No
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
4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 3G Bands: UMTS 1900 / 2100 / 850 / 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 4G Speed: 50 Mbit/s ↑ 150 Mbit/s ↓ (LTE category 4) 3G Speed: HSDPA 42.2 Mbit/s ↓, HSUPA 5.76 Mbit/s ↑ GPRS: Available EDGE: Available
SIM 2
4G Bands: TD-LTE 2300(band 40) FD-LTE 1800(band 3) 3G Bands: UMTS 1900 / 2100 / 850 / 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 4G Speed: 50 Mbit/s ↑ 150 Mbit/s ↓ (LTE category 4) 3G Speed: HSDPA 42.2 Mbit/s ↓ GPRS: Available EDGE: Available
SIM Size
-	SIM1: Nano, SIM2: Nano
SIM Slot(s)
Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
Mass storage device, USB charging, microUSB	Mass storage device, USB charging, microUSB 2.0
VoLTE
Yes	Yes
Wi-Fi
Yes, Wi-Fi 4 (802.11 b/g/n)	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
Mobile Hotspot	Mobile Hotspot

Performance

CPU
Quad core, 1.3 GHz	Quad core, 1.3 GHz, Cortex A53
Chipset
-	MediaTek MT6739
Graphics
-	PowerVR GE8100
RAM
2 GB	3 GB

Sensors

Fingerprint Sensor
Yes	Yes
Fingerprint Sensor Position
Rear	Rear
Other Sensors
Light sensor, Proximity sensor, Accelerometer	Light sensor, Proximity sensor, Accelerometer

Storage

Expandable Memory
Yes, Up to 64 GB	Yes, Up to 128 GB
Internal Memory
16 GB	32 GB
USB OTG
-	Yes