Lava O2 vs Lava Z25

Key Specs

Battery
5000 mAh	3020 mAh
Display
6.5 inches (16.51 cm)	5.5 inches (13.97 cm)
Front Camera
8 MP	8 MP
Processor
Unisoc T616	MediaTek MT6750
RAM
8 GB	4 GB
Rear Camera
50 MP	13 MP

Battery

Capacity
5000 mAh	3020 mAh
Quick Charging
Yes, Fast, 18W	-
Removable
No	No
Standby time
Up to 500 Hours(2G)	Up to 262 Hours(2G)
TalkTime
Up to 38 Hours(4G)	Up to 9.3 Hours(3G) / Up to 18 Hours(2G)
Type
Li-Polymer	Li-ion
USB Type-C
Yes	No

Design

Build Material
-	Case: Metal Back: Metal
Colours
Imperial Green, Majestic Purple, Royal Gold	Grey, Champagne Gold
Height
165 mm	151.5 mm
Thickness
8.7 mm	8.5 mm
Weight
200 grams Below	163 grams
Width
76.1 mm	76.4 mm

Display

Aspect Ratio
20:9	-
Bezel-less display
Yes with punch-hole display	-
Display Type
IPS LCD	IPS LCD
Pixel Density
270 ppi	267 ppi
Refresh Rate
90 Hz	-
Resolution
720x1600 px (HD+)	720x1280 px (HD)
Screen Size
6.5 inches (16.51 cm)	5.5 inches (13.97 cm)
Screen to Body Ratio (calculated)
81.24 %	71.88 %
Touch Screen
Yes, Capacitive Touchscreen, Multi-touch	Yes, Capacitive Touchscreen, Multi-touch

Front Camera

Camera Setup
Single	-
Flash
Yes, Screen flash	Yes, LED Flash
Resolution
8 MP, Primary Camera	8 MP f/2.0, Primary Camera

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General

Brand
Lava	Lava
Custom UI
-	Star OS
Launch Date
March 27, 2024 (Official)	March 23, 2017 (Official)
Operating System
Android v13	Android v6.0 (Marshmallow)

Main Camera

Autofocus
Yes	Yes, Phase Detection autofocus
Camera Features
Digital Zoom Auto Flash Face detection Filters Touch to focus	Digital Zoom Auto Flash Face detection Touch to focus
Camera Setup
Dual	Single
Flash
Yes, LED Flash	Yes, Dual LED Flash
Image Resolution
8150 x 6150 Pixels	4128 x 3096 Pixels
Resolution
50 MP, Wide Angle, Primary Camera	13 MP f/2.0, Primary Camera
Sensor
-	IMX258, Exmor-RS CMOS Sensor
Settings
Exposure compensation, ISO control	Exposure compensation
Shooting Modes
Continuous Shooting Burst mode	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, v5.0	Yes, v4.0
GPS
Yes with A-GPS	Yes with A-GPS
NFC
No	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) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 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) 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
SIM 2
4G Bands: TD-LTE 2300(band 40) / 2500(band 41) FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 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) 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
SIM Size
SIM1: Nano, SIM2: Nano	SIM1: Micro, SIM2: Nano (Hybrid)
SIM Slot(s)
Dual SIM, GSM+GSM	Dual SIM, GSM+GSM
USB Connectivity
Mass storage device, USB charging	microUSB 2.0
VoLTE
Yes	Yes
Wi-Fi
Yes, Wi-Fi 5 (802.11 b/g/n/ac)	Yes, Wi-Fi 4 (802.11 b/g/n)
Wi-Fi Features
Mobile Hotspot	Mobile Hotspot

Performance

Architecture
64 bit	64 bit
CPU
Octa core (2 GHz, Dual core, Cortex A75 + 1.8 GHz, Hexa Core, Cortex A55)	Octa core (1.5 GHz, Quad core, Cortex A53 + 1 GHz, Quad core, Cortex A53)
Chipset
Unisoc T616	MediaTek MT6750
Fabrication
12 nm	-
Graphics
Mali-G57	Mali-T860 MP2
RAM type
LPDDR4X	-

Sensors

Fingerprint Sensor
Yes	Yes
Fingerprint Sensor Position
Side	Back
Other Sensors
Light sensor, Proximity sensor, Accelerometer	Light sensor, Proximity sensor, Accelerometer

Storage

Expandable Memory
Yes, Up to 512 GB	Yes, Up to 128 GB
Internal Memory
128 GB	32 GB
Storage Type
UFS 2.2	-
USB OTG
Yes	-