Compare models
Model

Compare Lava Z81 and Oppo A31

Lava Z81 vs Oppo A31

Lava Z81

Oppo A31

Lava Z81

Oppo A31

Network
2G network

GSM 900, 1800

GSM 850, 900, 1800, 1900
3G network

HSDPA 900, 2100

HSDPA 850, 900, 2100
4G network

LTE frequency band 1(2100), 3(1800), 5(850), 8(900), 40(2300), 41(2500)

LTE frequency band 1(2100), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

42.2 Mbps

42 Mbps
HSUPA speed

5.76 Mbps

5.76 Mbps
LTE speed

LTE, Cat4, 150 Mbps download, 51 Mbps upload

LTE-A
GPRS

Yes

Yes
EDGE

Yes

Yes

Availability
Oficially announced

2018-10

2020-02
Status

2018-10

2020-02

Design
Build

Plastic, metal

Plastic
SIM

Dual SIM (Nano-SIM, dual stand-by)

Dual SIM (Nano-SIM, dual stand-by)
Height

152.2 mm

163.9 mm
Width

73 mm

75.5 mm
Thickness

7.9 mm

8.3 mm
Weight

141 g

180 g
Colors

Black/Blue, Gold/Black

Black, White

Display
Display type

IPS capacitive touchscreen

IPS capacitive touchscreen
Physical size

5.7 inches

6.5 inches
Resolution

1080 x 2160 pixels

720 x 1600 pixels
Pixel density

424 ppi

270 ppi
Display colors

16777216

16777216
Protection

Corning Gorilla Glass 3

Scratch resistant
Multitouch

Yes

Yes

Hardware
CPU

-

Octa-core
CPU

Quad-core 2.0 GHz Cortex-A53

Quad-core 2.3 GHz Cortex-A53
CPU(second)

quad-core 1.8 GHz Cortex-A53
Chipset

Mediatek MT6761

Mediatek MT6765V/CB Helio P35
GPU

PowerVR GE8300

PowerVR GE8320
Memory RAM

2, 3 GB

4 GB
Internal storage

32 GB

128 GB
Memory card

microSD, microSDHC, microSDXC

microSD, microSDHC, microSDXC
Memory card max

128 GB

256 GB
Storage

-

eMMC 5.1

OS
OS

Android 8.1 Oreo

ColorOS 6.1 (Android 9.0 Pie)

Main camera
Camera type

-

Triple
Main camera

13 MP, f/2.2

12 MP, f/1.8
2 MP, f/2.4 , 27 mm
2 MP, f/2.4
Primary camera resolution

4160 x 3120 pixels

4096 x 3072 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera flash

LED flash

LED flash
Camera features

Autofocus, continuous shooting, digital zoom, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode

Autofocus, geotagging, panorama, HDR, touch focus, face detection, white balance settings, ISO settings, exposure compensation, self-timer, scene-mode, macro mode, phase detection autofocus

Selfie camera
Selfie camera

13 MP

8 MP, f/2.0
1/5.0" , 1.75 µm
Selfie camera resolution

4160 x 3120 pixels

3264 x 2448 pixels
Selfie camera video

720p@30fps

1080p@30fps

Sound
3.5mm jack

Yes

Yes
Loudspeaker

Yes

Yes
Earpiece

Yes

Yes

Multimedia
Radio

FM Radio

FM Radio

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

Wi-Fi 802.11a, 802.11b, 802.11g, 802.11n, 802.11n 5Ghz, 802.11ac
WLAN WiFi Hotspot

Yes

Yes
WLAN WiFi Direct

-

Yes
Wi-Fi display

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v4.2

v5.0
Bluetooth A2DP

Yes

Yes
bluetooth LE

-

Yes
GPS

Yes, with A-GPS

Yes, with A-GPS
BDS

-

Yes

Features
Sensors

Accelerometer, fingerprint, light, proximity

Accelerometer, compass, fingerprint, light, proximity

Browser
HTML

HTML5

HTML5

Battery
Battery type

Li-Po

Li-Po
Battery capacity

3000 mAh

4230 mAh
Battery removable

Non-removable

Non-removable
Talk time 2G

19 h

-
Talk time 3G

19 h

-
Talk time 4G

21 h

-
Standby time 2G

320 h

-
Standby time 3G

320 h

-

Cost
Price

-

200 USD

latest Lava models

other Lava models

Oppo A31 comparisons

latest Oppo models

other Oppo models