Infinix Smart HD 2021 vs Oppo A3

Infinix Smart HD 2021

Oppo A3

Network
2G network

GSM 850, 900, 1800, 1900

GSM 850, 900, 1800, 1900; CDMA 800 & TD-SCDMA
3G network

HSDPA 850, 900, 2100

HSDPA 850, 900, 1900, 2100; HSDPA 850, 1700(AWS), 1900, 2100
4G network

LTE frequency band 1, 3, 5, 8, 38, 40, 41

LTE frequency band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500); LTE frequency band 1(2100), 3(1800), 4(1700/2100), 5(850), 8(900), 34(2000), 38(2600), 39(1900), 40(2300), 41(2500)
HSDPA speed

21.1 Mbps

-
HSUPA speed

5.76 Mbps

-
HSPA speed

-

HSPA
LTE speed

LTE, Cat4, 150 Mbps download, 50 Mbps upload

LTE
GPRS

Yes

Yes
EDGE

Yes

Yes

Design
Build

Glass front, plastic back, plastic frame

Metal
SIM

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

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

158.3 mm

156 mm
Width

75.2 mm

75.3 mm
Thickness

9.8 mm

7.8 mm
Weight

195 g

159 g
Colors

Black, Blue, Green

Garnet Red, Knight Black, Soybean Meal, Stardust Silver

Display
Display type

IPS LCD

LTPS IPS LCD capacitive touchscreen
Physical size

6.1 inches

6.2 inches
Resolution

720 x 1560 pixels

1080 x 2280 pixels
Pixel density

282 ppi

405 ppi
Display colors

16777216

16777216
Protection

2.5D curved glass screen

2.5D curved glass screen; LTPS(Low Temperature PolySilicon)
Multitouch

-

Yes
Display features

500 nits (typ)

-

Main camera
Camera type

Dual

-
Main camera

8 MP, f/2.0

16 MP, f/1.8
Primary camera resolution

3264 x 2448 pixels

4608 x 3345 pixels
Primary camera video

1080p@30fps

1080p@30fps
Primary camera Autofocus

-

phase detection autofocus
Primary camera flash

dual-LED flash

LED flash
Camera features

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

Geo-tagging, HDR, face detection, panorama, touch focus

Connectivity
WLAN

Wi-Fi 802.11b, 802.11g, 802.11n

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

Yes

Yes
WLAN WiFi Direct

-

Yes
WLAN WiFi Dual Band

-

Yes
USB

microUSB 2.0

microUSB 2.0
USB On-The-Go

-

Yes
Bluetooth

v5.0

v4.2
Bluetooth A2DP

Yes

Yes
bluetooth LE

Yes

Yes
NFC

No

-
GPS

Yes, with A-GPS

Yes, with A-GPS

Features
Messaging SMS

-

SMS(threaded view)
Messaging MMS

-

MMS
Messaging Email

-

Email
Messaging Push Email

-

Push Email
Sensors

Accelerometer, fingerprint, proximity

Accelerometer, compass, gyro, proximity