Infinix Smart HD 2021 vs Xiaomi Redmi A3X

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Comparing the Infinix Smart HD 2021 vs Xiaomi Redmi A3X across performance, display, camera, battery, storage and user rating to help determine the better smartphone.

Here is the summary of the results:

Performance: Both Infinix Smart HD 2021 and Xiaomi Redmi A3X run at the same processing speed of 1.8 GHz.


Display: Xiaomi Redmi A3X offers a screen size of 6.71 inches, while Infinix Smart HD 2021 offers 6.1 inches, making Xiaomi Redmi A3X the larger display of the two. Both Infinix Smart HD 2021 and Xiaomi Redmi A3X feature the same IPS LCD display.


Rear Camera: Both Infinix Smart HD 2021 and Xiaomi Redmi A3X feature a 8 MP primary rear camera.


Front Camera: Both Infinix Smart HD 2021 and Xiaomi Redmi A3X feature a 5 MP primary front camera.


Battery: Both Infinix Smart HD 2021 and Xiaomi Redmi A3X offer the same 5000 mAh battery capacity.


Storage: Xiaomi Redmi A3X offers higher internal storage with 64 GB, while Infinix Smart HD 2021 offers 32 GB, making Xiaomi Redmi A3X the better option for storage.


User Rating: Infinix Smart HD 2021 receives a higher user rating of 4.3, while Xiaomi Redmi A3X has a rating of 4.1.

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✕
Infinix Smart HD 2021
₹6,499
(Out of Stock)
✕
Xiaomi Redmi A3X
₹5,995
(Out of Stock)
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Summary

Spec Score

67%
72%

Release Date

24 Dec, 2020
24 Jun, 2024

Performance

MediaTek Helio A20
Unisoc T603
Quad Core (upto 1.8 GHz)
Tru-Octa Core (upto 1.8 GHz)
2 GB RAM
3 GB RAM

Display

6.1 inches (15.49 cm)
6.71 inches (17.04 cm)
IPS LCD
IPS LCD
720x1560 px (HD+)
720x1650 px (HD+)
N/A
90 Hz Refresh Rate

Rear Camera

8 MP
Primary Camera
8 MP
Wide Angle Primary Camera
N/A
0.08 MP
Camera

Front Camera

5 MP
5 MP
Wide Angle Lens

Battery

5000 mAh
5000 mAh
N/A
No Wireless Charging

Storage

32 GB
64 GB
N/A
eMMC 5.1

User Ratings

4.3/5
(67,052 ratings)
4.1/5
(8,385 ratings)

Video

Videos
1 More Video
There are no videos available for the device.

User Feedback

General

Launch Date

Dec 24, 2020
(Official)
Jun 24, 2024
(Official)

Operating System

Android v10 (Q)
Android v14

OS Updates

N/A
2 Years

Security Updates

N/A
3 Years

Custom UI

Android Go
MIUI

Performance

Performance Rating

Avg
Good

Chipset

MediaTek Helio A20
Unisoc T603

Processor

Quad core, 1.8 GHz, Cortex A53
Octa core, 1.8 GHz, Cortex A55

Architecture (The higher, the better)

N/A
64 bit

Graphics (GPU)

PowerVR GE8300
N/A

RAM

2 GB
3 GB / 4 GB

RAM Type

N/A
LPDDR4X

Display

Display Rating

Very Good
Excellent

Display Type

IPS LCD
IPS LCD

Screen Size

6.1 inches  (15.49 cm)
6.71 inches  (17.04 cm)

Resolution

720x1560 px (HD+)
720x1650 px (HD+)

Brightness

500 nits
N/A

HBM Brightness

N/A
500 nits

Refresh Rate

N/A
90 Hz

Touch Sampling Rate

N/A
180 Hz

Aspect Ratio

19.5:9
N/A

Pixel Density

282 ppi
268 ppi

Screen to Body Ratio (calculated)

76.67 %
83.34 %

Screen Protection

N/A
Corning Gorilla

Bezel-less Display

Yes with waterdrop notch
Yes with waterdrop notch

Screen to Body Ratio (claimed by the brand)

85 %
90 %

Design

Height

158.3 mm
168.4 mm

Width

75.1 mm
76.3 mm

Thickness

9.8 mm
8.3 mm

Weight

195 grams
193 grams

Build Material

N/A
Back: Mineral Glass

Rear Camera

Rear Camera Rating

Good
Good

Resolution

8 MP
Primary Cameraf/2.0
8 MP
Primary Cameraf/2.0 Wide Angle
N/A
0.08 MP

Autofocus

Yes
N/A

Flash

Yes Dual LED Flash
Yes LED Flash

Image Resolution

3264 x 2448 Pixels
3264 x 2448 Pixels

Settings

Exposure compensation
N/A

Shooting Modes

Continuous Shooting
High Dynamic Range mode (HDR)
High Dynamic Range mode (HDR)
Film Camera

Camera Features

Digital Zoom
Auto Flash
Face detection
Touch to focus
Digital Zoom

Video Recording

Full HD @30 fps
Full HD @30 fps

Video Recording Features

N/A
Short Video Mode

Front Camera

Front Camera Rating

Good
Very Good

Resolution

5 MP
f/2.0 Primary Camera
5 MP
f/2.2 Wide Angle Primary Camera

Flash

Yes Dual LED
Yes Soft light flash

Video Recording

Full HD @30 fps
Full HD @30 fps

Battery

Battery Rating

Very Good
Very Good

Capacity

5000 mAh
5000 mAh

Battery Type

Li-Polymer
Li-Polymer

TalkTime

Up to 35 Hours(4G)
N/A

Storage

Internal Storage

32 GB
64 GB / 128 GB

Storage Type

N/A
eMMC 5.1

Expandable Storage

Yes Up to 256 GB
Yes Up to 1 TB

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM

SIM Type

SIM1: Nano SIM2: Nano
SIM1: Nano SIM2: Nano

Network Support

5G Not Supported 4G
5G Not Supported 4G

VoLTE

Yes
Yes

SIM 1

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20)

SIM 2

4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 850(band 5)
4G Bands:
TD-LTE 2600(band 38) / 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 850(band 5) / 800(band 20)

SAR Value

Head: 0.527 W/kg Body: 1.218 W/kg
Head: 0.838 W/kg Body: 0.776 W/kg

Wi-Fi

Yes Wi-Fi 4 (802.11 a/b/g/n)
Yes Wi-Fi 4 (802.11 b/g/n)

Wi-Fi Features

Mobile Hotspot
Mobile Hotspot

Bluetooth

Yes v5.0
Yes v5.4

GPS

Yes with A-GPS
Yes with Glonass

NFC

No
No

Multimedia

Audio Jack

3.5 mm
3.5 mm

Audio Features

DTS Sound
N/A

Sensors

Fingerprint Sensor

Yes
Yes

Fingerprint Sensor Position

Rear
Side

Other Sensors

Light sensor Proximity sensor Accelerometer
Light sensor Proximity sensor Accelerometer Compass