Xiaomi Redmi Note 9S vs OPPO Reno 3A

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Comparing the Xiaomi Redmi Note 9S vs OPPO Reno 3A across performance, display, camera, battery and storage to help determine the better smartphone.

Here is the summary of the results:

Performance: Xiaomi Redmi Note 9S runs at a higher processing speed of 2.3 GHz, while OPPO Reno 3A runs at 2.0 GHz, making Xiaomi Redmi Note 9S the better performer.


Display: Xiaomi Redmi Note 9S offers a screen size of 6.67 inches, while OPPO Reno 3A offers 6.44 inches, making Xiaomi Redmi Note 9S the larger display of the two. OPPO Reno 3A features a AMOLED display compared to Xiaomi Redmi Note 9S's IPS LCD, making OPPO Reno 3A the better display of the two.


Rear Camera: Both Xiaomi Redmi Note 9S and OPPO Reno 3A feature a 48 MP primary rear camera.


Front Camera: Both Xiaomi Redmi Note 9S and OPPO Reno 3A feature a 16 MP primary front camera.


Battery: Xiaomi Redmi Note 9S offers a higher battery capacity with 5020 mAh, while OPPO Reno 3A offers 4025 mAh, making Xiaomi Redmi Note 9S better for longer battery life.


Storage: Xiaomi Redmi Note 9S offers higher internal storage with 64 GB, while OPPO Reno 3A offers 128 GB, making Xiaomi Redmi Note 9S the better option for storage.

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Xiaomi Redmi Note 9S
Xiaomi Redmi Note 9S
Xiaomi Redmi Note 9S
Xiaomi Redmi Note 9S
Xiaomi Redmi Note 9S
Xiaomi Redmi Note 9S
₹19,090
(Not Released in India)
✕
OPPO Reno 3A
OPPO Reno 3A
OPPO Reno 3A
OPPO Reno 3A
₹28,190
(Not Released in India)
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Summary

Spec Score

77%
77%

Release Date

21 Feb, 2021
17 Oct, 2021

Performance
Snapdragon 720G
Snapdragon 665
Octa Core (upto 2.3 GHz)
Octa Core (upto 2 GHz)
4 GB RAM
6 GB RAM

Display
6.67 inches (16.94 cm)
6.44 inches (16.36 cm)
IPS LCD
AMOLED
1080x2400 px (FHD+)
1080x2400 px (FHD+)

Rear Camera
48 MP
Primary Camera
48 MP
Primary Camera
8 MP
Ultra-Wide Angle Camera
8 MP
Ultra-Wide Angle Camera
5 MP
Macro Camera
2 MP
Macro Camera
2 MP
Depth Camera
2 MP
Depth Camera

Front Camera
16 MP
16 MP

Battery
5020 mAh
4025 mAh
18W Fast Charging
Fast Charging
No Wireless Charging
N/A

Storage

64 GB
128 GB
UFS 2.1
N/A

User Feedback

General

Operating System

Android v10 (Q)
Android v10 (Q)

Custom UI

MIUI
ColorOS

Performance

Performance Rating

Good
Good

Chipset

Qualcomm Snapdragon 720G
Qualcomm Snapdragon 665

Processor

Octa core

2.3 GHz, Dual core, Kryo 465 1.8 GHz, Hexa Core, Kryo 465
Octa core

2 GHz, Quad core, Kryo 260 1.8 GHz, Quad core, Kryo 260

Architecture (The higher, the better)

64 bit
64 bit

Fabrication (The lower, the better)

8 nm
N/A

Graphics (GPU)

Adreno 618
Adreno 610

RAM

4 GB
6 GB

RAM Type

LPDDR4X
N/A

Display

Display Rating

Excellent
Best In Class

Display Type

IPS LCD
AMOLED

Screen Size

6.67 inches  (16.94 cm)
6.44 inches  (16.36 cm)

Resolution

1080x2400 px (FHD+)
1080x2400 px (FHD+)

Brightness

450 nits
N/A

Aspect Ratio

20:9
N/A

Pixel Density

395 ppi
409 ppi

Screen to Body Ratio (calculated)

84.62 %
83.98 %

Screen Protection

Corning Gorilla Glass v5
Corning Gorilla Glass v5

Bezel-less Display

Yes with punch-hole display
Yes with waterdrop notch

Screen to Body Ratio (claimed by the brand)

N/A
89.9 %

Design

Height

165.7 mm
160.9 mm

Width

76.6 mm
74.1 mm

Thickness

8.8 mm
8.2 mm

Weight

209 grams
175 grams

Build Material

Back: Gorilla Glass
N/A

Water Resistance

Yes Splash proof
N/A

Rear Camera

Rear Camera Rating

Very Good
Very Good

Resolution

48 MP
Primary Camera10x Digital Zoomf/1.791/2.25" sensor size S5KGM2 CMOS image sensor ISOCELL Plus 1.6µm pixel size
48 MP
Primary Cameraf/1.71/1.7" sensor size
8 MP
f/2.2 Ultra-Wide Angle Camera1.12µm pixel size
8 MP
f/2.2 Ultra-Wide Angle Camera
5 MP
f/2.4 Macro Camera1.12µm pixel size
2 MP
f/2.4 Macro Camera
2 MP
f/2.4 Depth Camera
2 MP
f/2.4 Depth Camera

Autofocus

Yes Phase Detection Autofocus
Yes

Flash

Yes LED Flash
Yes LED Flash

Image Resolution

8000 x 6000 Pixels
8000 x 6000 Pixels

Settings

Exposure compensation ISO control
Exposure compensation ISO control

Shooting Modes

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

Camera Features

10 x Digital Zoom
Auto Flash
Face detection
Touch to focus
Digital Zoom
Auto Flash
Face detection
Touch to focus

Video Recording

3840x2160 @ 30 fps
1920x1080 @ 60 fps
1280x720 @ 960 fps
N/A

Front Camera

Front Camera Rating

Very Good
Very Good

Resolution

16 MP
Primary Camera1µm pixel size
16 MP
f/2.0 Primary Camera

Video Recording

1920x1080 @ 30 fps
1280x720 @ 30 fps
N/A

Battery

Battery Rating

Very Good
Excellent

Capacity

5020 mAh
4025 mAh

Battery Type

Li-Polymer
Li-ion

Quick Charging

Yes 18W Fast Charging
Yes Fast Charging

Storage

Internal Storage

64 GB
128 GB

Storage Type

UFS 2.1
N/A

Expandable Storage

Yes Up to 512 GB
Yes Up to 256 GB

Network & Connectivity

SIM Slot(s)

Dual SIM
Dual SIM

SIM Type

SIM1: Nano SIM2: Nano
N/A

Network Support

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

VoLTE

Yes
Yes

SIM 1

4G Bands:
TD-LTE 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 900(band 8) / 700(band 28) / 1900(band 2) / 850(band 5) / 800(band 20)
4G Bands:
TD-LTE 2300(band 40)
FD-LTE 1800(band 3)

SIM 2

4G Bands:
TD-LTE 2300(band 40) / 2500(band 41)
FD-LTE 2100(band 1) / 1800(band 3) / 2600(band 7) / 900(band 8) / 700(band 28) / 1900(band 2) / 1700(band 4) / 850(band 5) / 800(band 20)
4G Bands:
TD-LTE 2300(band 40)
FD-LTE 1800(band 3)

Wi-Fi

Yes Wi-Fi 5 (802.11 b/g/n/ac) 5GHz MIMO
Yes Wi-Fi 4 (802.11 b/g/n)

Wi-Fi Features

Wi-Fi Direct Mobile Hotspot
Mobile Hotspot

Bluetooth

Yes v5.0
Yes v5.0

GPS

Yes with A-GPS Glonass
Yes with A-GPS

NFC

No
Yes

Multimedia

Audio Jack

3.5 mm
3.5 mm

Sensors

Fingerprint Sensor

Yes
Yes

Fingerprint Sensor Position

Side
On-screen

Other Sensors

Light sensor Proximity sensor Accelerometer Compass Gyroscope
Light sensor Proximity sensor Accelerometer Gyroscope
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