General
Launch Date
May 24, 2024
September 23, 2024
Availability
Available Now
Available Now
OS
Android 14
Android 14
Custom UI
MIUI
One UI 6.1
OS Updates
2 Years
4 Years
Security Updates
3 Years
5 Years
Body
Dimensions
168.4 x 76.3 x 8.3 mm
163.9 x 76.5 x 7.8 mm
Thickness
8.3 mm
7.8 mm
Weight
193 g
180 g
Build Details
Mineral Glass
IP Rating
No
IP67
Display
Size
6.71 inches
6.7 inches
Type
IPS LCD
Super AMOLED+, Always-on display
Refresh Rate
90 Hz
120 Hz
Peak Brightness
500 nits
1000 nits
Resolution
720x1650 pixels
1080x2400 pixels
Pixel Density
268 ppi
393 ppi
Aspect Ratio
20.5:9
19.5:9
Screen to Body Ratio
82.9 %
86.4 %
Protection
Gorilla Glass 3
Performance
Chipset
Unisoc Unisoc T603
Qualcomm Snapdragon 7 Gen 1
Process Size
12 nm
4 nm
CPU
Octa core
1.8 GHz, Dual core, Cortex A75
1.6 GHz, Hexa Core, Cortex A55
Octa-core
1x2.4 GHz Cortex-A710
3x2.36 GHz Cortex-A710
4x1.8 GHz Cortex-A510
GPU
Mali-G57
Adreno 644
RAM & Storage
3GB 64GB (eMMC 5.1)
4GB 128GB (eMMC 5.1)
8GB 128GB (UFS 3.1)
8GB 256GB (UFS 3.1)
RAM Type
LPDDR4X
LPDDR4X
Expandable Memory
Yes
Yes
Camera
Main Camera
8 MP
f/2.0, (wide)

0.08 MP
(auxiliary lens)
50 MP
(f/1.8, (wide), 1/1.56", 1.0µm, PDAF, OIS)

8 MP
(f/2.2, 123˚ (ultrawide))

2 MP
(f/2.4, (macro))
OIS
No
Yes
Features
LED flash, HDR, Digital Zoom
LED flash, panorama, HDR, 10 x Digital Zoom, Auto Flash, Face detection, Touch to focus
Video Recording
1080p@30fps
4K@30fps
1080p@30/60fps
Video Recording Features
Dual Video Recording, Slo-motion, Video Pro Mode
Selfie Camera
5 MP
f/2.2, (wide)
50 MP
(f/2.4, (wide))
Selfie Features
HDR
Selfie Video Recording
1080p@30fps
4K@30fps
1080p@30/60fps
Connectivity
SIM
Dual SIM, GSM+GSM
SIM1: Nano, SIM2: Nano
Dual SIM, GSM+GSM
SIM1: Nano, SIM2: Nano (Hybrid)
SIM 1 5G Bands
13 Bands

FDD: N1, N3, N5, N7, N8, N20, N28, N66
TDD: N38, N40, N41, N77, N78
SIM 2 5G Bands
FDD N1 / N3 / N5 / N7 / N8 / N20 / N28
TDD N38 / N40 / N41 / N77 / N78
VoLTE
Yes
Yes
Wi-Fi
Wi-Fi 4
Wi-Fi 6
Wi-Fi Details
802.11 b/g/n
802.11 a/b/g/n/ac/ax 5GHz 6GHz, MIMO
Wi-Fi Features
Mobile Hotspot
Wi-Fi Direct, Mobile Hotspot
USB
USB Type-C
USB Type-C 2.0, OTG
Bluetooth
4.2
5.2
NFC
No
Yes
GPS
Yes with Glonass
Yes with A-GPS, Glonass
Infrared
Yes
Yes
UWB (Ultra Wideband)
No
No
Battery
Capacity
5000 mAh
5000 mAh
Type
Li-Polymer
Li-ion
Removable
No
No
Wired charging
10W
45W
Wireless Charging
No
No
Reverse Wireless Charging
No
No
Charger in the Box
Yes
No
Sound
Stereo Speakers
No
Yes
3.5mm Headphone Jack
Yes
No
FM Radio
Yes
No
Extra Features
Sensors
Fingerprint (side-mounted), accelerometer, compass
Fingerprint (under display, optical), accelerometer, gyro, proximity, compass
Others
Virtual proximity sensing
Colors and Pricing
Colors
Midnight Black, Moonlight White, Aurora Green
Thunder Black and Coral Green
Price in India
₹6999
₹19999
FAQs

In this comparison, the Samsung Galaxy M55s with the Qualcomm Snapdragon 7 Gen 1 (4nm) performs better than the Redmi A3x 4G with the Unisoc Unisoc T603 (12nm), thanks to its more efficient chipset.

The Samsung Galaxy M55s offers 4 years of OS updates, while the Redmi A3x 4G provides 2 years. When it comes to security updates, Samsung Galaxy M55s leads with 5 years of support.

Samsung Galaxy M55s has a superior AMOLED display, while Redmi A3x 4G uses an LCD panel. Moreover, Samsung Galaxy M55s offers a higher 120 Hz refresh rate for smoother scrolling. Samsung Galaxy M55s also has a brighter display with 1000 nits, improving outdoor visibility. Notably, Samsung Galaxy M55s has a higher resolution display, resulting in sharper visuals.

Both phones have the same 5000 mAh battery capacity. Samsung Galaxy M55s supports faster wired charging at 45W.

Samsung Galaxy M55s has an IP67 rating, while Redmi A3x 4G lacks official water and dust resistance.