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Redmi A3x 4G

Redmi A3x 4G Comparison & Specs

Redmi A3x 4G

  • Unisoc T603

    12 nm

  • 5000 mAh

    10W

  • 6.71"

    720x1650 pixels

  • 8 MP

    1080p@30fps

  • Specs Redmi A3x 4G Amazon Link

vivo Y400

vivo Y400 Comparison & Specs

vivo Y400

  • Snapdragon 4 Gen 2

    4 nm

  • 6000 mAh

    90W

  • 6.67"

    1080 x 2400 pixels

  • 50 MP

    1080p@30fps

  • Specs vivo Y400 Amazon Link
Redmi A3x 4G Comparison & Specs

Redmi A3x 4G

Redmi A3x 4G Amazon Link
vivo Y400 Comparison & Specs

vivo Y400

vivo Y400 Amazon Link
General
Launch Date
May 24, 2024
August 04, 2025
Availability
Available Now
Available Now
OS
Android 14
Android 15
Custom UI
MIUI
Funtouch 15
OS Updates
2 Years
2 Years
Security Updates
3 Years
3 Years
AI Features
AI Image Studio, AI Erase 2.0, AI Transcript Assist, AI Note Assist, AI Documents, Circle to Search, Focus Mode, Screen Translation and more
Body
Dimensions
168.4 x 76.3 x 8.3 mm
162.3 x 75.3 x 7.9 mm
Thickness
8.3 mm
7.9 mm
Weight
193 g
197 g
Build Details
Mineral Glass
Plastic Back, Plastic Frame
IP Rating
No
IP69 (dust tight and water resistant (high pressure water jets; immersible up to 2m for 30 min), MIL-STD-810H compliant*, also IP68 rated)
Display
Size
6.71 inches
6.67 inches
Type
IPS LCD
AMOLED
Refresh Rate
90 Hz
120 Hz
Peak Brightness
500 nits
1800 nits
Resolution
720x1650 pixels
1080 x 2400 pixels
Pixel Density
268 ppi
395 ppi
Aspect Ratio
20.5:9
20:9
Screen to Body Ratio
82.9 %
87.9 %
Protection
Gorilla Glass 3
Performance
Chipset¹
Unisoc Unisoc T603
Qualcomm Snapdragon 4 Gen 2
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
2x2.2 GHz Cortex-A78
6x1.95 GHz Cortex-A55
GPU
Mali-G57
Adreno 613
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), 1/1.95", 0.8µm, PDAF

2 MP
f/2.4, (depth)
OIS
No
No
Features
LED flash, HDR, Digital Zoom
Ring-LED flash, panorama, HDR
Video Recording
1080p@30fps
1080p@30fps
Selfie Camera
5 MP
f/2.2, (wide)
32 MP
f/2.45, (wide), 1/3.1", 0.7µm
Selfie Features
HDR
Selfie Video Recording
1080p@30fps
1080p@30fps
Connectivity
SIM
Dual SIM, GSM+GSM
SIM1: Nano, SIM2: Nano
Dual SIM
SIM1: Nano, SIM2: Nano (Hybrid)
SIM 1
No 5G Support (Supports 4G Only)
8 5G Bands

FDD: N1, N3, N5, N8, N28
TDD: N40, N77, N78
SIM 2
No 5G Support (Supports 4G Only)
8 5G Bands

FDD: N1, N3, N5, N8, N28
TDD: N40, N77, N78
VoLTE
Yes
Yes
Wi-Fi
Wi-Fi 4
Wi-Fi 5
Wi-Fi Details
802.11 b/g/n
802.11 a/b/g/n/ac 5GHz
Wi-Fi Features
Mobile Hotspot
Mobile Hotspot
USB
USB Type-C
USB Type-C 2.0, OTG
Bluetooth
4.2
5.0
NFC
No
No
GPS
Yes with Glonass
Yes with Glonass
Infrared
Yes
No
UWB (Ultra Wideband)
No
No
Battery
Capacity
5000 mAh
6000 mAh
Type
Li-Polymer
Li-Ion
Removable
No
No
Wired charging
10W
90W
Charging Speed
50% in 20 min
Wireless Charging
No
No
Reverse Wireless Charging
No
No
Charger in the Box
Yes
Yes
Sound
Stereo Speakers
No
Yes
3.5mm Headphone Jack
Yes
No
FM Radio
Yes
No
Extra Features
Sensors
Fingerprint (side-mounted), accelerometer, compass
Under-display optical fingerprint sensor, accelerometer, gyroscope, proximity, compass
Others
Virtual proximity sensing
Colors and Pricing
Colors
Midnight Black, Moonlight White, Aurora Green
Glam White, Olive Green
Price in India
₹6136
Redmi A3x 4G Amazon Link
₹21999
vivo Y400 Amazon Link
FAQs

In this performance comparison, the vivo Y400 with its Qualcomm Snapdragon 4 Gen 2 (4nm) performs better than the Redmi A3x 4G with the Unisoc Unisoc T603 (12nm), thanks to superior chipset efficiency.

Both Redmi A3x 4G and vivo Y400 offer the same software support — 2 years of OS updates and 3 years of security updates.

vivo Y400 features a superior AMOLED display, while Redmi A3x 4G comes with an LCD panel. In terms of smoothness, vivo Y400 offers a higher 120 Hz refresh rate, ensuring fluid scrolling and animations. vivo Y400 also boasts a brighter screen with 1800 nits of peak brightness, enhancing outdoor visibility. Notably, vivo Y400 offers a higher screen resolution, resulting in sharper visuals and more detailed content.

vivo Y400 features a larger 6000 mAh battery, potentially delivering better battery life. vivo Y400 also supports faster wired charging at 90W, compared to 10W on Redmi A3x 4G.

vivo Y400 includes an IP69 rating, while Redmi A3x 4G lacks an official IP rating.

¹ Scores can vary even with the same chipset due to RAM, thermals, and software optimization.