Redmi A4

Redmi A4 Comparison & Specs

Redmi A4

  • Snapdragon 4s Gen 2

    4 nm

  • 5160 mAh

    18W

  • 6.88"

    720 x 1612 pixels

  • 50 MP

    1080p@30fps

  • Specs Redmi A4 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
General
Launch Date
November 20, 2024
August 04, 2025
Availability
Available Now
Available Now
OS
Android 14
Android 15
Custom UI
HyperOS 1.0
Funtouch 15
OS Updates
2 Years
2 Years
Security Updates
4 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
171.9 x 77.8 x 8.2 mm
162.3 x 75.3 x 7.9 mm
Thickness
8.2 mm
7.9 mm
Weight
212.4 g
197 g
Build Details
Glass back, Plastic Frame
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
6.88 inches
6.67 inches
Type
IPS LCD
AMOLED
Refresh Rate
120 Hz
120 Hz
Peak Brightness
600 nits
1800 nits
Resolution
720 x 1612 pixels
1080 x 2400 pixels
Pixel Density
257 ppi
395 ppi
Aspect Ratio
20:9
20:9
Screen to Body Ratio
85.0 %
87.9 %
Performance
Chipset¹
Qualcomm Snapdragon 4s Gen 2
Qualcomm Snapdragon 4 Gen 2
Process Size
4 nm
4 nm
CPU
Octa-core
2x2.2 GHz Cortex-A78
6x2.0 GHz Cortex-A55
Octa-core
2x2.2 GHz Cortex-A78
6x1.95 GHz Cortex-A55
GPU
Adreno
Adreno 613
RAM & Storage
4GB 64GB (UFS 2.2)
4GB 128GB (UFS 2.2)
8GB 128GB (UFS 3.1)
8GB 256GB (UFS 3.1)
RAM Type
LPDDR4X
LPDDR4X
Expandable Memory
Yes
Yes
Camera
Main Camera
50 MP
f/1.8, (wide)
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
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 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
7 5G Bands

FDD: N1, N3, N5, N8, N28
TDD: N40, N78
8 5G Bands

FDD: N1, N3, N5, N8, N28
TDD: N40, N77, N78
SIM 2
7 5G Bands

FDD: N1, N3, N5, N8, N28
TDD: N40, N78
8 5G Bands

FDD: N1, N3, N5, N8, N28
TDD: N40, N77, N78
VoLTE
Yes
Yes
Wi-Fi
Wi-Fi 5
Wi-Fi 5
Wi-Fi Details
802.11 a/b/g/n/ac 5GHz
802.11 a/b/g/n/ac 5GHz
Wi-Fi Features
Mobile Hotspot
Mobile Hotspot
USB
USB Type-C 2.0
USB Type-C 2.0, OTG
Bluetooth
5.3
5.0
NFC
No
No
GPS
Yes with A-GPS
Yes with Glonass
Infrared
Yes
No
UWB (Ultra Wideband)
No
No
Battery
Capacity
5160 mAh
6000 mAh
Type
Li-Polymer
Li-Ion
Removable
No
No
Wired charging
18W
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
No
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
Sparkle Purple, Starry Black
Glam White, Olive Green
Price in India
₹7998
₹21999
FAQs

In this performance comparison, the vivo Y400 with its Qualcomm Snapdragon 4 Gen 2 (4nm) performs better than the Redmi A4 with the Qualcomm Snapdragon 4s Gen 2 (4nm), thanks to superior chipset efficiency.

Both phones offer the same 2 years of OS update support. For security updates, Redmi A4 offers 4 years of support compared to vivo Y400's 3 years.

vivo Y400 features a superior AMOLED display, while Redmi A4 comes with an LCD panel. Both smartphones offer the same 120 Hz refresh rate. 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 18W on Redmi A4.

vivo Y400 includes an IP69 rating, while Redmi A4 lacks an official IP rating.

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