Redmi A3x vs Xiaomi Redmi 12 5G

Specs compared side by side, measured on real phones shared by owners with the Device Info app.

Redmi A3xT603Change
Redmi Xiaomi Redmi 12 5GSnapdragon 4 Gen 2Change

Key differences

  1. Chipset: the Redmi A3x uses the T603 (28 nm), the Xiaomi Redmi 12 5G the Snapdragon 4 Gen 2 (4 nm Samsung). The Redmi A3x's fastest core runs at 1.60 GHz, the Xiaomi Redmi 12 5G's at 2.21 GHz.
  2. Screen: 6.7 inches on the Redmi A3x, 6.8 inches on the Xiaomi Redmi 12 5G. Both run at up to 90 Hz.
  3. Main camera: 8 MP on the Redmi A3x, 12.5 MP on the Xiaomi Redmi 12 5G.
  4. Versions: owners have shared the Redmi A3x as 3GB | 64GB, the Xiaomi Redmi 12 5G as 8GB | 256GB.

Chipset

Chipset
T603Snapdragon 4 Gen 2
Process
28 nm4 nm Samsung
CPU
8× 1.60 GHz Cortex-A552× 2.21 GHz Cortex-A78
6× 1.96 GHz Cortex-A55
Top CPU speed
1.60 GHz2.21 GHz
CPU cores
88
GPU
PowerVR Rogue GE8322Adreno 613

Memory

Versions seen
3GB | 64GB8GB | 256GB
RAM type
LPDDR4XLPDDR5

Display

Size
6.7 in6.8 in
Resolution
720 × 16501080 × 2460
Pixel density
268 ppi396 ppi
Refresh rates
90 Hzalso 6090 Hzalso 30, 49, 60

Battery

Capacity
5,000 mAh5,000 mAh

Cameras

Back camera
8 MP3264 × 2448 · f/1.8 · 2.87 mm12.5 MP4080 × 3072 · f/1.8 · 4.22 mm
Front camera
5 MP2592 × 1944 · f/1.8 · 2.24 mm8 MP3264 × 2448 · f/2.05 · 2.78 mm

Megapixels are what Android reports to apps. Many phones combine pixels by default, so the advertised megapixels can be higher.

Connectivity

Wi-Fi
Wi-Fi 4Wi-Fi 5
6 GHz Wi-Fi
NoYes
Bluetooth LE Audio
NoNo
NFC
NoNo
UWB
NoNo
USB host
YesYes

Software

Android
Android 16Android 15
Released with
Android 14Android 13
Widevine DRM
L3L1

Sensors

Sensors
36 sensors29 sensors
Redmi A3x full specs Xiaomi Redmi 12 5G full specs

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From phones shared with the Device Info app · updated October 2026 Hardware specs only. No personal data. Privacy