Redmi A3x vs REDMI K90
Specs compared side by side, measured on real phones shared by owners with the Device Info app.
Key differences
- 1Chipset: the Redmi A3x uses the T603 (28 nm), the REDMI K90 the Snapdragon 8 Elite (3 nm TSMC N3E). The Redmi A3x's fastest core runs at 1.60 GHz, the REDMI K90's at 4.32 GHz.
- 2Screen: 6.7 inches on the Redmi A3x, 6.6 inches on the REDMI K90. Up to 90 Hz on the Redmi A3x, 120 Hz on the REDMI K90.
- 3Battery: 5,000 mAh on the Redmi A3x, 7,100 mAh on the REDMI K90.
- 4Main camera: 8 MP on the Redmi A3x, 12.6 MP on the REDMI K90.
Chipset
Chipset
T603
Snapdragon 8 EliteProcess
28 nm3 nm TSMC N3E
CPU
8× 1.60 GHz Cortex-A552× 4.32 GHz Oryon V2 Phoenix L
6× 3.53 GHz Oryon V2 Phoenix M
6× 3.53 GHz Oryon V2 Phoenix M
Top CPU speed
1.60 GHz4.32 GHz
CPU cores
88
GPU
PowerVR Rogue GE8322Adreno 830
Memory
Versions seen
3GB | 64GB
4GB | 128GB12GB | 256GB
4GB | 128GB12GB | 256GB
RAM type
LPDDR4XLPDDR5X
Storage type
—UFS 4.0
Display
Size
6.7 in6.6 in
Resolution
720 × 16501156 × 2510
Pixel density
268 ppi419 ppi
Refresh rates
90 Hzalso 60120 Hzalso 60, 90
HDR
—Dolby Vision, HDR10, HDR10+, HLG
Battery
Capacity
5,000 mAh7,100 mAh
Cameras
Back camera
8 MP3264 × 2448 · f/1.8 · 2.87 mm12.6 MP4096 × 3072 · f/1.88 · 5.56 mm · OIS
Front camera
5 MP2592 × 1944 · f/1.8 · 2.24 mm5 MP2592 × 1944 · f/2.2 · 2.24 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 7
6 GHz Wi-Fi
NoYes
Bluetooth LE Audio
NoNo
NFC
NoYes
UWB
NoNo
USB host
YesYes
Software
Android
Android 15–16Android 17
Released with
Android 14Android 16
Widevine DRM
L3L1
Sensors
Sensors
36 sensors80 sensors
These two phones have the same specs in every row.
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