Xiaomi MI A3 vs. Xiaomi Redmi Note 12 5G

Phone Comparison, Reviews and Tests

In depth comparison and review of Xiaomi MI A3 and Xiaomi Redmi Note 12 5G. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.

Phone Specifications Comparison

Xiaomi MI A3 vs. Xiaomi Redmi Note 12 5G Comparison Chart
DESIGN AND DIMENSIONS Xiaomi MI A3 Xiaomi Redmi Note 12 5G
Product Type Smartphone Smartphone
Form Factor Touch Touch
Height 153.48 mm 165.88 mm Xiaomi Redmi Note 12 5G has greater height than Xiaomi MI A3.
Width 71.85 mm 76.21 mm Xiaomi Redmi Note 12 5G has greater width than Xiaomi MI A3.
Depth 8.475 mm 7.98 mm Xiaomi Redmi Note 12 5G is narrower than Xiaomi MI A3.
Weight 173.8 g 189 g Xiaomi MI A3 is lighter than Xiaomi MI A3.
Body Colour Kind of grey Ice blue | Forest green | Onyx grey
Body Material Corning Gorilla Glass 5 -
Protection - Dustproof, splashproof
Waterproof (Water-resistant) - - Xiaomi Redmi Note 12 5G is waterproof.
IP rating - IP53
SAR Value 2.34 W/kg (limb), 1.097 W/kg (body), 0.301 W/kg (head) 0.68 W/kg (head), 0.911 W/kg (body), 2.395 W/kg (limb)
Connector Type USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
USB Type-C - 24 pin USB-C
Headset jack - mini-phone 3.5mm
SIM Card Type (Size) Nano SIM -
SIM Card Qty Dual-SIM Dual-SIM
DISPLAY Xiaomi MI A3 Xiaomi Redmi Note 12 5G
Display Type OLED display OLED display
Display Technology AMOLED AMOLED
Screen Size (Display Size) 6.088" 6.67" Xiaomi Redmi Note 12 5G has larger screen size than Xiaomi MI A3.
Screen Resolution (Display Resolution) 1560 x 720 pixels 2400 x 1080 pixels Xiaomi Redmi Note 12 5G has better screen resolution than Xiaomi MI A3.
Display Format HD+ Full HD+
Pixel Density - 395 ppi
Aspect Ratio 19.5:9 -
Max Brightness - 1200 cd/m²
Contrast Ratio 60000:1 4500000:1 Xiaomi Redmi Note 12 5G has better display contrast ratio than Xiaomi MI A3.
Display Refresh Rate - 120 Hz
Touch Sampling Rate - 240 Hz
Display Features 2.5D Glass, Dot Drop display Sunlight Display, Reading mode, DCI-P3 Wide colour gamut, DotDisplay, E2 Pro
Display Protection (Screen Protector) Corning Gorilla Glass 5 (scratch resistant glass) -
PROCESSOR Xiaomi MI A3 Xiaomi Redmi Note 12 5G
Processor Type (CPU) Qualcomm Snapdragon 665 Qualcomm Snapdragon 4 Gen 1
Clock Speed 2 GHz 2 GHz Both phones have the same clock speed.
Processor Core Qty 8-core 8-core Both phones have the same number of phone cores.
Graphics System (GPU) Qualcomm ADRENO 610 Qualcomm ADRENO 619
MEMORY Xiaomi MI A3 Xiaomi Redmi Note 12 5G
RAM LPDDR4X SDRAM - 4 GB LPDDR4X SDRAM - 6 GB Xiaomi Redmi Note 12 5G has more RAM than Xiaomi MI A3.
Internal Memory Size (Storage Capacity) 64 GB 128 GB Xiaomi Redmi Note 12 5G has more internal memory than Xiaomi MI A3.
Memory Interface - UFS 2.2
Supported Flash Memory Cards (Expandable Memory) Up to 256 GB microSDHC, microSD, microSDXC - up to 1 TB
CAMERA Xiaomi MI A3 Xiaomi Redmi Note 12 5G
MAIN CAMERA
Number of Main Cameras 3 3
Sensor Resolution 48 Megapixel 48 Megapixel Both phones have the same camera resolution.
Sensor Size 1/2" 1/2.76" Xiaomi Redmi Note 12 5G has better camera sensor size than Xiaomi MI A3.
Sensor Name - Samsung ISOCELL JN1
Lens Aperture F/1.79 F/1.8 Xiaomi MI A3 has better lens aperture than Xiaomi MI A3.
Lens Construction 6-element 5-element
Pixel Size 1.6 μm 0.64 μm Xiaomi MI A3 has larger camera pixel size than Xiaomi Redmi Note 12 5G.
Focus Adjustment Automatic Automatic
Special Effects - Bokeh effect
Camera Modes AI portrait mode Portrait mode
Light Source Flash LED flash
Video Resolutions 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1920 x 1080 (1080p) at 120 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, Slo-mo video 1280 x 720 (720p) at 120 fps 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Functions) Phase Detect Auto-Focus (PDAF), Electronic Image Stabiliser (EIS), 4-in-1 Super Pixel, AI scene detection, AI Triple camera, 27 different scenes 4-in-1 to 1.28μm pixel
SECOND CAMERA
Sensor Resolution (2nd Camera) 8 Megapixel 8 Megapixel Both phones have the same second camera resolution.
Sensor Size (2nd Camera) - 1/4"
Sensor Name (2nd Camera) - Omnivision OV08D sensor
Lens Type (2nd Camera) Ultra wide-angle lens Ultra wide-angle lens
Lens Aperture (2nd Camera) F/2.2 F/2.2 Both phones have the same second camera lens aperture.
Lens Element Qty (2nd Camera) - 5-element
Field of View (2nd Camera) 118 degree(s) 118 degree(s) Both phones have the same second camera lens field of view.
Pixel Size (2nd Camera) - 1.12 μm
THIRD CAMERA
Sensor Resolution (3rd Camera) 2 Megapixel 2 Megapixel Both phones have the same third camera resolution.
Lens Aperture (3rd Camera) - F/2.4
Lens Element Qty (3rd Camera) - 3-element
Camera Functions (3rd Camera) Depth camera Macro camera
FRONT CAMERA
Number of Front Cameras 1 1
Sensor Resolution (Front) 32 Megapixel 13 Megapixel Xiaomi MI A3 has better front camera resolution than Xiaomi Redmi Note 12 5G.
Sensor Size (Front) - 1/3.0"
Lens Aperture (Front) F/2.0 F/2.45 Xiaomi MI A3 has better front lens aperture than Xiaomi MI A3.
Lens Element Qty (Front) 5-element 5-element
Field of View (Front) 79 degree(s) -
Pixel Size (Front) 1.6 μm -
Focus Adjustment Focus free -
Camera Modes (Front) Selfie panorama, AI portrait mode, AI Beautify -
Video Resolutions (Front) 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps
Camera Features (Front) 4-in-1 Super Pixel technology, AI scene detection, 12 different scenes, AI Selfie, Palm shutter, AI face unlock -
BATTERY AND CHARGING Xiaomi MI A3 Xiaomi Redmi Note 12 5G
Battery Capacity (Battery Size) 4030 mAh 5000 mAh Xiaomi Redmi Note 12 5G has larger battery capacity than Xiaomi MI A3.
Fast Charging Technology Qualcomm Quick Charge 3.0 Mi-FC fast charging technology Both phones have fast charging technology.
Talk Time - 2040 minutes
Run Time Details - Talk: up to 2040 min
Gaming: up to 14 hrs
Playback (YouTube): up to 21 hrs
CELLULAR Xiaomi MI A3 Xiaomi Redmi Note 12 5G
Technology WCDMA (UMTS) / GSM WCDMA (UMTS) / GSM
Mobile Broadband Generation 4G 5G Xiaomi Redmi Note 12 5G has more advanced generation mobile network.
Operating System - Android 12
User Interface - MIUI 14
Intelligent Assistant Google Assistant -
Navigation GPS, A-GPS, GLONASS, BeiDou GPS, GLONASS, BeiDou, Galileo
COMMUNICATIONS Xiaomi MI A3 Xiaomi Redmi Note 12 5G
Data Transmission GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE FDD-LTE, TDD-LTE, 5G NR FR1
2G Band 850 GSM, 900 GSM, 1800 GSM, 1900 GSM 850 GSM, 900 GSM, 1800 GSM, 1900 GSM
3G UMTS Band Band 1, Band 2, Band 4, Band 5, Band 8 Band 1, Band 2, Band 4, Band 5, Band 8
3G UMTS Frequency 2100, 1900, 1700, 850, 900 2100, 1900, 1700, 850, 900
4G LTE Band Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40 Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 32, Band 38, Band 40, Band 41
4G LTE Frequency FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300 FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500
5G NR Band - N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n40
5G NR Frequency - FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD 2300
Wireless Interface Infrared (IrDA), IEEE 802.11a/b/g/n/ac IEEE 802.11a/b/g/n/ac
Bluetooth Bluetooth 5.0 Bluetooth 5.0
NFC - Yes Xiaomi Redmi Note 12 5G has NFC reader for mobile payments.
Messaging Services SMS, MMS -
MEDIA Xiaomi MI A3 Xiaomi Redmi Note 12 5G
Supported Digital Audio Standards WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, AMR-WB, AMR-NB -
Supported Digital Video Standards MKV, XviD, H.264, M4V, MPEG4-ASP, MPEG-4 SP, MP4 -
FEATURES Xiaomi MI A3 Xiaomi Redmi Note 12 5G
Phone Functions Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert -
Sensors Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, vibration sensor Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope
Security Devices Fingerprint reader (under display) Face recognition, fingerprint reader (side)
Security Technology - AI face unlock
Additional Phone Features AI face unlock Graphite cooling, IR blaster, coin vibration motor
OTHERS Xiaomi MI A3 Xiaomi Redmi Note 12 5G
Included Accessories Power adapter, SIM card removal tool, USB-C cable, soft case 33W charger
Compliant Standards - IP53, SGS Eye Care Display Certification, SGS Seamless Pro 120Hz Certification
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