In depth comparison and review of Xiaomi MI A3 and ASUS ROG Phone 3. 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.
| DESIGN AND DIMENSIONS | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | ZS661KS | |
| Form Factor | Touch | Touch | |
| Height | 153.48 mm | 171 mm | ASUS ROG Phone 3 has greater height than Xiaomi MI A3. |
| Width | 71.85 mm | 78 mm | ASUS ROG Phone 3 has greater width than Xiaomi MI A3. |
| Depth | 8.475 mm | 9.85 mm | Xiaomi MI A3 is narrower than Xiaomi MI A3. |
| Weight | 173.8 g | 240 g | Xiaomi MI A3 is lighter than Xiaomi MI A3. |
| Body Colour | Kind of grey | Black glare | |
| Body Material | Corning Gorilla Glass 5 | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 2.34 W/kg (limb), 1.097 W/kg (body), 0.301 W/kg (head) | - | |
| Integrated Components | - | FM radio | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C | |
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | AMOLED | |
| Screen Size (Display Size) | 6.088" | 6.59" | ASUS ROG Phone 3 has larger screen size than Xiaomi MI A3. |
| Screen Resolution (Display Resolution) | 1560 x 720 pixels | 2340 x 1080 pixels | ASUS ROG Phone 3 has better screen resolution than Xiaomi MI A3. |
| Display Format | HD+ | - | |
| Aspect Ratio | 19.5:9 | 19.5:9 | |
| Contrast Ratio | 60000:1 | - | |
| HDR | - | Yes | ASUS ROG Phone 3 has HDR. |
| Display Refresh Rate | - | 144 Hz | |
| Display Features | 2.5D Glass, Dot Drop display | - | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 665 | Qualcomm Snapdragon 865 | |
|---|---|---|---|
| Processor Number | - | SM8250 | |
| Clock Speed | 2 GHz | 2.84 GHz | ASUS ROG Phone 3 has higher clock speed than Xiaomi MI A3. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | - | Yes | ASUS ROG Phone 3 has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 610 | Qualcomm ADRENO 650 |
| MEMORY | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| RAM | LPDDR4X SDRAM - 4 GB | LPDDR4X SDRAM - 8 GB | ASUS ROG Phone 3 has more RAM than Xiaomi MI A3. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 256 GB | ASUS ROG Phone 3 has more internal memory than Xiaomi MI A3. |
| Supported Flash Memory Cards (Expandable Memory) | Up to 256 GB | - |
| CAMERA | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 3 | 2 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 64 Megapixel | ASUS ROG Phone 3 has better camera resolution than Xiaomi MI A3. |
| Sensor Size | 1/2" | - | |
| Lens Aperture | F/1.79 | - | |
| Lens Construction | 6-element | - | |
| Pixel Size | 1.6 μm | - | |
| Focus Adjustment | Automatic | Automatic | |
| Camera Modes | AI portrait mode | - | |
| Light Source | Flash | Dual 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 | - | |
| 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 | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 13 Megapixel | ASUS ROG Phone 3 has better second camera resolution than Xiaomi MI A3. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | - | |
| Field of View (2nd Camera) | 118 degree(s) | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 2 Megapixel | - | |
|---|---|---|---|
| Camera Functions (3rd Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 24 Megapixel | Xiaomi MI A3 has better front camera resolution than ASUS ROG Phone 3. |
| Lens Aperture (Front) | F/2.0 | - | |
| Lens Element Qty (Front) | 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 | - | |
| 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 | ASUS ROG Phone 3 |
|---|
| Battery Capacity (Battery Size) | 4030 mAh | 6000 mAh | ASUS ROG Phone 3 has larger battery capacity than Xiaomi MI A3. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | Qualcomm Quick Charge 4.0, Asus ROG HyperCharge | Both phones have fast charging technology. |
| CELLULAR | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| Technology | WCDMA (UMTS) / GSM | TD-SCDMA / WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | ASUS ROG Phone 3 has more advanced generation mobile network. |
| Operating System | - | Android 10 | |
| User Interface | - | ROG UI | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE, 5G NR | |
|---|---|---|---|
| 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 | - | |
| 3G UMTS Frequency | 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 34, Band 38, Band 39, 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, TDD 2000, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.1 | |
| Bluetooth Profiles | - | HFP, OPP, PAN, A2DP, AVRCP, HID | |
| NFC | - | Yes | ASUS ROG Phone 3 has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| Supported Digital Audio Standards | WAV, AAC, PCM, MP3, FLAC, AAC +, eAAC+, AMR-WB, AMR-NB | Apt-X, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, XviD, H.264, M4V, MPEG4-ASP, MPEG-4 SP, MP4 | - |
| FEATURES | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | 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, gyro sensor, hall sensor, ultrasonic sensor | |
| Security Devices | Fingerprint reader (under display) | Fingerprint reader (under display), face recognition | |
| Additional Phone Features | AI face unlock | MIMO technology, Four microphones with Noise Reduction technology |
| OTHERS | Xiaomi MI A3 | ASUS ROG Phone 3 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, soft case | SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, protective case, 30W fast charger, AeroCooler 3 Fan with USB-C and 3.5mm audio jack |
|---|
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