In depth comparison and review of Xiaomi Redmi 8 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 Redmi 8 | ASUS ROG Phone 3 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | ZS661KS | |
| Form Factor | Touch | Touch | |
| Height | 156.5 mm | 171 mm | ASUS ROG Phone 3 has greater height than Xiaomi Redmi 8. |
| Width | 75.4 mm | 78 mm | ASUS ROG Phone 3 has greater width than Xiaomi Redmi 8. |
| Depth | 9.4 mm | 9.85 mm | Xiaomi Redmi 8 is narrower than Xiaomi Redmi 8. |
| Weight | - | 240 g | |
| Body Colour | Sapphire blue | Black glare | |
| Protection | Splashproof | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.48 W/kg (body), 0.231 W/kg (head), 2.23 W/kg (limb) | - | |
| Integrated Components | FM radio | 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 Redmi 8 | ASUS ROG Phone 3 |
|---|
| Display Type | - | OLED display | |
|---|---|---|---|
| Display Technology | - | AMOLED | |
| Screen Size (Display Size) | 6.22" | 6.59" | ASUS ROG Phone 3 has larger screen size than Xiaomi Redmi 8. |
| Screen Resolution (Display Resolution) | 1520 x 720 pixels | 2340 x 1080 pixels | ASUS ROG Phone 3 has better screen resolution than Xiaomi Redmi 8. |
| Display Format | HD+ | - | |
| Pixel Density | 270 ppi | - | |
| Aspect Ratio | 19:9 | 19.5:9 | |
| Max Brightness | 400 cd/m² | - | |
| Contrast Ratio | 1500:1 | - | |
| HDR | - | Yes | ASUS ROG Phone 3 has HDR. |
| Display Enhancement Technology | Sunlight mode | - | |
| Display Refresh Rate | - | 144 Hz | |
| Display Features | Reading mode, Colour temperature adjustment, night mode, Dot Drop display | - | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | Xiaomi Redmi 8 | ASUS ROG Phone 3 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 439 | Qualcomm Snapdragon 865 | |
|---|---|---|---|
| Processor Number | - | SM8250 | |
| Clock Speed | 2 GHz | 2.84 GHz | ASUS ROG Phone 3 has higher clock speed than Xiaomi Redmi 8. |
| 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 505 | Qualcomm ADRENO 650 |
| MEMORY | Xiaomi Redmi 8 | ASUS ROG Phone 3 |
|---|
| RAM | LPDDR3 SDRAM - 3 GB | LPDDR4X SDRAM - 8 GB | ASUS ROG Phone 3 has more RAM than Xiaomi Redmi 8. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 256 GB | ASUS ROG Phone 3 has more internal memory than Xiaomi Redmi 8. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC | - |
| CAMERA | Xiaomi Redmi 8 | ASUS ROG Phone 3 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 2 | |
|---|---|---|---|
| Sensor Resolution | 12 Megapixel | 64 Megapixel | ASUS ROG Phone 3 has better camera resolution than Xiaomi Redmi 8. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | HDR | - | |
| Camera Modes | AI portrait mode, Landscapes, Night scenes, AI Beautify 4.0 | - | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi 8 has face detection. |
| Light Source | LED flash | Dual LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps, 1280 x 720 (720p) at 60 fps | - | |
| Camera Features (Functions) | Phase Detect Auto-Focus (PDAF), AI Dual camera, AI scene detection | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 2 Megapixel | 13 Megapixel | ASUS ROG Phone 3 has better second camera resolution than Xiaomi Redmi 8. |
|---|
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 24 Megapixel | ASUS ROG Phone 3 has better front camera resolution than Xiaomi Redmi 8. |
| Lens Aperture (Front) | F/2.0 | - | |
| Pixel Size (Front) | 1.12 μm | - | |
| Special Effects (Front) | HDR | - | |
| Camera Modes (Front) | AI portrait mode, AI Beautify 4.0 | - | |
| Face Recognition (Face ID) | Face recognition | - | Xiaomi Redmi 8 has face detection. |
| Light Source (Front) | Display flash | - | |
| Camera Features (Front) | Self-timer | - |
| BATTERY AND CHARGING | Xiaomi Redmi 8 | ASUS ROG Phone 3 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 6000 mAh | ASUS ROG Phone 3 has larger battery capacity than Xiaomi Redmi 8. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 3.0 | Qualcomm Quick Charge 4.0, Asus ROG HyperCharge | Both phones have fast charging technology. |
| Recharge Time (Charging Time) | 2.2 hour(s) | - | |
| Standby Time | 625 hours | - | |
| Talk Time | 1680 minutes | - | |
| Run Time Details | Standby: up to 625 hrs Playback (audio): up to 180.5 hrs Talk: up to 1680 min Playback (video): up to 17 hrs Navigation: up to 16.5 hrs |
- |
| CELLULAR | Xiaomi Redmi 8 | 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 | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | Xiaomi Redmi 8 | ASUS ROG Phone 3 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE, 5G NR | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1900 GSM, 2100 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 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, 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 | IEEE 802.11b/g/n | IEEE 802.11a/b/g/n/ac, IEEE 802.11a/b/g/n/ac/ax | |
| Bluetooth | Bluetooth 4.2 | 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 Redmi 8 | ASUS ROG Phone 3 |
|---|
| Supported Digital Audio Standards | AAC, PCM, MP3, FLAC, AAC +, APE (Monkey's Audio), AMR-WB, AMR-NB | Apt-X, apt-X HD | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, MPEG-4, MPEG4-ASP, MPEG-4 SP, H.264 BP, H.264 MP, H.264 HP | - | |
| Sound Enhancements | Large speaker box | - |
| FEATURES | Xiaomi Redmi 8 | 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, digital compass, distance sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyro sensor, hall sensor, ultrasonic sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display), face recognition | |
| Additional Phone Features | Infrared remote control, notification LED, AI face unlock | MIMO technology, Four microphones with Noise Reduction technology |
| OTHERS | Xiaomi Redmi 8 | ASUS ROG Phone 3 |
|---|
| Included Accessories | SIM card removal tool, USB-C cable, TPU case, 10W charger | 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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