Detailed comparison and review of ASUS ZenFone 3 (ZE520KL) and Xiaomi Redmi 9. With our comprehensive overview, you can simply compare sizes, functions, but also other key features of both phones and easily decide which one is the right choice for you. Our goal is to help you identify the main differences between products and find the phone that best fits your needs and expectations.
| DESIGN AND DIMENSIONS | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | ZE520KL | - | |
| Form Factor | Touch | Touch | |
| Height | 146.87 mm | 163.32 mm | Xiaomi Redmi 9 has greater height than ASUS ZenFone 3 (ZE520KL). |
| Width | 73.98 mm | 77.01 mm | Xiaomi Redmi 9 has greater width than ASUS ZenFone 3 (ZE520KL). |
| Depth | 7.69 mm | 9.1 mm | ASUS ZenFone 3 (ZE520KL) is narrower than ASUS ZenFone 3 (ZE520KL). |
| Weight | 144 g | 198 g | ASUS ZenFone 3 (ZE520KL) is lighter than ASUS ZenFone 3 (ZE520KL). |
| Body Colour | Moon white | Gold shimmer | Black sapphire | Carbon grey | |
| Body Material | Metal, glass | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.938 W/kg (body), 0.278 W/kg (head) | 1.065 W/kg (body), 0.789 W/kg (head), 2.309 W/kg (limb) | |
| Integrated Components | FM radio | Ultra-linear speaker | |
| Connector Type | Headset jack - mini-phone 3.5mm USB Type-C - 24 pin USB-C |
USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM | Nano SIM | |
| SIM Card Qty | Dual-SIM (SIM1 and SIM2/MicroSD slots) | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| Display Type | LCD display | - | |
|---|---|---|---|
| Display Technology | Super IPS+ | - | |
| Screen Size (Display Size) | 5.2" | 6.53" | Xiaomi Redmi 9 has larger screen size than ASUS ZenFone 3 (ZE520KL). |
| Screen Resolution (Display Resolution) | 1920 x 1080 pixels | 2340 x 1080 pixels | Xiaomi Redmi 9 has better screen resolution than ASUS ZenFone 3 (ZE520KL). |
| Display Format | Full HD | Full HD+ | |
| Pixel Density | - | 394 ppi | |
| Aspect Ratio | - | 19.5:9 | |
| Max Brightness | 600 cd/m² | 400 cd/m² | ASUS ZenFone 3 (ZE520KL) has better display brightness than Xiaomi Redmi 9. |
| Contrast Ratio | - | 1500:1 | |
| Display Enhancement Technology | Bluelight Filter for Eye Care | Sunlight mode | |
| Display Features | ASUS Glove Touch technology, 2.5D curved glass | Colour temperature adjustment, Dot Drop display, Reading mode 2.0 | |
| Display Protection (Screen Protector) | Fingerprint-resistant oleophobic coating, Corning Gorilla Glass (scratch resistant glass) | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 625 | MediaTek Helio G80 | |
|---|---|---|---|
| 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. |
| 64-bit Architecture | Yes | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 506 | Mali-G52 MC2 |
| MEMORY | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| RAM | 3 GB | LPDDR4X SDRAM - 4 GB | Xiaomi Redmi 9 has more RAM than ASUS ZenFone 3 (ZE520KL). |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 32 GB | 64 GB | Xiaomi Redmi 9 has more internal memory than ASUS ZenFone 3 (ZE520KL). |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 2 TB | microSD |
| CAMERA | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 13 Megapixel | ASUS ZenFone 3 (ZE520KL) has better camera resolution than Xiaomi Redmi 9. |
| Sensor Name | Sony Exmor RS IMX298 sensor | - | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/2.0 | F/2.2 | ASUS ZenFone 3 (ZE520KL) has better lens aperture than ASUS ZenFone 3 (ZE520KL). |
| Lens Construction | 6-element | - | |
| Field of View (FoV) | - | 75.2 degree(s) | |
| Optical Image Stabiliser (OIS) | 4 Stop OIS (Optical Image Stabilisation) | - | ASUS ZenFone 3 (ZE520KL) has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Laser Auto Focus | Yes | - | |
| Special Effects | Depth of field | HDR, Kaleidoscope | |
| HDR Mode | Auto HDR mode | - | |
| Camera Modes | Panorama, Time-lapse mode, night mode, manual mode, Real time beauty mode, super resolution mode, All Smiles mode, Mini mode | Portrait mode | |
| Light Source | Dual LED flash | Flash | |
| Video Resolutions | 3840 x 2160 (4K) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Sapphire crystal lens cover, GIF animation function, Smart Remove, Electronic Image Stabiliser (EIS), Time Rewind, Largan lens | - |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | - | 8 Megapixel | |
|---|---|---|---|
| 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) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (3rd Camera) | - | F/2.4 | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | - | 2 Megapixel | |
|---|---|---|---|
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 8 Megapixel | 8 Megapixel | Both phones have the same front camera resolution. |
| Lens Aperture (Front) | F/2.0 | F/2.0 | Both phones have the same front camera lens aperture. |
| Field of View (Front) | - | 77.8 degree(s) | |
| Focus Adjustment | - | Focus free | |
| Special Effects (Front) | - | HDR | |
| HDR Mode (Front) | Auto HDR mode | - | |
| Camera Modes (Front) | Selfie panorama | Portrait mode | |
| Light Source (Front) | - | Display flash | |
| Camera Features (Front) | PixelMaster camera | Self-timer, Palm shutter |
| BATTERY AND CHARGING | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| Battery Capacity (Battery Size) | 2650 mAh | 5020 mAh | Xiaomi Redmi 9 has larger battery capacity than ASUS ZenFone 3 (ZE520KL). |
|---|---|---|---|
| Talk Time | - | 1860 minutes | |
| Run Time Details | - | Talk: up to 1860 min Continuous navigation: up to 19 hrs Playback (video): up to 19 hrs Playback (Music): up to 185 hrs |
| CELLULAR | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 6.0 (Marshmallow) | - | |
| User Interface | ASUS ZenUI 3.0 | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, DC-HSPA+ | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 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 5, Band 7, Band 8, Band 20 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 40, Band 41 | |
| 4G LTE Frequency | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD | 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, TDD 2500 | |
| Wireless Interface | Infrared (IrDA), IEEE 802.11b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| Supported Digital Audio Standards | - | AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, H.264, ASP, MP4 |
| FEATURES | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| 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, hall sensor, RGB sensor | Accelerometer, ambient light sensor, digital compass, distance sensor, infrared (IR) sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | Infrared remote control, Dual microphones, Hi-Res Audio, Google Drive Storage (100 GB) (free for 2 years), ASUS SonicMaster 3.0 technology, ASUS NoiseZero Talk technology | Fast Charging, AI face unlock |
| OTHERS | ASUS ZenFone 3 (ZE520KL) | Xiaomi Redmi 9 |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C cable, TPU case, 10W charger |
|---|
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