In depth comparison and review of Google Pixel 4a and Xiaomi Redmi 9. 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 | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | G025J | - | |
| Form Factor | Touch | Touch | |
| Height | 144 mm | 163.32 mm | Xiaomi Redmi 9 has greater height than Google Pixel 4a. |
| Width | 69.4 mm | 77.01 mm | Xiaomi Redmi 9 has greater width than Google Pixel 4a. |
| Depth | 8.2 mm | 9.1 mm | Google Pixel 4a is narrower than Google Pixel 4a. |
| Weight | 143 g | 198 g | Google Pixel 4a is lighter than Google Pixel 4a. |
| Body Colour | Just black | Carbon grey | |
| Body Material | Polycarbonate | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.19 W/kg (body), 1.18 W/kg (head) | 1.065 W/kg (body), 0.789 W/kg (head), 2.309 W/kg (limb) | |
| Integrated Components | - | Ultra-linear speaker | |
| 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, Electronic SIM card (e-SIM) | Nano SIM | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| Display Type | OLED display | - | |
|---|---|---|---|
| Display Technology | OLED | - | |
| Screen Size (Display Size) | 5.8" | 6.53" | Xiaomi Redmi 9 has larger screen size than Google Pixel 4a. |
| Screen Resolution (Display Resolution) | 2340 x 1080 pixels | 2340 x 1080 pixels | Both phones have the same screen resolution. |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | 443 ppi | 394 ppi | Google Pixel 4a has better pixel density than Xiaomi Redmi 9. |
| Aspect Ratio | 19.5:9 | 19.5:9 | |
| Max Brightness | - | 400 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | 100000:1 | 1500:1 | Google Pixel 4a has better display contrast ratio than Xiaomi Redmi 9. |
| HDR | Yes | - | Google Pixel 4a has HDR. |
| Display Enhancement Technology | - | Sunlight mode | |
| Display Features | Always-on display, Now Playing, True black level, display with transmissive hole | Colour temperature adjustment, Dot Drop display, Reading mode 2.0 | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 3 (scratch resistant glass) | Corning Gorilla Glass 3 (scratch resistant glass) |
| PROCESSOR | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 730 | MediaTek Helio G80 | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | 2 GHz | Google Pixel 4a has higher clock speed than Xiaomi Redmi 9. |
| 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 618 | Mali-G52 MC2 |
| MEMORY | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | LPDDR4X SDRAM - 4 GB | Google Pixel 4a has more RAM than Xiaomi Redmi 9. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 64 GB | Google Pixel 4a has more internal memory than Xiaomi Redmi 9. |
| Supported Flash Memory Cards (Expandable Memory) | - | microSD |
| CAMERA | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 4 | |
|---|---|---|---|
| Sensor Resolution | 12.2 Megapixel | 13 Megapixel | Xiaomi Redmi 9 has better camera resolution than Google Pixel 4a. |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.7 | F/2.2 | Google Pixel 4a has better lens aperture than Google Pixel 4a. |
| Field of View (FoV) | 77 degree(s) | 75.2 degree(s) | Google Pixel 4a has larger lens field of view than Xiaomi Redmi 9. |
| Pixel Size | 1.4 μm | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Google Pixel 4a has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Special Effects | Blur | HDR, Kaleidoscope | |
| HDR Mode | HDR+ | - | |
| Camera Modes | Portrait mode, Night Sight | Portrait mode | |
| Light Source | LED flash | Flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 1280 x 720 (720p) at 60 fps, 1920 x 1080 (1080p) at 120 fps, 1280 x 720 (720p) at 240 fps | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | |
| Camera Features (Functions) | Electronic Image Stabiliser (EIS), Dual Pixel Phase Detect Auto-Focus (PDAF), Share in a snap | - |
| 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) | 84 degree(s) | 77.8 degree(s) | Google Pixel 4a has larger front lens field of view than Xiaomi Redmi 9. |
| Pixel Size (Front) | 1.12 μm | - | |
| Focus Adjustment | Focus free | Focus free | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Portrait mode | |
| Light Source (Front) | - | Display flash | |
| Video Resolutions (Front) | 864 x 480, 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | - | |
| Camera Features (Front) | - | Self-timer, Palm shutter |
| BATTERY AND CHARGING | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| Battery Capacity (Battery Size) | 3140 mAh | 5020 mAh | Xiaomi Redmi 9 has larger battery capacity than Google Pixel 4a. |
|---|---|---|---|
| Fast Charging Technology | Power Delivery 2.0 | - | Google Pixel 4a has fast charging technology. |
| 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 | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 10 | - | |
| Intelligent Assistant | Google Assistant | - | |
| Navigation | GPS, GLONASS, Galileo, QZSS | GPS, A-GPS, GLONASS, BeiDou |
| COMMUNICATIONS | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, VoLTE, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X, 1900 CDMA2000 1X | - | |
| 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 12, Band 13, Band 14, Band 17, Band 18, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 38, Band 39, Band 40, Band 41, Band 66, Band 71 | 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 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700c, FDD 700 PS, FDD 700b, FDD 800 lower, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3, FDD 600 | 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 | IEEE 802.11a/b/g/n/ac | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.0 | |
| Bluetooth Profiles | A2DP | - | |
| NFC | Yes | - | Google Pixel 4a has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| Supported Digital Audio Standards | AAC, apt-X, LDAC, apt-X HD | AAC, PCM, MP3, FLAC, AAC +, eAAC+, APE (Monkey's Audio), AMR-WB, AMR-NB | |
|---|---|---|---|
| Supported Digital Video Standards | - | MKV, H.264, ASP, MP4 |
| FEATURES | Google Pixel 4a | 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, barometer, magnetometer, gyro sensor | Accelerometer, ambient light sensor, digital compass, distance sensor, infrared (IR) sensor | |
| Security Devices | Fingerprint reader | Face recognition, fingerprint reader | |
| Additional Phone Features | Dual microphones, MIMO technology, Android Sensor Hub, Noise suppression, ARCore, Google Lens, Titan M Security Module, Pixel Imprint sensor, 3 years of security and OS updates, Google Cast | Fast Charging, AI face unlock |
| OTHERS | Google Pixel 4a | Xiaomi Redmi 9 |
|---|
| Included Accessories | SIM card removal tool, Quick switch adapter, 18W USB-C power adapter, USB-C to USB-C cable (1 m) | SIM card removal tool, USB-C cable, TPU case, 10W charger | |
|---|---|---|---|
| Compliant Standards | HAC (Hearing Aid Compatible) | - |
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