Side by side comparison and review of Samsung Galaxy A9 (2018) and Xiaomi Redmi Note 11. Compare sizes, cameras, batteries, memory capacities and other key specifications and features to simplify the choice of your perfect phone. Our goal is to make it easier for you to decide on the phone that will best meet your expectations by revealing the main differences between the products.
| DESIGN AND DIMENSIONS | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A920F/DS | - | |
| Form Factor | Touch | Touch | |
| Height | 162.5 mm | 159.87 mm | Samsung Galaxy A9 (2018) has greater height than Xiaomi Redmi Note 11. |
| Width | 77 mm | 73.87 mm | Samsung Galaxy A9 (2018) has greater width than Xiaomi Redmi Note 11. |
| Depth | 7.8 mm | 8.09 mm | Samsung Galaxy A9 (2018) is narrower than Samsung Galaxy A9 (2018). |
| Weight | 183 g | 179 g | Xiaomi Redmi Note 11 is lighter than Samsung Galaxy A9 (2018). |
| Body Colour | Lemonade blue | Caviar black | Bubblegum pink | Twilight blue | Blue star | Graphite grey | |
| Protection | - | Dustproof, splashproof | |
| Waterproof (Water-resistant) | - | - | |
| IP rating | - | IP53 | |
| SAR Value | 1.587 W/kg (body), 0.351 W/kg (head) | 0.989 W/kg (body), 0.596 W/kg (head), 1.996 W/kg (limb) | |
| Connector Type | 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 | - | |
| SIM Card Qty | Single-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Super AMOLED | AMOLED | |
| Screen Size (Display Size) | 6.3" | 6.43" | Xiaomi Redmi Note 11 has larger screen size than Samsung Galaxy A9 (2018). |
| Screen Resolution (Display Resolution) | 2220 x 1080 pixels | 2400 x 1080 pixels | Xiaomi Redmi Note 11 has better screen resolution than Samsung Galaxy A9 (2018). |
| Display Format | Full HD+ | Full HD+ | |
| Pixel Density | - | 409 ppi | |
| Max Brightness | - | 1000 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 4500000:1 | |
| Display Enhancement Technology | - | Sunlight mode, Reading mode 3.0 | |
| Display Refresh Rate | - | 90 Hz | |
| Touch Sampling Rate | - | 180 Hz | |
| Display Features | Always-on display | DCI-P3 Wide colour gamut, Dot Display |
| PROCESSOR | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 660 | Qualcomm Snapdragon 680 | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | 2.4 GHz | Xiaomi Redmi Note 11 has higher clock speed than Samsung Galaxy A9 (2018). |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Samsung Galaxy A9 (2018) has 64-bit architecture. |
| Graphics System (GPU) | - | Qualcomm ADRENO 610 |
| MEMORY | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| RAM | 6 GB | LPDDR4X SDRAM - 4 GB | Samsung Galaxy A9 (2018) has more RAM than Xiaomi Redmi Note 11. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| Memory Interface | - | UFS 2.2 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | microSDHC, microSD, microSDXC - up to 1 TB |
| CAMERA | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 4 | |
|---|---|---|---|
| Sensor Resolution | 24 Megapixel | 50 Megapixel | Xiaomi Redmi Note 11 has better camera resolution than Samsung Galaxy A9 (2018). |
| Lens Aperture | F/1.7 | F/1.8 | Samsung Galaxy A9 (2018) has better lens aperture than Samsung Galaxy A9 (2018). |
| Focus Adjustment | Automatic | Automatic | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | - | 1920 x 1080 (1080p) at 30 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | - | AI Quad camera |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 8 Megapixel | 8 Megapixel | Both phones have the same second camera resolution. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.4 | F/2.2 | Xiaomi Redmi Note 11 has better second camera lens aperture than Samsung Galaxy A9 (2018). |
| Field of View (2nd Camera) | - | 118 degree(s) |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 10 Megapixel | 2 Megapixel | Samsung Galaxy A9 (2018) has higher resolution third camera than Xiaomi Redmi Note 11. |
|---|---|---|---|
| Lens Type (3rd Camera) | Telephoto lens | - | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Optical Zoom | 2x | - | |
| Camera Functions (3rd Camera) | - | Macro camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 5 Megapixel | 2 Megapixel | Samsung Galaxy A9 (2018) has higher resolution fourth camera than Xiaomi Redmi Note 11. |
|---|---|---|---|
| Lens Aperture (4th Camera) | F/2.2 | F/2.4 | Samsung Galaxy A9 (2018) has better fourth camera lens aperture than Samsung Galaxy A9 (2018). |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 24 Megapixel | 13 Megapixel | Samsung Galaxy A9 (2018) has better front camera resolution than Xiaomi Redmi Note 11. |
| Lens Aperture (Front) | F/2.0 | F/2.4 | Samsung Galaxy A9 (2018) has better front lens aperture than Samsung Galaxy A9 (2018). |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps |
| BATTERY AND CHARGING | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| Battery Capacity (Battery Size) | 3800 mAh | 5000 mAh | Xiaomi Redmi Note 11 has larger battery capacity than Samsung Galaxy A9 (2018). |
|---|---|---|---|
| Fast Charging Technology | - | Pro fast charging | Xiaomi Redmi Note 11 has fast charging technology. |
| Talk Time | - | 2580 minutes | |
| Run Time Details | - | Talk: up to 2580 min Playback (video): up to 22 hrs Playback (audio): up to 215 hrs |
| CELLULAR | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | Android 8.0 Oreo | Android 11 | |
| User Interface | - | MIUI 13 | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, LTE | FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 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 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, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+/ANT | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | - | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MPEG-4, WMV, ASF, 3GP, M4V, WebM, 3G2 | - | |
| Sound Enhancements | - | Hi-Res audio certified |
| FEATURES | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor | Accelerometer, ambient light sensor, proximity sensor, digital compass, gyroscope | |
| Security Devices | Face recognition, fingerprint reader | Face recognition, fingerprint reader (side) | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | MIMO technology, Bixby Vision | Z-axis linear vibration motor, dual stereo speakers, IR blaster, write booster |
| OTHERS | Samsung Galaxy A9 (2018) | Xiaomi Redmi Note 11 |
|---|
| Included Accessories | Power adapter | Power adapter, SIM card removal tool, USB-C cable, protective case | |
|---|---|---|---|
| Compliant Standards | - | IP53, TUV SUD, SGS, IEC 60529 |
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