In depth comparison and review of Samsung Galaxy A51 and Xiaomi MI 11. 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 | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-A515F/DSN | - | |
| Form Factor | Touch | Touch | |
| Height | 158.5 mm | 164.3 mm | Xiaomi MI 11 has greater height than Samsung Galaxy A51. |
| Width | 73.6 mm | 74.6 mm | Xiaomi MI 11 has greater width than Samsung Galaxy A51. |
| Depth | 7.9 mm | 8.06 mm | Samsung Galaxy A51 is narrower than Samsung Galaxy A51. |
| Weight | 172 g | 196 g | Samsung Galaxy A51 is lighter than Samsung Galaxy A51. |
| Body Colour | Silver | Prism crush black | Haze crush silver | Prism crush blue | Prism crush white | Midnight grey | Horizon blue | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 0.369 W/kg (head), 1.59 W/kg (body), 2.93 W/kg (limb) | 0.555 W/kg (head), 1.986 W/kg (limb), 0.982 W/kg (body) | |
| Connector Type | USB Type-C - 24 pin USB-C Headset jack - mini-phone 3.5mm |
USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM | - | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Super AMOLED | AMOLED | |
| Screen Size (Display Size) | 6.5" | 6.81" | Xiaomi MI 11 has larger screen size than Samsung Galaxy A51. |
| Screen Resolution (Display Resolution) | 2400 x 1080 pixels | 3200 x 1440 pixels | Xiaomi MI 11 has better screen resolution than Samsung Galaxy A51. |
| Display Format | Full HD+ | WQHD+ | |
| Pixel Density | 408 ppi | 515 ppi | Xiaomi MI 11 has better pixel density than Samsung Galaxy A51. |
| Aspect Ratio | - | 20:9 | |
| Max Brightness | - | 1500 cd/m² | |
| Colour Depth | 16.7 million colours | 1.07 billion colours | Xiaomi MI 11 has better colour depth than Samsung Galaxy A51. |
| Contrast Ratio | - | 5000000:1 | |
| HDR | - | Yes | Xiaomi MI 11 has HDR. |
| HDR Technology | - | HDR10+ | |
| Display Enhancement Technology | - | Sunlight mode 3.0 | |
| Display Refresh Rate | - | 120 Hz | |
| Touch Sampling Rate | - | 480 Hz | |
| Display Features | Edge-to-Edge screen, Infinity O display | DCI-P3 Wide colour gamut, Dot Display, True Colour, Reading mode 3, AdaptiveSync technology, Quad-curved display, AI display, DisplayMate A+, hardware-level mistouch sensor, Super Resolution technology | |
| Display Protection (Screen Protector) | - | Corning Gorilla Glass Victus (scratch resistant glass) |
| PROCESSOR | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| Processor Type (CPU) | Samsung Exynos 9611 | Qualcomm Snapdragon 888 | |
|---|---|---|---|
| Clock Speed | 2.3 GHz | 2.84 GHz | Xiaomi MI 11 has higher clock speed than Samsung Galaxy A51. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| 64-bit Architecture | Yes | - | Samsung Galaxy A51 has 64-bit architecture. |
| Graphics System (GPU) | - | Qualcomm ADRENO 660 |
| MEMORY | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| RAM | 4 GB | LPDDR5 SDRAM - 8 GB | Xiaomi MI 11 has more RAM than Samsung Galaxy A51. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 128 GB | Both phones have the same internal memory capacity. |
| User Memory | 107 GB | - | |
| Memory Interface | - | UFS 3.1 | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 512 GB | - |
| CAMERA | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 4 | |
|---|---|---|---|
| Sensor Resolution | 48 Megapixel | 108 Megapixel | Xiaomi MI 11 has better camera resolution than Samsung Galaxy A51. |
| Sensor Size | - | 1/1.33" | |
| Lens Aperture | F/2.0 | F/1.85 | Xiaomi MI 11 has better lens aperture than Samsung Galaxy A51. |
| Pixel Size | - | 0.8 μm | |
| Optical Image Stabiliser (OIS) | - | Optical Image Stabiliser (OIS) | Xiaomi MI 11 has optical stabilisation. |
| Focus Adjustment | Automatic | - | |
| Digital Zoom | 8x | - | |
| Special Effects | - | Cinematic video filters | |
| HDR Mode | - | HDR10+ video | |
| Camera Modes | Slow motion mode, Live Focus mode | Slow Shutter, Night Mode 2.0, AI Erase 2.0, Ultra Night Video, One-Click AI Cinema, Magic Zoom, Time Freeze, Night Time-lapse, Parallel World, Freeze Frame Video, Pro Time-lapse | |
| Light Source | LED flash | LED flash | |
| Video Resolutions | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps | 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, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 7680 x 4320 (8K) at 24 fps, 7680 x 4320 (8K) at 30fps | |
| Camera Features (Functions) | AR sticker, background blur, Scene Optimiser, Eye blink, Flaw detection, Stamp, Facial blur | 4-in-1 Super Pixel |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 13 Megapixel | Xiaomi MI 11 has better second camera resolution than Samsung Galaxy A51. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | Samsung Galaxy A51 has better second camera lens aperture than Samsung Galaxy A51. |
| Field of View (2nd Camera) | 123 degree(s) | 123 degree(s) | Both phones have the same second camera lens field of view. |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 5 Megapixel | 5 Megapixel | Both phones have the same third camera resolution. |
|---|---|---|---|
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Camera Functions (3rd Camera) | Macro camera | - | |
| Camera Features (3rd Camera) | - | AF (3cm-10cm) |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 5 Megapixel | - | |
|---|---|---|---|
| Lens Type (4th Camera) | Telephoto lens | Tele-macro lens | |
| Lens Aperture (4th Camera) | F/2.2 | - | |
| Camera Functions (4th Camera) | Depth camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 20 Megapixel | Samsung Galaxy A51 has better front camera resolution than Xiaomi MI 11. |
| Lens Aperture (Front) | F/2.2 | F/2.2 | Both phones have the same front camera lens aperture. |
| Pixel Size (Front) | - | 0.8 μm | |
| Focus Adjustment | Focus free | - | |
| Special Effects (Front) | - | HDR | |
| Camera Modes (Front) | - | Night Selfie | |
| Video Resolutions (Front) | - | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, Slo-mo video 1280 x 720 (720p) at 120 fps | |
| Camera Features (Front) | - | 4-in-1 Super Pixel technology |
| BATTERY AND CHARGING | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| Battery Capacity (Battery Size) | 4000 mAh | 4600 mAh | Xiaomi MI 11 has larger battery capacity than Samsung Galaxy A51. |
|---|---|---|---|
| Recharge Time (Charging Time) | - | 45 min | |
| Wireless Charging | - | Yes | Xiaomi MI 11 can be charged wirelessly. |
| Talk Time | 1920 minutes | - | |
| Run Time Details | Active online usage (LTE): up to 15 hrs Active online usage (Wi-Fi): up to 16 hrs Playback (video): up to 20 hrs Playback (audio): up to 87 hrs Talk (4G): up to 1920 min |
- | |
| Battery Technology | Lithium Ion | - |
| CELLULAR | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Xiaomi MI 11 has more advanced generation mobile network. |
| Operating System | Android 10 | Android 11 | |
| User Interface | One UI | MIUI 12 | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | - | Google Pay | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | FDD-LTE, TDD-LTE, 5G NR FR1 | |
|---|---|---|---|
| 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 | 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 17, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41, Band 66 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 28, Band 32, Band 38, Band 40, Band 41, Band 42, Band 66 | |
| 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 700b, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1900 PCS, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 700b, FDD 800 DD, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, TDD 3500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | - | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n79 | |
| 5G NR Frequency | - | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, TDD TD 3700, TDD TD 3500, TDD TD 4500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+ | IEEE 802.11a/b/g/n/ac/ax, Infrared (IR) | |
| Bluetooth | Bluetooth 5.0 LE | Bluetooth 5.2 | |
| Bluetooth Profiles | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, SAP, PBAP, MAP, HOGP | - | |
| NFC | Yes | - | Samsung Galaxy A51 has NFC reader for mobile payments. |
| Modem | - | Snapdragon X60 5G | |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, M4A, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, MID | AAC, LDAC, LHDC | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | - | |
| Sound Enhancements | - | Hi-Res audio certified |
| FEATURES | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| 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, gyro sensor, hall sensor, geomagnetic sensor | Accelerometer, proximity sensor, digital compass, gyroscope, 360° ambient light sensor 2.0 | |
| Security Devices | Fingerprint reader (under display) | Fingerprint reader (under display with heart rate monitoring), face recognition | |
| Additional Phone Features | Fast Charging, Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines | MIMO technology, AI face unlock, linear motor, 10W reverse wireless charging, dual stereo speakers tuned by Harman Kardon, X-axis linear vibration motor, Voice isolation, Qualcomm 6th generation AI Engine |
| OTHERS | Samsung Galaxy A51 | Xiaomi MI 11 |
|---|
| Included Accessories | Power adapter | SIM card removal tool, USB-C to 3.5 jack adapter, USB-C cable, soft case, 55W GaN power adapter | |
|---|---|---|---|
| Compliant Standards | - | SGS Eye Care Display Certification |
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