Side by side comparison and review of OPPO R11s and Samsung Galaxy A51 5G. 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 | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A516B/DS | |
| Form Factor | Touch | Touch | |
| Height | 155.1 mm | 158.9 mm | Samsung Galaxy A51 5G has greater height than OPPO R11s. |
| Width | 75.5 mm | 73.6 mm | OPPO R11s has greater width than Samsung Galaxy A51 5G. |
| Depth | 7.1 mm | 8.7 mm | OPPO R11s is narrower than OPPO R11s. |
| Weight | 153 g | 187 g | OPPO R11s is lighter than OPPO R11s. |
| Body Colour | Champagne | Prism cube black | Prism cube white | |
| Body Material | Aluminium | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | - | 1.555 W/kg (body), 0.496 W/kg (head) | |
| Connector Type | Micro-USB - 5 pin Micro-USB Type B | 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 | Dual-SIM | |
| SIM Card Configuration Details | - | Nano SIM + nano SIM/microSD |
| DISPLAY | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED | Infinity-O Super AMOLED | |
| Screen Size (Display Size) | 6.01" | 6.5" | Samsung Galaxy A51 5G has larger screen size than OPPO R11s. |
| Screen Resolution (Display Resolution) | 2160 x 1080 pixels | 2400 x 1080 pixels | Samsung Galaxy A51 5G has better screen resolution than OPPO R11s. |
| Display Format | - | Full HD+ | |
| Aspect Ratio | 18:9 | - | |
| Colour Depth | 16.7 million colours | 16.7 million colours | Both phones have the same color depth. |
| Display Features | - | Edge-to-Edge screen |
| PROCESSOR | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 660 | - | |
|---|---|---|---|
| Clock Speed | 2.2 GHz | 2.2 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 | Samsung Galaxy A51 5G has 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 512 | - |
| MEMORY | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| RAM | 4 GB | 6 GB | Samsung Galaxy A51 5G has more RAM than OPPO R11s. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Samsung Galaxy A51 5G has more internal memory than OPPO R11s. |
| User Memory | - | 105.3 GB | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 256 GB | microSDHC, microSDXC - up to 1 TB |
| CAMERA | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 20 Megapixel | 48 Megapixel | Samsung Galaxy A51 5G has better camera resolution than OPPO R11s. |
| Lens Aperture | F/1.7 | F/2.0 | OPPO R11s has better lens aperture than OPPO R11s. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 8x | |
| Special Effects | Bokeh effect | Bokeh effect | |
| Camera Modes | - | Slow motion video | |
| 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, Slo-mo video 1280 x 720 (720p) at 480 fps | |
| Camera Features (Functions) | OPPO Portrait Lab | Live Focus, background blur |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 16 Megapixel | 12 Megapixel | OPPO R11s has better second camera resolution than Samsung Galaxy A51 5G. |
|---|---|---|---|
| Lens Type (2nd Camera) | - | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | - | F/2.2 | |
| Field of View (2nd Camera) | - | 123 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) | - | 5 Megapixel | |
|---|---|---|---|
| Lens Aperture (4th Camera) | - | F/2.2 | |
| Camera Functions (4th Camera) | - | Depth camera |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 20 Megapixel | 32 Megapixel | Samsung Galaxy A51 5G has better front camera resolution than OPPO R11s. |
| Lens Aperture (Front) | F/2.0 | F/2.2 | OPPO R11s has better front lens aperture than OPPO R11s. |
| Focus Adjustment | - | Focus free | |
| Camera Features (Front) | A.I. beauty recognition technology | - |
| BATTERY AND CHARGING | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| Battery Capacity (Battery Size) | 3205 mAh | 4500 mAh | Samsung Galaxy A51 5G has larger battery capacity than OPPO R11s. |
|---|---|---|---|
| Fast Charging Technology | VOOC Flash Charge technology | - | OPPO R11s has fast charging technology. |
| Talk Time | - | 1380 minutes | |
| Run Time Details | - | Talk (4G): up to 1380 min Active online usage (LTE): up to 16 hrs Active online usage (Wi-Fi): up to 17 hrs Playback (video): up to 19 hrs Playback (audio): up to 86 hrs |
| CELLULAR | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 5G | Samsung Galaxy A51 5G has more advanced generation mobile network. |
| Operating System | ColorOS 3.2 (based on Android 7.1) | - | |
| Intelligent Assistant | - | Bixby | |
| Navigation | GPS | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, 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 5, Band 8 | |
| 3G UMTS Frequency | - | 2100, 1900, 850, 900 | |
| 4G LTE Band | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 20, Band 28, Band 38, Band 39, Band 40, Band 41 | Band 1, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, 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 800 DD, FDD 700 APT, TDD 2600, TDD 1900, TDD 2300, TDD 2500 | FDD 2100, FDD 1800+, FDD 1700 - 2110 AWS, FDD 850, FDD 2600, FDD 900, FDD 700a, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| 5G NR Band | - | N41, n78 | |
| 5G NR Frequency | - | TDD TD 2500, TDD TD 3500 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, ANT+ | |
| Bluetooth | Bluetooth 4.2 | Bluetooth 5.0 | |
| NFC | - | Yes | Samsung Galaxy A51 5G has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| 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, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 |
| FEATURES | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| 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 | Ambient light sensor, proximity sensor, digital compass, gyro sensor, G-sensor | Accelerometer, ambient light sensor, gyro sensor, hall sensor, geomagnetic sensor | |
| Security Devices | Face recognition | Fingerprint reader (under display) | |
| Security Technology | A.I. face recognition | - | |
| Additional Phone Features | MIMO technology, Smart Power Saving Mode, Split Screen, OPPO Share | Fast Charging, Samsung KNOX, Bixby Vision, Bixby Routines, Virtual Proximity Sensing |
| OTHERS | OPPO R11s | Samsung Galaxy A51 5G |
|---|
| Included Accessories | Headset, carrying case, USB cable, power adapter, SIM card removal tool | Power adapter |
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