Side by side comparison and review of OnePlus 6 and Samsung Galaxy A51. 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 | OnePlus 6 | Samsung Galaxy A51 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | - | SM-A515F/DSN | |
| Form Factor | Touch | Touch | |
| Height | 155.7 mm | 158.5 mm | Samsung Galaxy A51 has greater height than OnePlus 6. |
| Width | 75.4 mm | 73.6 mm | OnePlus 6 has greater width than Samsung Galaxy A51. |
| Depth | 7.75 mm | 7.9 mm | OnePlus 6 is narrower than OnePlus 6. |
| Weight | 177 g | 172 g | Samsung Galaxy A51 is lighter than OnePlus 6. |
| Body Colour | Mirror black | Silver | Prism crush black | Haze crush silver | Prism crush blue | Prism crush white | |
| Body Material | Glass | - | |
| Waterproof (Water-resistant) | - | - | |
| SAR Value | 1.38 W/kg (body), 1.33 W/kg (head) | 0.369 W/kg (head), 1.59 W/kg (body), 2.93 W/kg (limb) | |
| 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 | Dual-SIM |
| DISPLAY | OnePlus 6 | Samsung Galaxy A51 |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | Optic AMOLED | Super AMOLED | |
| Screen Size (Display Size) | 6.28" | 6.5" | Samsung Galaxy A51 has larger screen size than OnePlus 6. |
| Screen Resolution (Display Resolution) | 2280 x 1080 pixels | 2400 x 1080 pixels | Samsung Galaxy A51 has better screen resolution than OnePlus 6. |
| Display Format | - | Full HD+ | |
| Pixel Density | - | 408 ppi | |
| Aspect Ratio | 19:9 | - | |
| Colour Depth | - | 16.7 million colours | |
| Display Features | 2.5D Glass, Reading mode, night mode | Edge-to-Edge screen, Infinity O display | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | - |
| PROCESSOR | OnePlus 6 | Samsung Galaxy A51 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 845 | Samsung Exynos 9611 | |
|---|---|---|---|
| Clock Speed | 2.8 GHz | 2.3 GHz | OnePlus 6 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 | Yes | Both phones have 64-bit architecture. |
| Graphics System (GPU) | Qualcomm ADRENO 630 | - |
| MEMORY | OnePlus 6 | Samsung Galaxy A51 |
|---|
| RAM | LPDDR4X SDRAM - 6 GB | 4 GB | OnePlus 6 has more RAM than Samsung Galaxy A51. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 64 GB | 128 GB | Samsung Galaxy A51 has more internal memory than OnePlus 6. |
| User Memory | - | 107 GB | |
| Supported Flash Memory Cards (Expandable Memory) | - | microSDHC, microSDXC - up to 512 GB |
| CAMERA | OnePlus 6 | Samsung Galaxy A51 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 2 | 4 | |
|---|---|---|---|
| Sensor Resolution | 16 Megapixel | 48 Megapixel | Samsung Galaxy A51 has better camera resolution than OnePlus 6. |
| Sensor Name | Sony Exmor RS IMX519 sensor | - | |
| Lens Aperture | F/1.7 | F/2.0 | OnePlus 6 has better lens aperture than OnePlus 6. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | OnePlus 6 has optical stabilisation. |
| Focus Adjustment | Automatic | Automatic | |
| Digital Zoom | - | 8x | |
| Special Effects | Portrait, HDR | - | |
| Camera Modes | Panorama, Time-lapse mode, Pro mode, portrait mode | Slow motion mode, Live Focus mode | |
| Light Source | Dual LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 480 fps | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 30 fps | |
| Camera Features (Functions) | Electronic Image Stabiliser (EIS), RAW image capture, Detect Contrast Auto-Focus (DCAF), Dynamic Denoise, Clear Image | AR sticker, background blur, Scene Optimiser, Eye blink, Flaw detection, Stamp, Facial blur |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 20 Megapixel | 12 Megapixel | OnePlus 6 has better second camera resolution than Samsung Galaxy A51. |
|---|---|---|---|
| Sensor Name (2nd Camera) | Sony Exmor RS IMX376K sensor | - | |
| Lens Type (2nd Camera) | Wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/1.7 | F/2.2 | OnePlus 6 has better second camera lens aperture than OnePlus 6. |
| Field of View (2nd Camera) | - | 123 degree(s) | |
| Camera Features (2nd Camera) | Phase Detect Auto-Focus (PDAF) | - |
| 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 Type (4th Camera) | - | Telephoto 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) | 16 Megapixel | 32 Megapixel | Samsung Galaxy A51 has better front camera resolution than OnePlus 6. |
| Sensor Name (Front) | Sony Exmor RS IMX371 sensor | - | |
| Lens Aperture (Front) | F/2.0 | F/2.2 | OnePlus 6 has better front lens aperture than OnePlus 6. |
| Focus Adjustment | Focus free | Focus free | |
| Special Effects (Front) | HDR | - | |
| Camera Modes (Front) | Time-lapse mode, Face Beauty | - | |
| Face Recognition (Face ID) | Smile Capture | - | OnePlus 6 has face detection. |
| Light Source (Front) | Display flash | - | |
| Video Resolutions (Front) | 1920 x 1080 (1080p) at 30 fps, 1280 x 720 (720p) at 30 fps | - | |
| Camera Features (Front) | Electronic Image Stabiliser (EIS) | - |
| BATTERY AND CHARGING | OnePlus 6 | Samsung Galaxy A51 |
|---|
| Battery Capacity (Battery Size) | 3300 mAh | 4000 mAh | Samsung Galaxy A51 has larger battery capacity than OnePlus 6. |
|---|---|---|---|
| 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 | OnePlus 6 | Samsung Galaxy A51 |
|---|
| Technology | CDMA2000 1X / GSM / WCDMA (UMTS) / TD-SCDMA | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 4G | 4G | Both phones have the same mobile network generation. |
| Operating System | OxygenOS (based on Android Oreo) | Android 10 | |
| User Interface | - | One UI | |
| Intelligent Assistant | - | Bixby | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | OnePlus 6 | Samsung Galaxy A51 |
|---|
| Data Transmission | GPRS, EDGE, EV-DO, HSDPA, HSUPA, HSPA+, LTE, FDD-LTE, TDD-LTE | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM, 800 CDMA2000 1X | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| 3G UMTS Band | Band 1, Band 2, Band 4, Band 5, Band 8, Band 9, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900, 1700, 800 | 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 17, Band 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 29, Band 30, Band 32, Band 34, 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 12, Band 13, Band 17, Band 20, Band 26, Band 28, Band 38, Band 40, Band 41, 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 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 700d, FDD 2300 WCS, FDD 1500 L, TDD 2000, 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 700a, FDD 700c, FDD 700b, FDD 800 DD, FDD 850+, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac | IEEE 802.11a/b/g/n/ac, ANT+ | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 LE | |
| Bluetooth Profiles | - | HFP, HSP, OPP, PAN, A2DP, AVRCP, HID, SAP, PBAP, MAP, HOGP | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | SMS, MMS |
| MEDIA | OnePlus 6 | Samsung Galaxy A51 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, MP3, FLAC, AAC +, OGG, APE (Monkey's Audio), M4A, apt-X, IMY, MID, AMR-WB, AMR-NB, apt-X HD | 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, MOV, MPEG-4, WMV, 3GP, TS, WebM, HEVC, H.265 | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | Dirac Power Sound technology, Dirac HD Sound | - |
| FEATURES | OnePlus 6 | Samsung Galaxy A51 |
|---|
| 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, proximity sensor, gyro sensor, hall sensor, geomagnetic sensor | |
| Security Devices | Face recognition, fingerprint reader | Fingerprint reader (under display) | |
| Additional Phone Features | Noise Cancellation Technology, MIMO technology, Android Sensor Hub, RGB LED notification light | Fast Charging, Samsung KNOX, Bixby Vision, Game Booster, Bixby Routines |
| OTHERS | OnePlus 6 | Samsung Galaxy A51 |
|---|
| Included Accessories | SIM card removal tool, screen protector (pre-applied), translucent case, fast charge USB-C cable, fast charge power adapter | Power adapter |
|---|
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