In depth comparison and review of Samsung Galaxy S20 Ultra 5G and OPPO A15. 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 S20 Ultra 5G | OPPO A15 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | SM-G988B/DS | CPH2185 | |
| Form Factor | Touch | Touch | |
| Height | 166.9 mm | 164 mm | Samsung Galaxy S20 Ultra 5G has greater height than OPPO A15. |
| Width | 76 mm | 75.4 mm | Samsung Galaxy S20 Ultra 5G has greater width than OPPO A15. |
| Depth | 8.8 mm | 7.9 mm | OPPO A15 is narrower than Samsung Galaxy S20 Ultra 5G. |
| Weight | 220 g | 175 g | OPPO A15 is lighter than Samsung Galaxy S20 Ultra 5G. |
| Body Colour | Cosmic black | Cosmic grey | Cloud white | Dynamic black | |
| Protection | Dustproof, splashproof, water-resistant | - | |
| Waterproof (Water-resistant) | Yes | - | Samsung Galaxy S20 Ultra 5G is waterproof. |
| IP rating | IP68 | - | |
| SAR Value | 1.557 W/kg (body), 0.66 W/kg (head) | 1.16 W/kg (body), 2.77 W/kg (limb), 0.92 W/kg (head) | |
| Connector Type | USB Type-C - 24 pin USB-C | Micro-USB Handset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Nano SIM, Electronic SIM card (e-SIM) | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM | |
| SIM Card Configuration Details | Nano SIM + nano SIM/microSD | - |
| DISPLAY | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| Display Type | OLED display | LCD display | |
|---|---|---|---|
| Display Technology | Infinity-O Dynamic AMOLED 2X | LCD | |
| Screen Size (Display Size) | 6.9" | 6.52" | Samsung Galaxy S20 Ultra 5G has larger screen size than OPPO A15. |
| Screen Resolution (Display Resolution) | 3200 x 1440 pixels | 1600 x 720 pixels | Samsung Galaxy S20 Ultra 5G has better screen resolution than OPPO A15. |
| Display Format | QHD+ | HD+ | |
| Pixel Density | 511 ppi | 269 ppi | Samsung Galaxy S20 Ultra 5G has better pixel density than OPPO A15. |
| Max Brightness | - | 480 cd/m² | |
| Colour Depth | 16.7 million colours | - | |
| Contrast Ratio | - | 1500:1 | |
| HDR | Yes | - | Samsung Galaxy S20 Ultra 5G has HDR. |
| HDR Technology | HDR10+ | - | |
| Display Refresh Rate | 120 Hz | 60 Hz | Samsung Galaxy S20 Ultra 5G has better refresh rate than OPPO A15. |
| Display Features | Edge Screen, DCI-P3 Wide colour gamut, AOD(Always On Display), Edge Lighting | Dark mode, Waterdrop Screen |
| PROCESSOR | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| Processor Type (CPU) | Samsung Exynos 990 | MediaTek Helio P35 | |
|---|---|---|---|
| Processor Number | - | MT6765 | |
| Clock Speed | 2.73 GHz | 2.3 GHz | Samsung Galaxy S20 Ultra 5G has higher clock speed than OPPO A15. |
| Processor Core Qty | 8-core | - | |
| 64-bit Architecture | Yes | - | Samsung Galaxy S20 Ultra 5G has 64-bit architecture. |
| Graphics System (GPU) | - | IMG GE8320 |
| MEMORY | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| RAM | LPDDR5 SDRAM - 12 GB | LPDDR4X SDRAM - 3 GB | Samsung Galaxy S20 Ultra 5G has more RAM than OPPO A15. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 128 GB | 32 GB | Samsung Galaxy S20 Ultra 5G has more internal memory than OPPO A15. |
| User Memory | 104 GB | - | |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 1 TB | microSDHC, microSD, microSDXC - up to 256 GB |
| CAMERA | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 108 Megapixel | 13 Megapixel | Samsung Galaxy S20 Ultra 5G has better camera resolution than OPPO A15. |
| Sensor Size | 1/1.33" | - | |
| Lens Type | Wide-angle lens | - | |
| Lens Aperture | F/1.8 | F/2.2 | Samsung Galaxy S20 Ultra 5G has better lens aperture than Samsung Galaxy S20 Ultra 5G. |
| Lens Construction | - | 5-element | |
| Field of View (FoV) | 79 degree(s) | - | |
| Pixel Size | 0.8 μm | - | |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | - | Samsung Galaxy S20 Ultra 5G has optical stabilisation. |
| Focus Adjustment | Automatic, manual | Automatic | |
| Optical Zoom | 10x | - | |
| Digital Zoom | 100x | - | |
| Self-Timer Delay | Yes | - | |
| Special Effects | HDR, Bokeh effect, Grid Line, Motion photos, video bokeh effect | HDR, Portrait bokeh | |
| Camera Modes | Panorama, Slow motion mode, Pro mode, HYPERLAPSE, Super Slow-mo, Flowers, Greenery, Trees, Sky, Beaches, Watersides, Snow, Backlit, Text, Food, Face, Baby, Person, Dog, Cat, People, Sunset, Sunrise, City, Waterfall, Scenery, Stage, Vehicles, Drinks, Animal, Shoes, Indoor, Clothes, Night view, Live focus video, Night, Mountain, Pro Video mode, Single Take | Panorama, Time-lapse mode, Slow motion mode, Expert Mode, Portrait, Night | |
| Face Recognition (Face ID) | Face detection | - | Samsung Galaxy S20 Ultra 5G has face detection. |
| White Balance | Custom, automatic | - | |
| Light Source | High CRI LED flash | LED flash | |
| Video Resolutions | 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 60 fps, Super slow motion video 1280 x 720 (720p) at 960 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, 7680 x 4320 (8K) at 24 fps | - | |
| Camera Features (Functions) | Quick Launch, Playback zoom, Phase Detect Auto-Focus (PDAF), blink detection, VDIS (Video Digital Image Stabilisation), Live Focus, Tracking AF, Video location tags, Quick Share, location tags, Hyperlapse video support 1080p, Scene Optimiser, Full view, Flaw detection, Shot suggestions, AR Emoji, blur detection, HDR10+ recording, Floating shutter button, Super steady, Quick Measure, Space Zoom, 33MP still photos while playing 8K video, 100x Super Resolution Zoom, 10x Hybrid Optic Zoom, 3D Scanner | AI Triple camera, AI Scene Enhancement |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 12 Megapixel | 2 Megapixel | Samsung Galaxy S20 Ultra 5G has better second camera resolution than OPPO A15. |
|---|---|---|---|
| Lens Type (2nd Camera) | Ultra wide-angle lens | - | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.4 | Samsung Galaxy S20 Ultra 5G has better second camera lens aperture than Samsung Galaxy S20 Ultra 5G. |
| Lens Element Qty (2nd Camera) | - | 3-element | |
| Field of View (2nd Camera) | 120 degree(s) | - | |
| Pixel Size (2nd Camera) | 1.4 μm | - | |
| Camera Functions (2nd Camera) | - | Macro camera | |
| Camera Features (2nd Camera) | - | 4cm macro photography |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 48 Megapixels | 2 Megapixel | Samsung Galaxy S20 Ultra 5G has higher resolution third camera than OPPO A15. |
|---|---|---|---|
| Lens Type (3rd Camera) | Telephoto lens | - | |
| Lens Aperture (3rd Camera) | F/3.5 | F/2.4 | OPPO A15 has better third camera lens aperture than Samsung Galaxy S20 Ultra 5G. |
| Lens Element Qty (3rd Camera) | - | 3-element | |
| Field of View (3rd Camera) | 24 degree(s) | - | |
| Pixel Size (3rd Camera) | 0.8 μm | - | |
| Camera Functions (3rd Camera) | - | Depth camera |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 0.3 Megapixel | - | |
|---|---|---|---|
| Lens Aperture (4th Camera) | F/1.0 | - | |
| Camera Functions (4th Camera) | DepthVision camera | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 40 Megapixels | 5 Megapixel | Samsung Galaxy S20 Ultra 5G has better front camera resolution than OPPO A15. |
| Lens Aperture (Front) | F/2.2 | F/2.4 | Samsung Galaxy S20 Ultra 5G has better front lens aperture than Samsung Galaxy S20 Ultra 5G. |
| Lens Element Qty (Front) | - | 3-element | |
| Field of View (Front) | 80 degree(s) | - | |
| Pixel Size (Front) | 0.7 μm | - | |
| Focus Adjustment | Automatic | - | |
| Camera Features (Front) | Phase Detect Auto-Focus (PDAF) | AI beautification |
| BATTERY AND CHARGING | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| Battery Capacity (Battery Size) | 5000 mAh | 4230 mAh | Samsung Galaxy S20 Ultra 5G has larger battery capacity than OPPO A15. |
|---|---|---|---|
| Fast Charging Technology | Qualcomm Quick Charge 2.0, Adaptive Fast Charging, Samsung Super Fast Charging | - | Samsung Galaxy S20 Ultra 5G has fast charging technology. |
| Wireless Charging | Yes | - | Samsung Galaxy S20 Ultra 5G can be charged wirelessly. |
| Wireless Charging Standards | WPC, Qi, Fast Wireless Charging 2.0, Wireless PowerShare | - | |
| Talk Time | 1500 minutes | - | |
| Run Time Details | Talk (LTE): up to 1500 min Active online usage (LTE): up to 17 hrs Active online usage (Wi-Fi): up to 18 hrs |
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| CELLULAR | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 4G | Samsung Galaxy S20 Ultra 5G has more advanced generation mobile network. |
| Operating System | Android 10 | ColorOS 7.2 (based on Android 10) | |
| User Interface | Samsung One UI 2 | - | |
| Intelligent Assistant | Bixby | - | |
| Payment Technology | Samsung Pay | - | |
| Navigation | GPS, GLONASS, BeiDou, Galileo | GPS, A-GPS, GLONASS, BeiDou, Galileo |
| COMMUNICATIONS | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+, FDD-LTE, TDD-LTE, 5G NR FR1 | 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 | Band 1, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 900 | 2100, 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 18, Band 19, Band 20, Band 25, Band 26, Band 28, Band 32, Band 38, Band 39, Band 40, Band 41, Band 66 | Band 1, Band 3, 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 700b, FDD 800 lower, FDD 800 upper, FDD 800 DD, FDD 1900+, FDD 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 1900, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | FDD 2100, FDD 1800+, FDD 850, FDD 2600, FDD 900, FDD 800 DD, FDD 700 APT, TDD 2600, TDD 2300, TDD 2500 | |
| 5G NR Band | N1, n3, n5, n7, n8, n28, n77, n78, n40 | - | |
| 5G NR Frequency | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 700APT, TDD TD 3700, TDD TD 3500, TDD 2300 | - | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac, ANT+/ANT, IEEE 802.11a/b/g/n/ac/ax | Wi-Fi | |
| Bluetooth | Bluetooth 5.0 | Bluetooth 5.0 | |
| NFC | Yes | - | Samsung Galaxy S20 Ultra 5G has NFC reader for mobile payments. |
| Messaging Services | SMS, MMS | - |
| MEDIA | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, PCM, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, DSD, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID, DSD64, DSD128 | AAC, apt-X, LDAC, SBC | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, WMV, ASF, 3GP, M4V, WebM, 3G2, MP4 | - | |
| Sound Enhancements | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound | - |
| FEATURES | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| 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, proximity sensor, barometer, gyro sensor, hall sensor, RGB sensor, geomagnetic sensor | - | |
| Security Devices | Fingerprint reader (under display), face recognition | Face recognition, fingerprint reader | |
| Security Technology | - | AI face unlock | |
| Additional Phone Features | Smart Select, MU-MIMO technology, Fast Charging, Samsung KNOX, High AOP Mic, Smart View, Live message, Samsung DeX support, Bixby Vision, Secure Folder function, Dual Audio, Bixby Routines, Intelligent Performance Enhancer, AR Doodle, Bixby key, 3D Scanner | HyperBoost 2.1 |
| OTHERS | Samsung Galaxy S20 Ultra 5G | OPPO A15 |
|---|
| Included Accessories | Power adapter, SIM card removal tool, USB-C cable, headset (tuned by AKG), clear cover case, protective film | Protective cover, USB cable, power adapter, SIM card removal tool | |
|---|---|---|---|
| Compliant Standards | VDE, IP68, SGS | - | |
| Max Depth of Water Resistance | 1.5 m | - |
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