Side by side comparison and review of OPPO Find X3 PRO and Samsung Galaxy S21 FE 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 Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Manufacturer Model Number | CPH2173 | SM-G990B/DS | |
| Form Factor | Touch | Touch | |
| Height | 163.6 mm | 155.7 mm | OPPO Find X3 PRO has greater height than Samsung Galaxy S21 FE 5G. |
| Width | 74 mm | 74.5 mm | Samsung Galaxy S21 FE 5G has greater width than OPPO Find X3 PRO. |
| Depth | 8.26 mm | 7.9 mm | Samsung Galaxy S21 FE 5G is narrower than OPPO Find X3 PRO. |
| Weight | 193 g | 177 g | Samsung Galaxy S21 FE 5G is lighter than OPPO Find X3 PRO. |
| Body Colour | Gloss black | Olive | Graphite | White | Lavender | |
| Body Material | Aluminium alloy, polymer, Corning Gorilla Glass 5 | - | |
| Protection | Dustproof, water-resistant | Dustproof, splashproof, water-resistant | |
| Waterproof (Water-resistant) | Yes | - | OPPO Find X3 PRO is waterproof. |
| IP rating | IP68 | IP68 | |
| SAR Value | 1.318 W/kg (body), 0.892 W/kg (head), 2.707 W/kg (limb) | 1.48 W/kg (body), 0.952 W/kg (head), 2.91 W/kg (limb) | |
| Connector Type | USB Type-C - 24 pin USB-C | USB Type-C - 24 pin USB-C | |
| SIM Card Type (Size) | Nano SIM, Electronic SIM card (e-SIM) | Nano SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| Display Type | OLED display | OLED display | |
|---|---|---|---|
| Display Technology | AMOLED (LTPO) | Infinity-O Dynamic AMOLED 2X | |
| Screen Size (Display Size) | 6.7" | 6.4" | OPPO Find X3 PRO has larger screen size than Samsung Galaxy S21 FE 5G. |
| Screen Resolution (Display Resolution) | 3216 x 1440 pixels | 2340 x 1080 pixels | OPPO Find X3 PRO has better screen resolution than Samsung Galaxy S21 FE 5G. |
| Display Format | QHD+ | Full HD+ | |
| Pixel Density | 525 ppi | 401 ppi | OPPO Find X3 PRO has better pixel density than Samsung Galaxy S21 FE 5G. |
| Aspect Ratio | 20.1:9 | - | |
| Max Brightness | 1200 cd/m² | - | |
| Colour Depth | 1.07 billion colours | 16.7 million colours | OPPO Find X3 PRO has better colour depth than Samsung Galaxy S21 FE 5G. |
| Contrast Ratio | 5000000:1 | - | |
| HDR | Yes | - | OPPO Find X3 PRO has HDR. |
| HDR Technology | HDR10+ | HDR10+ | |
| Display Enhancement Technology | SDR-to-HDR colour enhancement, resolution enhancer | Eye Comfort Shield | |
| Display Refresh Rate | 120 Hz | 120 Hz | Both phones have the same refresh rate. |
| Display Features | Night mode, AOD(Always On Display), Dark mode, O1 Ultra Vision Engine, DisplayMate A+, 240Hz sampling rate, 12000000:1 (max HDR) contrast ratio, O-Sync Display Hyper Response Engine, 8192-Level Natural Brightness | AOD(Always On Display), Infinity O display, Video Wallpaper | |
| Display Protection (Screen Protector) | Corning Gorilla Glass 5 (scratch resistant glass) | Corning Gorilla Glass Victus (scratch resistant glass) |
| PROCESSOR | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 888 | - | |
|---|---|---|---|
| Clock Speed | 2.84 GHz | 2.84 GHz | Both phones have the same clock speed. |
| Processor Core Qty | 8-core | 8-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 660 | - |
| MEMORY | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| RAM | LPDDR5 SDRAM - 12 GB | 6 GB | OPPO Find X3 PRO has more RAM than Samsung Galaxy S21 FE 5G. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 256 GB | 128 GB | OPPO Find X3 PRO has more internal memory than Samsung Galaxy S21 FE 5G. |
| User Memory | - | 101.1 GB | |
| Memory Interface | UFS 3.1 | - |
| CAMERA | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 4 | 3 | |
|---|---|---|---|
| Sensor Resolution | 50 Megapixel | 12 Megapixel | OPPO Find X3 PRO has better camera resolution than Samsung Galaxy S21 FE 5G. |
| Sensor Size | 1/1.56" | 1/1.76" | Samsung Galaxy S21 FE 5G has better camera sensor size than OPPO Find X3 PRO. |
| Sensor Name | Sony Exmor RS IMX766 sensor | - | |
| Lens Type | - | Wide-angle lens | |
| Lens Aperture | F/1.8 | F/1.8 | Both phones have the same camera lens aperture. |
| Lens Construction | 6-element | - | |
| Field of View (FoV) | - | 79 degree(s) | |
| Pixel Size | 1 μm | 1.8 μm | Samsung Galaxy S21 FE 5G has larger camera pixel size than OPPO Find X3 PRO. |
| Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Optical Image Stabiliser (OIS) | Both phones have optical image stabilization. |
| Focus Adjustment | Automatic | Automatic | |
| Minimum Focal Length (Focal Distance) | 24 mm | - | |
| Optical Zoom | - | 3x | |
| Digital Zoom | - | 30x | |
| Special Effects | HDR, Live HDR, Bokeh effect, Stickers | Face retouch, Grid Line | |
| HDR Mode | - | Auto HDR mode | |
| Camera Modes | Burst mode, Panorama, Time-lapse mode, Slow motion mode, night mode, Expert Mode, portrait mode, AI Beauty, Text, Cinema mode, Filter mode, Macro mode, Dual-View Video, Ultra Night Video, AI Highlight Video, passport photo, RAW+ mode, Colour Vision Enhancement | Night mode, portrait mode | |
| Light Source | LED flash | LED flash | |
| Still Image Resolutions | 4096 x 3072, 4096 x 2304, 3072 x 3072, 8192 x 6144, 4096 x 1834 | - | |
| Video Resolutions | 1920 x 1080 (1080p) at 30 fps, 1920 x 1080 (1080p) at 60 fps, 1280 x 720 (720p) at 30 fps, 3840 x 2160 (4K) at 30 fps, 1280 x 720 (720p) at 60 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1920 x 1080 (1080p) at 240 fps, Slo-mo video 1280 x 720 (720p) at 480 fps | Slo-mo video 1280 x 720 (720p) at 240 fps, 3840 x 2160 (4K) at 60 fps, Slo-mo video 1280 x 720 (720p) at 960 fps | |
| Camera Features (Functions) | Electronic Image Stabiliser (EIS), 3D audio recording, omnidirectional autofocus, 2x2 On-Chip Lens (OCL), (DOL-HDR) Digital Overlap High Dynamic Range, 10-bit 4K HDR video, LOG video (Rec. 2020) | Dual recording |
| SECOND CAMERA |
|---|
| Sensor Resolution (2nd Camera) | 50 Megapixel | 12 Megapixel | OPPO Find X3 PRO has better second camera resolution than Samsung Galaxy S21 FE 5G. |
|---|---|---|---|
| Sensor Size (2nd Camera) | 1/1.56" | - | |
| Sensor Name (2nd Camera) | Sony Exmor RS IMX766 sensor | - | |
| Lens Type (2nd Camera) | Ultra wide-angle lens | Ultra wide-angle lens | |
| Lens Aperture (2nd Camera) | F/2.2 | F/2.2 | Both phones have the same second camera lens aperture. |
| Lens Element Qty (2nd Camera) | 7-element | - | |
| Field of View (2nd Camera) | 110 degree(s) | 123 degree(s) | Samsung Galaxy S21 FE 5G has larger second camera lens field of view than OPPO Find X3 PRO. |
| Pixel Size (2nd Camera) | 1 μm | 1.12 μm | Samsung Galaxy S21 FE 5G has larger second camera pixel size than OPPO Find X3 PRO. |
| Minimum Focal Length (2nd Camera) | 15 mm | - | |
| Camera Features (2nd Camera) | Electronic Image Stabiliser (EIS), omnidirectional autofocus, 2x2 On-Chip Lens (OCL), 4cm macro photography | - |
| THIRD CAMERA |
|---|
| Sensor Resolution (3rd Camera) | 13 Megapixel | 8 Megapixel | OPPO Find X3 PRO has higher resolution third camera than Samsung Galaxy S21 FE 5G. |
|---|---|---|---|
| Sensor Size (3rd Camera) | 1/3.4" | - | |
| Sensor Name (3rd Camera) | Samsung S5K3M5 | - | |
| Lens Type (3rd Camera) | Telephoto lens | Telephoto lens | |
| Lens Aperture (3rd Camera) | F/2.4 | F/2.4 | Both phones have the same lens aperture of the third camera. |
| Lens Element Qty (3rd Camera) | 5-element | - | |
| Field of View (3rd Camera) | - | 32 degree(s) | |
| Pixel Size (3rd Camera) | 1 μm | 1 μm | Both phones have the same third camera pixel size. |
| Minimum Focal Length (3rd Camera) | 52 mm | - | |
| Optical Zoom | 2x | - | |
| Digital Zoom | 20x | - | |
| Hybrid Zoom | 5x | - | |
| Camera Features (3rd Camera) | Electronic Image Stabiliser (EIS) | Space Zoom x30 |
| FOURTH CAMERA |
|---|
| Sensor Resolution (4th Camera) | 3 Megapixel | - | |
|---|---|---|---|
| Sensor Size (4th Camera) | 1/5" | - | |
| Lens Type (4th Camera) | Microlens | - | |
| Lens Aperture (4th Camera) | F/3.0 | - | |
| Lens Element Qty (4th Camera) | 4-element | - | |
| Pixel Size (4th Camera) | 1.12 μm | - | |
| Minimum Focal Length (4th Camera) | 15 mm | - | |
| Camera Features (4th Camera) | Magnification x60 | - |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 32 Megapixel | 32 Megapixel | Both phones have the same front camera resolution. |
| Sensor Size (Front) | 1/2.74" | - | |
| Sensor Name (Front) | Sony Exmor RS IMX615 sensor | - | |
| Lens Aperture (Front) | F/2.4 | F/2.2 | Samsung Galaxy S21 FE 5G has better front lens aperture than OPPO Find X3 PRO. |
| Lens Element Qty (Front) | 5-element | - | |
| Field of View (Front) | 81 degree(s) | 81 degree(s) | Both phones have the same front lens field of view. |
| Pixel Size (Front) | 0.8 μm | 0.8 μm | Both phones have the same front camera pixel size. |
| Focus Adjustment | - | Focus free | |
| Min Focal Length (Front) | 25 mm | - | |
| Special Effects (Front) | Stickers | - | |
| Camera Modes (Front) | Panorama, Time-lapse mode, night mode, Portrait | - | |
| Still Image Resolutions (Front) | 6560 x 4928 | - | |
| 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 | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| Battery Capacity (Battery Size) | 4500 mAh | 4500 mAh | Both phones have the same battery capacity. |
|---|---|---|---|
| Fast Charging Technology | VOOC Flash Charge technology 3.0, SuperVOOC 2.0 Flash Charge | Samsung Fast Charging | Both phones have fast charging technology. |
| Recharge Time (Charging Time) | 35 min | - | |
| Wireless Charging | Yes | Yes | Both phones can be charged wirelessly. |
| Wireless Charging Standards | Qi, AirVOOC | Wireless PowerShare | |
| Standby Time | 398.7 hours | - | |
| Talk Time | 1488 minutes | 2220 minutes | Samsung Galaxy S21 FE 5G has longer battery life when making calls than OPPO Find X3 PRO. |
| Run Time Details | Standby: up to 398.7 hrs Playback (video): up to 14.3 hrs Talk (3G): up to 1488 min Playback (audio (via speakers)): up to 36.9 hrs |
Talk (LTE): up to 2220 min Active online usage (LTE): up to 13 hrs Active online usage (Wi-Fi): up to 13 hrs Playback (video): up to 16 hrs Playback (audio): up to 79 hrs |
| CELLULAR | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 5G | 5G | Both phones have the same mobile network generation. |
| Operating System | ColorOS 11.2 (based on Android 11) | Android 12 | |
| Intelligent Assistant | - | Bixby | |
| Payment Technology | - | Samsung Pay | |
| Navigation | GPS, A-GPS, GLONASS, BeiDou, Galileo, QZSS | GPS, GLONASS, BeiDou, Galileo, QZSS |
| COMMUNICATIONS | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| Data Transmission | VoLTE, FDD-LTE, TDD-LTE, VoWiFi, 5G NR FR1 | 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 6, Band 8, Band 19 | Band 1, Band 2, Band 4, Band 5, Band 8 | |
| 3G UMTS Frequency | 2100, 1900, 1700, 850, 800, 900, 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 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 42, Band 66 | Band 1, Band 2, Band 3, Band 4, Band 5, Band 7, Band 8, Band 12, Band 17, Band 20, Band 26, Band 28, Band 32, 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 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, TDD 3500, 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 850+, FDD 700 APT, FDD 1500 L, TDD 2600, TDD 2300, TDD 2500, FDD 1700 - 2110 AWS-3 | |
| 5G NR Band | N1, n3, n5, n7, n8, n20, n28, n38, n41, n77, n78, n79, n40 | N1, n3, n5, n7, n8, n20, n28, n38, n41, n66, n78, n40 | |
| 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, TDD 2300 | FDD 2100, FDD 1800, FDD 850, FDD 2600, FDD 900, FDD 800, FDD 700APT, TDD TD 2600, TDD TD 2500, FDD AWS-3, TDD TD 3500, TDD 2300 | |
| Wireless Interface | IEEE 802.11a/b/g/n/ac/ax | IEEE 802.11a/b/g/n/ac | |
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.0 | |
| NFC | Yes | Yes | Both phones have an NFC reader for mobile payments. |
| MEDIA | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| Supported Digital Audio Standards | WAV, WMA, AAC, AMR, MP3, FLAC, OGG, APE (Monkey's Audio), LDAC, MID, SBC, LHDC | WAV, AAC, AMR, MP3, FLAC, XMF, OGG, MIDI, APE (Monkey's Audio), M4A, DSF, MXMF, OGA, 3GA, AWB, IMY, RTTTL, RTX, OTA, DFF, MID | |
|---|---|---|---|
| Supported Digital Video Standards | MKV, FLV, AVI, MOV, WMV, ASF, 3GP, H.265, MP4 | MKV, FLV, AVI, 3GP, M4V, WebM, 3G2, MP4 | |
| Sound Enhancements | Dolby Atmos sound technology, Qualcomm aptX audio, Qualcomm TrueWireless Stereo Plus, Qualcomm aptX HD audio | Dolby Digital Plus sound, Dolby Atmos sound technology, Surround sound, stereo speakers tuned by AKG, Dolby Digital sound |
| FEATURES | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| Phone Functions | Speakerphone, voice control, call timer, conference call, flight mode, voice dialing, vibrating alert | - | |
|---|---|---|---|
| Sensors | Accelerometer, ambient light sensor, proximity sensor, pedometer, digital compass, magnetometer, gyro sensor, gravity sensor, colour temperature sensor | Accelerometer, proximity sensor, barometer, gyro sensor, hall sensor, geomagnetic sensor, light sensor | |
| Security Devices | Fingerprint reader (under display), face recognition | Fingerprint reader | |
| Additional Phone Features | MIMO technology, MU-MIMO technology, Google Lens, Haptic vibration motor, dual stereo speakers, steam chamber + graphite cooling, triple noise reduction microphones | MIMO technology, Fast Charging, Samsung KNOX, Samsung DeX support, Samsung Smart Switch, Game mode |
| OTHERS | OPPO Find X3 PRO | Samsung Galaxy S21 FE 5G |
|---|
| Included Accessories | Headset, protective cover, SIM card removal tool, USB-C cable, protective film, SuperVOOC 65W power adapter | SIM card removal tool, USB-C cable | |
|---|---|---|---|
| Compliant Standards | IP68 | IP68 | |
| Max Depth of Water Resistance | - | 1.5 m |
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