Samsung Galaxy S21 Ultra (SM-G998B 128GB) vs Oppo F3 Plus (64GB/6GB)
Side by side comparison between Samsung Galaxy S21 Ultra vs Oppo F3 Plus phones, differences, pros, cons and full specifications. What's the better?
,
6.8"
AMOLED
AMOLED
1440x3200
108
MP
MP
40mp
12GB
RAM
RAM
Octa-core
5000
mAh
mAh
(Non removable)
vs
6"
IPS
IPS
1080x1920
16
MP
MP
16mp
6GB
RAM
RAM
Octa-core
4000
mAh
mAh
(Non removable)
What's the better phone? Samsung Galaxy S21 Ultra (SM-G998B 128GB)
The phonemore's choice is much more technical than personal. Therefore, you shouldn't only consider this. Our goal is to help you, but what's important to us may not be important to you. You decide which one is the best! Comment!
30 Advantages 
6 Advantages | 17 Common items in both devices |
| Aluminum frame, glass front/back / Aluminum body, glass front |
| 16 million |
| PDAF: phase detection autofocus on both cameras / PDAF: phase detection autofocus |
| OIS: Optical stabilization |
| HDR photo/video on both cameras / HDR photo on both cameras |
| Capacitive |
| Multitouch |
| +10 specs and more in the table below |
Check the comparison table below for more items that are not evaluated in comparison score above.
Highlight differences Clear highlight📱 Model features | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Model | Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) |
| Other model names | Galaxy S21 Ultra 5G (SM-G998B Single-SIM) | Oppo F3 Plus (6GB RAM), Oppo CPH1613 |
| Country or region available |  Australia |  India |
| Brand | Samsung | Oppo |
| Release date | 1/29/2021, Announced: 1/14/2021 | 3/23/2017 |
| Depth | 8.9 millimeters (0.35 inches) | 7.4 millimeters (0.29 inches) |
| Size (width x height) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) | 80.8 x 163.6 millimeters (3.18 x 6.44 in) |
| Weight | 227 grams (7.95 ounces) | 185 grams (6.48 ounces) |
| Build, materials | Aluminum frame, glass front/back | Aluminum body, glass front |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant | Not supported |
📲 Display | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Display type | Dynamic AMOLED | TFT IPS LCD |
| Screen size | 6.8" inches | 6" inches |
| Screen-to-body ratio | ~89.4% (screen-to-body ratio) | ~75.1% (screen-to-body ratio) |
| Display resolution | 1440x3200 pixels (20:9) | 1080x1920 pixels |
| Touchscreen | Capacitive Multitouch 10-points | Capacitive Multitouch |
| Pixel density (dot pitch) | 516 PPI | 367 PPI |
| Colors | 16 million | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus | Gorilla Glass 5 |
| Refresh rate | 120Hz | feature not registered |
| Display features | 1500nits[peak] HDR10+ Always-On Display | feature not registered |
🤖 Operating System | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| System version | Android 11 | Android 6.0 Marshmallow |
| Firmware update | Android 14 | feature not registered |
| User Interface | One UI 3.1 / 4.1 / 5.1 / 6.0 | feature not registered |
⚙️ Processor | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Chipset | 64bit: Samsung Exynos 2100 (5nm) | 64bit: Qualcomm Snapdragon 653 MSM8976 Pro (28nm) |
| CPU | Octa-core, 3 processors: 1x 2.9GHz ARM Cortex-X1 (Single-core) 3x 2.8GHz ARM Cortex-A78 (Triple-core) 4x 2.2GHz ARM Cortex-A55 (Quad-core) | Octa-core, 2 processors: 4x 1.95GHz ARM Cortex-A72 (Quad-core) 4x 1.4GHz ARM Cortex-A53 (Quad-core) |
| GPU graphical controller | ARM Mali-G78 MP14 (854MHz) | Qualcomm Adreno 510 600Mhz |
| Performance (benchmark) | AnTuTu: 657150 (v8), 727634 (v9) Geekbench: 3457 (v5.2) GFXBench: 51fps (ES 3.1 onscreen) | feature not registered |
💽 Memory and storage | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| RAM memory | 12GB LPDDR5 | 6GB LPDDR3 |
| Internal storage | 128GB (101GB available) UFS 3.1 | 64GB (50GB available) eMMC 5.1 |
| External storage | Not supported | Until 256GB microSD, microSDXC (hybrid slot/shares the same SIM-2 slot) |
📶 Mobile networks | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card | Dual-SIM Standby - Call active on one sim card (hybrid slot/shares the same microSD slot) |
| SIM card | 1 slot (Single-SIM) nano-SIM (4FF) + e-SIM | 2 slots (Dual-SIM) nano-SIM (4FF) |
| Maximum Download / Upload | 5000/1920 Mbps | 300/50 Mbps |
| Network technology | 2G, 3G, 4G, 5G | 2G, 3G, 4G |
| Frequency, bands | Expand band details Collapse details | |
| GSM MHz band | Quad-Band 850/900/1800/1900 | Quad-Band 850/900/1800/1900 |
| Primary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Primary 3G network | UMTS 850/900/1700/1900/2100 | UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE | LTE Cat6 (Bands 1,2,3,4,5,7,8,20,28) TD-LTE (Bands 38,39,40,41) |
| Primary 5G network | SA/NSA/Sub6 (1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78) | Not supported |
| Primary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A |
| Secondary 2G network | GSM 850/900/1800/1900 | GSM 850/900/1800/1900 |
| Secondary 3G network | UMTS 850/900/1700/1900/2100 | Not supported |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 66) TD-LTE (38, 39, 40, 41) VoLTE | Not supported |
| Secondary data network | GPRS, EDGE, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA | GPRS, EDGE |
📷 Camera | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Back camera (main camera) | (quad camera) 108 megapixels 10MP periscope telephoto f/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom 10MP telephoto f/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom 12MP ultrawide f/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video | 16 megapixels |
| Main camera resolution | 12000x9000 pixels | 4608x3456 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps | 4K UHD (3840x2160) 30 fps |
| Flash | LED flash | Dual-LED flash |
| Focal aperture | f/1.8 (aperture) | f/1.7 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/1.33" inches | 1/2.8" inches |
| Pixel size | 1.8µm pixel | 1.12µm pixel |
| Autofocus | PDAF: phase detection autofocus on both cameras | PDAF: phase detection autofocus |
| Touch focus | Supported | Supported |
| Image stabilization | OIS: Optical stabilization | OIS: Optical stabilization |
| Zoom | Digital and optical zoom | Only digital zoom |
| Face/smile detection | Face detection, Smile detection | Face detection, Smile detection |
| BSI sensor | Supported | Not supported |
| HDR | HDR photo/video on both cameras | HDR photo on both cameras |
| Camera extras | 4K@60fps 1080p@240fps 720p@960fps | feature not registered |
📸 Front camera | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Front camera (secondary) | 40 megapixels | (dual front camera) 16 megapixels 8MP f/2.01/3"120° |
| Front camera resolution | 7296x5472 pixels | 4608x3456 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) | Full HD (1920x1080) |
| Front flash | Not supported | Not supported |
| Focal aperture | f/2.2 (aperture) | f/2.0 (aperture) |
| Focal length | 26mm lens | feature not registered |
| Sensor size | 1/2.8" inches | feature not registered |
| Pixel size | 0.7µm pixel | feature not registered |
🔉 Sound and multimedia | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Loudspeaker | Stereo sound 32-bit/384kHz Dolby Atmos Tuned by AKG | Supported |
| Active noise cancellation | 2 microphones or more | 2 microphones or more |
| Radio | FM | Not supported |
| TV | Not supported | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV | MP4, H.264, H.263 |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC | MP3, OGG, eAAC+, FLAC |
🔌 Connectivity | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| USB | USB 3.2 Type-C, USB OTG On-The-Go | MicroUSB 2.0 |
| Audio output | Type-C reversible connector | 3.5mm jack |
| TV output | USB Type-C (reversible) | Not supported |
| Bluetooth | 5.2 + A2DP/LE | 4.1 + A2DP |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot | 802.11 a/b/g/n/ac [wifi5] (2.4GHz, 5GHz) + MIMO WiFi Direct, hotspot |
| DLNA | Supported | Not supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou | A-GPS, GeoTagging |
| NFC | Supported | Not supported |
| Infrared port | Not supported | Not supported |
🧭 Sensors | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Sensors | Accelerometer Ambient light sensor Barometer Compass Face unlock Fingerprint sensor (under display) Gesture Gyroscope Hall effect Proximity sensor UWB (Ultra Wideband) | Accelerometer Ambient light sensor Compass Fingerprint sensor (front-mounted) Gyroscope Proximity sensor |
| Vibrating alert | Supported | Supported |
🔋 Battery | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Battery type | LiPo: li-ion polymer (Non removable) | LiPo: li-ion polymer (Non removable) |
| Battery capacity | 5000 mAh | 4000 mAh |
| Charger, watts | 25W Wired fast charging USB Power Delivery 3.0 | Wired charging |
| Inductive / wireless charging | 15W Qi wireless charging (Qi/PMA) 4.5W Reverse wireless charging | feature not registered |
| Talk time autonomy | feature not registered | feature not registered |
| Standby | feature not registered | feature not registered |
➕ Other features | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| Call control | Voice dialing, Voice recorder, Voice commands | Voice dialing, Voice recorder |
| Messaging | SMS (T9), MMS, E-mail, Push mail | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported | Supported |
| Video calling | Supported | Supported |
| Ringtones | Polyphonic and customized | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 | HTML, XHTML, HTML5 |
| Antenna | Internal antenna | Internal antenna |
| Qwerty physical keyboard | Not supported | Not supported |
| Miscellaneous | • Colors: Phantom Black, Silver, Titanium, Navy, Brown • Samsung Pay (Visa, MasterCard) • Samsung DeX • Stylus pen support | • Colors: Gold, Rose gold • USB OTG On-The-Go • ColorOS 3.0 • Silicone case included • Fast battery charging • VOOC Flash Charge • VoLTE |
☢️ Radiation rate | ||
| Galaxy S21 Ultra (SM-G998B 128GB) | Oppo F3 Plus (64GB/6GB) | |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.24W/kg (head), 0.72W/kg (body) | feature not registered |
| SAR 2W/kg (Europe, UK, etc.) | 0.714W/kg (head), 1.58W/kg (body) | feature not registered |