Samsung Galaxy S21 Ultra vs Oppo F31 Pro Plus 5G (12GB RAM + 256GB)
Quick Comparison
Both Samsung Galaxy S21 Ultra and Oppo F31 Pro Plus 5G (12GB RAM + 256GB) comes with same RAM. In terms of display resolution, Samsung Galaxy S21 Ultra has better resolution of 3200 x 1440 than Oppo F31 Pro Plus 5G (12GB RAM + 256GB) which has resolution of 2800 x 1280. Both have the same amount of internal memory.
| Name | Samsung Galaxy S21 Ultra | Oppo F31 Pro Plus 5G (12GB RAM + 256GB) |
| RAM | 12 GB | 12 GB |
|---|---|---|
| Display | 6.8 in | 6.8 in |
| Internal Memory | 256 GB | 256 GB |
| Battery | 5000 mAh | 7000 mAh |
| Camera | 108 MP Quad | 50 MP + 2 MP Dual |
| Price | Rs. 49999 | Rs. 34999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is January 14, 2021. The cost of Samsung Galaxy S21 Ultra is Rs. 49999. The launch Date of the second phone is September 15, 2025. The cost of Oppo F31 Pro Plus 5G (12GB RAM + 256GB) is Rs. 34999.
Display comparison
Samsung Galaxy S21 Ultra has larger screen size of 6.8 inches in comparison to Oppo F31 Pro Plus 5G (12GB RAM + 256GB)'s 6.8 inch screen. Samsung Galaxy S21 Ultra has Screen type where as Oppo F31 Pro Plus 5G (12GB RAM + 256GB) has AMOLED Screen type. Samsung's phone has display density of 515 PPI & OPPO's phone has only 453 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 93.5% than Samsung's phone ~ 89.8%. Both mobiles have same aspect ratio of 20:9.
Memory comparison
Both mobiles come with 12 GB RAM and both have same Internal Memory of 256 GB.
Camera comparison
Samsung Galaxy S21 Ultra's 108 MP Quad Rear Camera outclasses Oppo F31 Pro Plus 5G (12GB RAM + 256GB)'s 50 MP + 2 MP Dual Rear Camera in terms of resolution. Samsung Galaxy S21 Ultra will be better choice if you're looking to click lot of selfies as it has better 40 MP Front Camera in comparison to Oppo F31 Pro Plus 5G (12GB RAM + 256GB)'s 32 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 10 and the second one on 15 version.
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Full Comparison
| Name | Samsung Galaxy S21 Ultra | Oppo F31 Pro Plus 5G (12GB RAM + 256GB) |
| General | ||
| Model | Galaxy S21 Ultra 5G | CPH2757 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM (Hybrid Slot) |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| SAR | 1.16 W/kg (Head) 0.99 W/kg (Body) | |
| Device Type | Smartphone | Smartphone |
| Release Date | January 14, 2021 | September 15, 2025 |
| In The Box | Phone x 1, Charger x 1, USB Data Cable x 1, SIM Ejector Tool x 1, Quick Guide x 1, Protective Case x 1 | |
| Design | ||
| Dimensions | 75.6 x 165.1 x 8.9 mm | 77.6 x 163.1 x 7.7 mm |
| Weight | 227 g | 195 g |
| Colors | Festival Pink | Himalayan White | Gemstone Blue | |
| Display | ||
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color AMOLED Screen (1.07 B) |
| Touch | Yes | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.8 inches, 1440 x 3200 pixels, 120 Hz | 6.8 inches, 1280 x 2800 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 515 PPI | ~ 453 PPI |
| Screen to Body Ratio | ~ 89.8% | ~ 93.5% |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla Glass Victus 2 |
| Brightness | Normal brightness: 600nits (Typical), HBM: 1600nits (Typical) | |
| Features | Always-on Display, HDR10+, Curved Display | Vivid mode: 100% DCI-P3, Natural mode: 100% sRGB |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Curved Display | Yes | Yes |
| Memory | ||
| RAM | 12 GB | 12 GB |
| RAM Type | LPDDR4X | |
| Expandable RAM | Upto 12 GB Extra Virtual RAM | |
| Storage | 256 GB | 256 GB |
| Storage Type | UFS 3.1 | UFS 3.1 |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | 5G NR: n1/n3/n5/n8/n28B/n38/n40/n41/n77/n78 | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | WLAN 2.4G Supported, WLAN 5G Supported, Wi-Fi 5 (802.11ac) Supported, Wi-Fi 6 (802.11ax) Supported, 802.11a/b/g/n Supported, Wi-Fi Display Supported, WLAN Tethering Supported | |
| Bluetooth | Yes, v5.2, A2DP, LE | Yes, v5.2, SBC, AAC, LDAC, aptX, aptX HD |
| USB | Yes, USB-C v3.2 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Dual band: GPS (L1+L5), GLONASS (G1), BDS (B1I+B1C+B2a), Galileo (E1+E5a), QZSS (L1+L5), NavIC (L5) |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Proximity, Ambient light, Color temperature, E-compass, Accelerometer, Gyroscope |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | |
| AI Features | AI Eraser 2.0, AI Perfect Shot, AI Group Photo Composer, AI Recompose, AI VoiceScribe, AI Call Assistant, AI Assistant for Notes, Google Gemini | |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes |
| IP Rating | IP68 | IP69 + IP68 + IP66 |
| Dust Resistant | Yes | Yes |
| Extra Features | Network Boost Chip S1, Beacon Link 2.0, Glove Touch, Anti-Spam Call Blocker OPPO Dialer | |
| Camera | ||
| Rear Camera | 108 MP ƒ/1.8 10 MP ƒ/4.9 (Telephoto) 10 MP ƒ/2.4 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 50 MP ƒ/1.8 (Wide Angle) FOV 76°; 5P lens; AF Supported; Supports 2-axis OIS 2 MP ƒ/2.4 (Ultra Wide) FOV 89°; 3P lens |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | Auto-HDR, Panorama | Photo, Video, Portrait, Night, Panorama, SLO-MO, DUAL-VIEW VIDEO, TIME-LAPSE, STICKER, HI-RES, Google Lens, Underwater, PRO, DOC SCANNER |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD | 4K @ 30 fps UHD, 1080p @ 60 fps FHD, 720p @ 60 fps HD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 40 MP ƒ/2.2 (Wide Angle) Punch Hole, Autofocus | 32 MP ƒ/2.4 (Wide Angle) FOV 82°; 5P lens Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v10 | Android v15 |
| Custom UI | ColorOS 15 | |
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 7 Gen3 |
| CPU | 2.9 GHz, Octa Core Processor | 2.63 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 1xPrime Core@2.63 GHz & 3xPerformance Cores@2.4 GHz& 4xEfficiency cores@1.8 GHz |
| GPU | Mali-G78 MP14 | Adreno 720 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | No |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5000 mAh, Li-Po Battery | 7000 mAh |
| Fast Charging | Yes, 25W Fast Charging | Yes, 80W SuperVOOC Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 4.5W | Yes |