Samsung Galaxy S21 vs OPPO Reno 15 5G
Quick Comparison
Both Samsung Galaxy S21 and OPPO Reno 15 5G comes with same RAM. In terms of display resolution, OPPO Reno 15 5G has better resolution of 2760 x 1256 than Samsung Galaxy S21 which has resolution of 2400 x 1080. OPPO Reno 15 5G has more internal memory than Samsung Galaxy S21
| Name | Samsung Galaxy S21 | OPPO Reno 15 5G |
| RAM | 8 GB | 8 GB |
|---|---|---|
| Display | 6.2 in | 6.59 in |
| Internal Memory | 128 GB | 256 GB |
| Battery | 4000 mAh | 6500 mAh |
| Camera | 64 MP + 12 MP + 12 MP Triple | 50 MP + 50 MP + 8 MP Triple |
| Price | Rs. 69999 | Rs. 45999 |
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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 is Rs. 69999. The launch Date of the second phone is December 02, 2025. The cost of OPPO Reno 15 5G is Rs. 45999.
Display comparison
OPPO Reno 15 5G has larger screen size of 6.59 inches in comparison to Samsung Galaxy S21's 6.2 inch screen. Samsung Galaxy S21 has Screen type where as OPPO Reno 15 5G has AMOLED Screen type. OPPO's phone has display density of 460 PPI & Samsung's phone has only 421 PPI display density. In terms of screen to body ratio, OPPO's phone has better screen to body ratio of ~ 93.4% than Samsung's phone ~ 87.2%. Samsung Galaxy S21 has 20:9 aspect ratio where as OPPO Reno 15 5G has 19.5:9 aspect ratio.
Memory comparison
Both mobiles come with 8 GB RAM OPPO Reno 15 5G has more Internal Memory (256 GB) than Samsung Galaxy S21 (128 GB).
Camera comparison
OPPO Reno 15 5G's 50 MP + 50 MP + 8 MP Triple Rear Camera outclasses Samsung Galaxy S21's 64 MP + 12 MP + 12 MP Triple Rear Camera in terms of resolution. OPPO Reno 15 5G will be better choice if you're looking to click lot of selfies as it has better 50 MP Front Camera in comparison to Samsung Galaxy S21's 10 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 16 version.
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Full Comparison
| Name | Samsung Galaxy S21 | OPPO Reno 15 5G |
| General | ||
| Country of Origin | India | |
| Model | Galaxy S21 5G | CPH2825 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | January 14, 2021 | December 02, 2025 |
| Design | ||
| Dimensions | 71.2 x 151.7 x 7.9 mm | 74.8 x 158 x 7.8 mm |
| Weight | 169 g | 197 g |
| Colors | Aurora Blue, Twilight Blue, Aurora White | |
| Display | ||
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color AMOLED Screen (1B Colors) |
| Touch | Yes | Yes, 240 Hz Touch Sampling Rate |
| Size | 6.2 inches, 1080 x 2400 pixels, 120 Hz | 6.59 inches, 1256 x 2760 pixels, 120 Hz |
| Aspect Ratio | 20:9 | 19.5:9 |
| PPI | ~ 421 PPI | ~ 460 PPI |
| Screen to Body Ratio | ~ 87.2% | ~ 93.4% |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla GG7i Glass+ |
| Brightness | Normal brightness: 600nits (Typical) HBM: 1200nits (Typical), 3600 nits (peak) | |
| Features | Always-on Display, HDR10+ | Standard Mode: 100% DCI-P3 Natural Mode: 100% DCI-P3 Vivid Mode: 100% DCI-P3 |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Memory | ||
| RAM | 8 GB | 8 GB |
| RAM Type | LPDDR5X | |
| Expandable RAM | Upto 8 GB Extra Virtual RAM | |
| Storage | 128 GB | 256 GB |
| Storage Type | UFS 3.1 | UFS 3.1 |
| Card Slot | No | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | Wi-Fi 7 | |
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v5.4, A2DP, LE, 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 |
| IR Blaster | Yes | |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, BDS, GALILEO | Yes, with A-GPS, GLONASS, BDS, GALILEO, QZSS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Accelerometer, Gyro, Proximity, Compass |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | |
| Water Resistance | Yes, 1.5 m upto 30 min | Yes, 1.5 m upto 30 min |
| IP Rating | IP68 | IP68 |
| Dust Resistant | Yes | Yes |
| Camera | ||
| Rear Camera | 12 MP ƒ/1.8 (Wide Angle) 64 MP ƒ/2 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 50 MP ƒ/1.8 (Wide Angle) FOV 79°; 5P lens; AF supported; Supports 2-axis OIS 50 MP ƒ/2.8 (Telephoto) FOV 30°; 4P lens; AF supported; Supports 2-axis OIS, 3.5x 8 MP ƒ/2.2 (Ultra Wide) Ultra Wide Selfie Camera with 100° FOV |
| OIS | Yes | Yes |
| Auto Focus | Yes | |
| Features | Auto-HDR, Panorama | Photo, Video, Portrait, Night, PRO, Panorama, SLO-MO, Dual-view video, TIME-LAPSE, STICKER, HI-RES, Google Lens, Underwater, Text Scanner, Doc Scanner, Movie |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD | 4K @ 60 fps UHD, 1080p @ 60 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 10 MP ƒ/2.2 (Wide Angle) Punch Hole | 50 MP ƒ/2 (Ultra Wide) Punch Hole |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 4K @ 60 fps UHD, 1080p @ 60 fps FHD |
| Technical | ||
| OS | Android v10 | Android v16 |
| Custom UI | ColorOS 16 | |
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 7 Gen4 |
| CPU | 2.9 GHz, Octa Core Processor | 2.8 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 1x Prime Core@ 2.8 GHz& 4 Performance Cores@ 2.4 GHz & 3x Efficiency Cores@ 1.8 GHz |
| Fabrication Node | TSMC 4nm | |
| GPU | Mali-G78 MP14 | Adreno 722 |
| NPU | Qualcomm Hexagon NPU | |
| 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 | 4000 mAh, Li-Po Battery | 6500 mAh |
| Fast Charging | Yes, 25W Fast Charging | Yes, 80W Fast Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 4.5W | Yes |