Samsung Galaxy S21 vs OPPO A91
Quick Comparison
Samsung Galaxy S21 has better RAM than OPPO A91. Both have the same amount of internal memory.
| Name | Samsung Galaxy S21 | OPPO A91 |
| RAM | 8 GB | 4 GB |
|---|---|---|
| Display | 6.2 in | 6.4 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 4000 mAh | 4025 mAh |
| Camera | 64 MP + 12 MP + 12 MP Triple | 48 MP Quad |
| Price | Rs. 69999 | Rs. 19990 |
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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 20, 2019. The cost of OPPO A91 is Rs. 19990.
Display comparison
OPPO A91 has larger screen size of 6.4 inches in comparison to Samsung Galaxy S21's 6.2 inch screen. Samsung Galaxy S21 has Screen type where as OPPO A91 has AMOLED Screen type. Samsung's phone has display density of 421 PPI & OPPO's phone has only 408 PPI display density. In terms of screen to body ratio, Samsung's phone has better screen to body ratio of ~ 87.2% than OPPO's phone ~ 85.5%. Both mobiles have same aspect ratio of 20:9.
Memory comparison
Samsung Galaxy S21's larger 8 GB RAM is better for playing games and all with respect to OPPO A91's lower 4 GB RAM. and both have same Internal Memory of 128 GB.
Camera comparison
OPPO A91's 48 MP Quad Rear Camera outshines Samsung Galaxy S21's 64 MP + 12 MP + 12 MP Triple Rear Camera in terms of resolution. OPPO A91 will be better choice if you're looking to click lot of selfies as it has better 16 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 9.0 version.
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Full Comparison
| Name | Samsung Galaxy S21 | OPPO A91 |
| General | ||
| Model | Galaxy S21 5G | A91 |
| 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 20, 2019 |
| Design | ||
| Dimensions | 71.2 x 151.7 x 7.9 mm | 73.3 x 160.2 x 7.9 mm |
| Weight | 169 g | 172 g |
| Display | ||
| Type | Color Dynamic AMOLED 2X (16M Colors) | Color AMOLED Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.2 inches, 1080 x 2400 pixels, 120 Hz | 6.4 inches, 1080 x 2400 pixels |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 421 PPI | ~ 408 PPI |
| Screen to Body Ratio | ~ 87.2% | ~ 85.5% |
| Glass Type | Corning Gorilla Glass Victus | Corning Gorilla Glass 5 |
| Features | Always-on Display, HDR10+ | |
| Notch | Yes, Punch Hole | Yes, Water Drop Notch |
| Memory | ||
| RAM | 8 GB | 4 GB |
| Storage | 128 GB | 128 GB |
| Storage Type | UFS 3.1 | |
| Card Slot | Yes | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v5.0, A2DP, LE | Yes, v4.2, A2DP, LE |
| 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 | Yes, with A-GPS, GLONASS, BDS |
| 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 | Yes |
| NFC | Yes | Yes |
| Water Resistance | Yes, 1.5 m upto 30 min | |
| IP Rating | IP68 | |
| Dust Resistant | Yes | |
| Camera | ||
| Rear Camera | 12 MP ƒ/1.8 (Wide Angle) 64 MP ƒ/2 (Telephoto) 12 MP ƒ/2.2 (Ultra Wide) | 48 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.3 (Ultra Wide) 2 MP ƒ/2.4 2 MP ƒ/2.4 (Depth Sensor) |
| OIS | Yes | |
| Auto Focus | Yes | |
| Features | Auto-HDR, Panorama | HDR, Panorama |
| Video Recording | 8K @ 24 fps UHD, 4K @ 30/60 fps UHD, 1080p @ 240/30/60 fps FHD, 720p @ 960 fps HD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 10 MP ƒ/2.2 (Wide Angle) Punch Hole | 16 MP ƒ/2 (Wide Angle) |
| Front Video Recording | 4K @ 30/60 fps UHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v10 | Android v9.0 (Pie), upgradable to v11 |
| Chipset | Samsung Exynos 2100 | Mediatek Helio P70 |
| CPU | 2.9 GHz, Octa Core Processor | 2 GHz, Octa Core Processor |
| Core Details | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53 |
| GPU | Mali-G78 MP14 | Mali-G72 MP3 |
| Java | No | No |
| Browser | Yes | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | No | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 4000 mAh, Li-Po Battery | 4025 mAh |
| Fast Charging | Yes, 25W Fast Charging | Yes, 20W Fast Charging |
| Wireless Charging | Yes, 15W | |
| Reverse Charging | Yes, 4.5W | |