Samsung Galaxy S21 Ultra vs Oppo Reno15 5G
Compare Samsung Galaxy S21 Ultra and Oppo Reno15 5G to understand which one suits your needs the best. The Samsung Galaxy S21 Ultra is priced from ₹47,990, while Oppo Reno15 5G is available at ₹47,999 respectively. In terms of performance and features, each device offers a unique combination of processor, display, camera, and battery capabilities. Explore their complete specifications and key differences side-by-side to make a well-informed buying decision.
Samsung Galaxy S21 Ultra vs Oppo Reno15 5G Comparison Overview
| Key Highlights | Samsung Galaxy S21 Ultra | Oppo Reno15 5G |
|---|---|---|
| Price | ₹47,990 | ₹47,999 |
| Processor | Samsung Exynos 2100 | Qualcomm Snapdragon 7 Gen 4 |
| Display | 6.8", FHD+ AMOLED, 120Hz | 6.59", 1.5K AMOLED, 120Hz |
| Rear Camera | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) | 50MP (Wide-angle), 50MP (Telephoto), 8MP (Ultra-wide), 50MP (Front) |
| Battery | 5000mAh, 25Watt | 6500mAh, 80Watt, Charger in the box |
| RAM/Storage | 12GB (LPDDR5), 256GB (UFS 3.1) | 8GB (LPDDR5X), 256GB (UFS 3.1) |
Performance Scorecard
Key Specifications
| Processor | Samsung Exynos 2100 | Qualcomm Snapdragon 7 Gen 4 | ||
|---|---|---|---|---|
| Display | 6.8", FHD+ AMOLED, 120Hz | 6.59", 1.5K AMOLED, 120Hz | ||
| Camera | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) | 50MP (Wide-angle), 50MP (Telephoto), 8MP (Ultra-wide), 50MP (Front) | ||
| Battery | 5000mAh, 25Watt | 6500mAh, 80Watt, Charger in the box | ||
| RAM | 12GB (LPDDR5) | 8GB (LPDDR5X) | ||
| Storage | 256GB (UFS 3.1) | 256GB (UFS 3.1) |
General
| Box Contents | Phone, Type-C cable, SIM Ejector Tool | Phone, 80W Charger, Type-C Cable, SIM Ejector Tool, Case | ||
|---|---|---|---|---|
| Colors | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy | Glacier White, Twilight Blue, Aurora Blue | ||
| Launch | January 14, 2021 | January 08, 2026 | ||
| Stores | Flipkart, Amazon | Oppo, Flipkart, Amazon, Vijay Sales, Reliance Digital, Croma | ||
| Launch Country | India | India | ||
| Launch Price | ₹1,05,999 | ₹45,999 |
Display
🏆 Winner: Oppo Reno15 5G
| Display Type | AMOLED | AMOLED | ||
|---|---|---|---|---|
| Refresh Rate | 120Hz | 120Hz | ||
| Playback Quality | HDR10+ | HDR10+ | ||
| Display Engine | Dynamic 2X | - | ||
| Display Size | 6.8 inches | 6.59 inches | ||
| Area | 112.1cm² | 105.6cm² | ||
| Display Form Factor | Quad Curved Display | Flat Display | ||
| Screen to Body Ratio | 89.8 | 93.4 | ||
| Resolution Width | 1440 pixels | 1256 pixels | ||
| Resolution Height | 3200 pixels | 2760 pixels | ||
| Aspect Ratio | 20:9 | 20:9 | ||
| Pixel Density | 515ppi | 460ppi | ||
| Display Bit Rate | 8-bit | 10-bit | ||
| Color Gamut Range | 100% | 100% | ||
| Display Resolution | FHD+ | 1.5K | ||
| High Brightness | 1500 nits | 1200 nits | ||
| Peak Brightness | 1500 nits | 3600 nits | ||
| Colour Depth | 16 Million Colours | 1.07 Billion Colours | ||
| LTPS Support | - | Yes | ||
| Touch Sampling Rate | - | 240Hz | ||
| Typical Brightness | - | 600 nits | ||
| Eye Protection | - | PWM Dimming | ||
| Colour Gamut | - | DCI-P3 |
Body
🏆 Winner: Samsung Galaxy S21 Ultra
| Height | 165.1mm | 158mm | ||
|---|---|---|---|---|
| Width | 75.6mm | 74.8mm | ||
| Thickness | 8.9mm | 7.8mm | ||
| Weight | 227 grams | 197 grams | ||
| Screen Material | Gorilla Glass Victus | Gorilla Glass 7i | ||
| Display Protection | Gorilla Glass Victus | Gorilla Glass 7i | ||
| Back Material | Gorilla Glass Victus | Glass | ||
| Side Material | Aluminium Frame | Aluminium Frame | ||
| Build Quality | Corning Gorilla Glass Victus | Corning Gorilla Glass 7i | ||
| Ports | USB Type-C 3.1 Gen 1 | USB Type-C | ||
| Additional Features | OTG | OTG, USB Type-C (bottom) | ||
| IP Rating | IP68 (Dust and Water Resistant) | IP66/68/69 (Dust and Water Resistant) | ||
| Speaker | Stereo Speakers | Stereo Speakers | ||
| Sound Tuning | No Tuning | No Tuning |
Processor
🏆 Winner: Oppo Reno15 5G
| Chipset Manufacturer | Samsung | Qualcomm | ||
|---|---|---|---|---|
| Chipset | Exynos 2100 | Snapdragon 7 Gen 4 | ||
| Fabrication Size | 5nm | 4nm | ||
| Number of Cores | Octa-core | Octa-core | ||
| Clock Speed | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | 1x2.8 GHz Cortex-720 & 4x2.4 GHz Cortex-720 & 3x1.8 GHz Cortex-520 | ||
| GPU | Mali-G78 MP14 | Adreno 722 |
Performance Benchmarks
| AnTuTu | 875803 | 1332275 | ||
|---|---|---|---|---|
| Geekbench 6 CPU Single-Core | 1356 | 1221 | ||
| Geekbench 6 CPU Multi-Core | 3348 | 4002 |
Main Camera
🏆 Winner: Samsung Galaxy S21 Ultra
| Main Camera #1 Megapixel | 108MP | 50MP | ||
|---|---|---|---|---|
| Main Camera #1 Aperture | f/1.8 | f/1.8 | ||
| Main Camera #1 Focal Length | 24mm | 26mm | ||
| Main Camera #1 Pixel Size | 0.8µm | 0.8µm | ||
| Main Camera #1 Lens Type | Wide-angle | Wide-angle | ||
| Main Camera #1 Sensor Size | 1/1.33" | 1/1.95" | ||
| Main Camera #1 Camera Features | OIS, PDAF | Auto Focus, OIS, PDAF | ||
| Main Camera #2 Megapixel | 10MP | 50MP | ||
| Main Camera #2 Aperture | f/4.9 | f/2.8 | ||
| Main Camera #2 Focal Length | 240mm | 80mm | ||
| Pixel Size | 1.22µm | 0.64µm | ||
| Main Camera #2 Lens Type | Periscope | Telephoto | ||
| Main Camera #2 Sensor Size | 1/3.24" | 1/2.76" | ||
| Main Camera #2 Camera Features | 10x Optical Zoom, Dual Pixel PDAF, OIS | 3.5x Optical Zoom, Auto Focus, OIS, PDAF | ||
| Main Camera #3 Megapixel | 10MP | 8MP | ||
| Main Camera #3 Aperture | f/2.4 | f/2.2 | ||
| Main Camera #3 Focal Length | 72mm | 15mm | ||
| Main Camera #3 Pixel Size | 1.22µm | 1.12µm | ||
| Main Camera #3 Lens Type | Telephoto | Ultra-wide | ||
| Main Camera #3 Sensor Size | 1/3.24" | 1/4.0" | ||
| Main Camera #3 Camera Features | 3x Optical Zoom, Dual Pixel PDAF, OIS | Auto Focus | ||
| Main Camera #4 Megapixel | 12MP | - | ||
| Main Camera #4 Aperture | f/2.2 | - | ||
| Main Camera #4 Focal Length | 13mm | - | ||
| Main Camera #4 Pixel Size | 1.4µm | - | ||
| Main Camera #4 Lens Type | Ultra-wide | - | ||
| Main Camera #4 Sensor Size | 1/2.55" | - | ||
| Main Camera #4 Camera Features | Dual Pixel PDAF, Super Steady Video | - | ||
| Features | Laser AF | Cinematic Mode, Color Spectrum Sensor, Documents Mode, Dual View, Film Camera Mode, Google Lens, HDR, Hi-Res Mode, Movie, Night, panorama, Photo, portrait, Pro, Scan, Slow-Mo, STICKER, Time Lapse, Underwater, Video | ||
| Camera Stabilization | OIS | OIS | ||
| Dynamic Video Recording Support | HDR 10+ recording | HDR recording | ||
| Stereo Sound Recording Support | Yes | - | ||
| Slow Motion Recording | 960 fps slomo | 240 fps slomo | ||
| Auto Focus Type | PDAF | PDAF | ||
| Lens Enhancements | No enhancement | No enhancement | ||
| Optical Zoom Support | 10X | 3.5X | ||
| Video Features | gyro-EIS, HDR10+, Stereo Sound Recording | Cinematic mode, Dual Video, EIS, HDR, OIS, Slow Motion, Time-lapse Video | ||
| Video Recording | 1080p@120fps, 1080p@240fps, 1080p@30fps, 1080p@60fps, 4K@30fps, 4K@60fps, 720p@960fps, 8K@24fps | 1080p@120fps, 1080p@30fps, 1080p@60fps, 4K@30fps, 4K@60fps, 720p@120fps, 720p@240fps, 720p@30fps | ||
| Main Camera #1 Field of View | - | 79degree | ||
| Main Camera #1 Camera Sensor | - | Sony IMX882 | ||
| Main Camera #2 Field of View | - | 30 | ||
| Main Camera #2 Camera Sensor | - | SAMSUNG ISOCELL JN5 | ||
| Main Camera #3 Field of View | - | 116 | ||
| Main Camera #3 Camera Sensor | - | OmniVision OV08D | ||
| Dedicated Imaging Chip | - | No Chip | ||
| Zoom Capability | - | >100x |
Operating System
| OS Name | Android | Android | ||
|---|---|---|---|---|
| OS Version | 11 | 16 | ||
| OS Skin | One UI | ColorOS | ||
| OS Updates | 4 year(s) | 5 year(s) | ||
| Security Updates | 5 year(s) | 6 year(s) | ||
| AI Features | Circle to Search | AI Camera, AI Eraser, AI Flash Photography 2.0, AI Gaming Antenna System Acceleration, AI HyperBoost, AI LinkBoost, AI mind space, AI Motion, AI Motion Photo Eraser, AI Motion Photo Slow-Mo, AI Network Booster, AI popout, AI Portrait Camera, AI Portrait Glow, AI Super Wi-Fi Booster, AI Translate, AI Travel Portrait Camera, Call Translator | ||
| Gaming Mode | - | Yes |
Selfie Camera
🏆 Winner: Oppo Reno15 5G
| Front Camera #1 Megapixel | 40MP | 50MP | ||
|---|---|---|---|---|
| Front Camera #1 Aperture | f/2.2 | f/2.0 | ||
| Front Camera #1 Focal Length | 26mm | 18mm | ||
| Front Camera #1 Pixel Size | 0.7µm | 0.64µm | ||
| Front Camera #1 Lens Type | Wide | Ultrawide | ||
| Front Camera #1 Sensor Size | 1/2.8" | 1/2.76" | ||
| Front Camera #1 Camera Features | Auto Focus, PDAF | Auto Focus | ||
| Features | Face unlock, HdR | Dual Video, Hi-Res, Night, panorama, Photo, Portrait, Retouch, Screen Fill Light, Sticker, Time Lapse, Video | ||
| Auto Focus Type | Contrast Detection Auto Focus | Contrast Detection Auto Focus | ||
| Video Features | 1080p@30fps, 4k@30/60fps | Dual Video, gyro-EIS, HDR, Time Lapse | ||
| Video Recording | 4k@30fps, 4k@60fps | 1080@30fps, 1080@60fps, 4k@30fps, 4k@60fps, 720p@30fps | ||
| HDR Recording Support | SDR recording | HDR recording | ||
| Front Camera #1 Field of View | - | 100 | ||
| Front Camera #1 Camera Sensor | - | SAMSUNG ISOCELL JN5 |
Battery
🏆 Winner: Oppo Reno15 5G
| Battery Capacity | 5000mAh | 6500mAh | ||
|---|---|---|---|---|
| Battery Type | Lithium Ion | Silicon Carbon | ||
| Wireless Charging Support | Yes | - | ||
| Reverse Wireless Charging Support | Yes | - | ||
| Charging Speed Wired | 25W | 80W | ||
| Charging Speed Wireless | 15W | - | ||
| Charging Speed Reverse Wireless | 4.5W | - | ||
| Charging Standards Supported | PD3.0, Qi | PD, PPS, QC, SUPERVOOC, UFCS | ||
| Reverse Wired Charging Support | - | Yes |
Battery Test Results
| Charging Time (0 To 50%) | - | 1hr 10 min (0 to 100%) |
|---|
Network
| Sim Type | nano-SIM and eSIM or Dual SIM (2 nano-SIM and eSIM, dual stand-by) | Dual nano-SIM (nano-SIM, dual stand-by) | ||
|---|---|---|---|---|
| Network Support | 5G | 5G | ||
| Band Types | 5G, GSM, LTE FDD, LTE TD, UMTS, WCDMA | 5G, GSM, LTE FDD, LTE TD, WCDMA | ||
| 2G Bands | 1800, 1900, 850, 900 | 1800, 850, 900 | ||
| 3G Bands | 1, 2, 4, 5, 8 | WCDMA 1, 4, 5, 8 | ||
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 | LTE 1, 3, 4, 5, 8, 18, 19, 26, 28, 38, 40, 41, 42, 48, 66 | ||
| 5G Bands | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 | SA/NSA 1, 3, 5, 8, 18, 26, 28, 38, 40, 41, 48, 66, 77, 78 |
Connectivity
🏆 Winner: Oppo Reno15 5G
| Wi-Fi Standards | Wi-Fi 6E 802.11 a/b/g/n/ac/ax | Wi-Fi 6 802.11 a/b/g/n/ac/ax | ||
|---|---|---|---|---|
| Wi-Fi Version | WiFi 6 | WiFi 6 | ||
| Bluetooth Version | 5.2 | 5.4 | ||
| Bluetooth Codecs | A2DP, AAC, LE | AAC, aptX, aptX Adaptive, aptX HD, LDAC, LHDC 5.0, SBC | ||
| GPS | BeiDou, GALILEO, GLONASS, GPS | A-GPS, Beidou, Galileo, Glonass, GPS, QZSS | ||
| NFC Support | Supported | Supported | ||
| Radio | FM Radio | - |
Features
| Fingerprint Scanner | Optical (under display) | Optical (under display) | ||
|---|---|---|---|---|
| Sensors on Board | Accelerometer, Barometer Sensor, Geomagnetic Sensor, Gyroscope, Hall Sensor, Light Sensor, Proximity Sensor, Samsung DeX, Ultra Wideband (UWB) Support | Accelerometer, Ambient Light Sensor, Geomagnetic Sensor, Gyroscope, Infrared Sensor, Proximity Sensor | ||
| Facial Recognition | 2D Face Recognition | 2D Face Recognition | ||
| Haptic Feedback | - | X-axis Linear Motor |









