Samsung Galaxy S21 Ultra vs Oppo Reno15c
Compare Samsung Galaxy S21 Ultra and Oppo Reno15c to understand which one suits your needs the best. The Samsung Galaxy S21 Ultra is priced from ₹47,990, while Oppo Reno15c is available at ₹41,999 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 Reno15c Comparison Overview
| Key Highlights | Samsung Galaxy S21 Ultra | Oppo Reno15c |
|---|---|---|
| Price | ₹47,990 | ₹41,999 |
| Processor | Samsung Exynos 2100 | Qualcomm Snapdragon 6 Gen 1 |
| Display | 6.8", FHD+ AMOLED, 120Hz | 6.57", FHD+ AMOLED, 120Hz |
| Rear Camera | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) | 50MP (Wide-angle), 8MP (Ultra-wide), 2MP (Macro), 50MP (Front) |
| Battery | 5000mAh, 25Watt | 7000mAh, 80Watt, Charger in the box |
| RAM/Storage | 12GB (LPDDR5), 256GB (UFS 3.1) | 8GB (LPDDR4X), 256GB (UFS 3.1) |
Performance Scorecard
Key Specifications
| Processor | Samsung Exynos 2100 | Qualcomm Snapdragon 6 Gen 1 | ||
|---|---|---|---|---|
| Display | 6.8", FHD+ AMOLED, 120Hz | 6.57", FHD+ AMOLED, 120Hz | ||
| Camera | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) | 50MP (Wide-angle), 8MP (Ultra-wide), 2MP (Macro), 50MP (Front) | ||
| Battery | 5000mAh, 25Watt | 7000mAh, 80Watt, Charger in the box | ||
| RAM | 12GB (LPDDR5) | 8GB (LPDDR4X) | ||
| 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 | Afterglow Pink, Twilight Blue | ||
| Launch | January 14, 2021 | January 08, 2026 | ||
| Stores | Flipkart, Amazon | Oppo, Amazon, Flipkart, Croma, Vijay Sales, Reliance Digital | ||
| Launch Country | India | India | ||
| Launch Price | ₹1,05,999 | ₹34,999 |
Display
🏆 Winner: Samsung Galaxy S21 Ultra
| Display Type | AMOLED | AMOLED | ||
|---|---|---|---|---|
| Refresh Rate | 120Hz | 120Hz | ||
| Playback Quality | HDR10+ | SDR | ||
| Display Engine | Dynamic 2X | - | ||
| Display Size | 6.8 inches | 6.57 inches | ||
| Area | 112.1cm² | 105.6cm² | ||
| Display Form Factor | Quad Curved Display | Flat Display | ||
| Screen to Body Ratio | 89.8 | 92.8 | ||
| Resolution Width | 1440 pixels | 1080 pixels | ||
| Resolution Height | 3200 pixels | 2372 pixels | ||
| Aspect Ratio | 20:9 | 20.9 | ||
| Pixel Density | 515ppi | 397ppi | ||
| Display Bit Rate | 8-bit | 10-bit | ||
| Color Gamut Range | 100% | 100% | ||
| Display Resolution | FHD+ | FHD+ | ||
| High Brightness | 1500 nits | 1400 nits | ||
| Peak Brightness | 1500 nits | 1800 nits | ||
| Colour Depth | 16 Million Colours | 1.07 Billion Colours | ||
| LTPS Support | - | Yes | ||
| Touch Sampling Rate | - | 240Hz | ||
| Typical Brightness | - | 600 nits | ||
| Colour Gamut | - | DCI-P3 |
Body
🏆 Winner: Samsung Galaxy S21 Ultra
| Height | 165.1mm | 158.2mm | ||
|---|---|---|---|---|
| Width | 75.6mm | 74.9mm | ||
| Thickness | 8.9mm | 8.1mm | ||
| Weight | 227 grams | 195 grams | ||
| Screen Material | Gorilla Glass Victus | - | ||
| Display Protection | Gorilla Glass Victus | - | ||
| Back Material | Gorilla Glass Victus | Glass | ||
| Side Material | Aluminium Frame | Aluminium Frame | ||
| Build Quality | Corning Gorilla Glass Victus | - | ||
| 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 | - |
Processor
🏆 Winner: Samsung Galaxy S21 Ultra
| Chipset Manufacturer | Samsung | Qualcomm | ||
|---|---|---|---|---|
| Chipset | Exynos 2100 | Snapdragon 6 Gen 1 | ||
| 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 | 4x A78 at 2.2GHz+4x A55 at 1.8GHz | ||
| GPU | Mali-G78 MP14 | Adreno 710 |
Performance Benchmarks
| AnTuTu | 875803 | 554764 | ||
|---|---|---|---|---|
| Geekbench 6 CPU Single-Core | 1356 | 943 |
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 | 8MP | ||
| Main Camera #2 Aperture | f/4.9 | f/2.2 | ||
| Main Camera #2 Focal Length | 240mm | 16mm | ||
| Pixel Size | 1.22µm | - | ||
| Main Camera #2 Lens Type | Periscope | Ultra-wide | ||
| Main Camera #2 Sensor Size | 1/3.24" | 1/4.0" | ||
| Main Camera #2 Camera Features | 10x Optical Zoom, Dual Pixel PDAF, OIS | - | ||
| Main Camera #3 Megapixel | 10MP | 2MP | ||
| Main Camera #3 Aperture | f/2.4 | f/2.4 | ||
| Main Camera #3 Focal Length | 72mm | - | ||
| Main Camera #3 Pixel Size | 1.22µm | - | ||
| Main Camera #3 Lens Type | Telephoto | Macro | ||
| Main Camera #3 Sensor Size | 1/3.24" | - | ||
| Main Camera #3 Camera Features | 3x Optical Zoom, Dual Pixel PDAF, OIS | - | ||
| 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 | Dual View, Google Lens, HDR, Hi-Res Mode, Macro, Night, panorama, portrait, Pro, Slow-Mo, Time Lapse | ||
| Camera Stabilization | OIS | Hybrid Stabilization | ||
| 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 | - | ||
| Optical Zoom Support | 10X | - | ||
| Video Features | gyro-EIS, HDR10+, Stereo Sound Recording | Dual Video, EIS, 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, 720p@120fps, 720p@240fps, 720p@30fps, 720p@60fps | ||
| Main Camera #1 Field of View | - | 79degree | ||
| Main Camera #2 Field of View | - | 112 | ||
| Main Camera #3 Field of View | - | 89 |
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 Gaming, AI HyperBoost, AI LinkBoost, AI Portrait Glow, AI Studio, AI Translate, Call Translator | ||
| Gaming Mode | - | Yes |
Selfie Camera
🏆 Winner: Oppo Reno15c
| 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 | - | ||
| Front Camera #1 Lens Type | Wide | Ultrawide | ||
| Front Camera #1 Sensor Size | 1/2.8" | - | ||
| Front Camera #1 Camera Features | Auto Focus, PDAF | Auto Focus | ||
| Features | Face unlock, HdR | Dual Video, Night, panorama, Portrait, Time Lapse | ||
| Auto Focus Type | Contrast Detection Auto Focus | Contrast Detection Auto Focus | ||
| Video Features | 1080p@30fps, 4k@30/60fps | Dual Video, EIS, Time Lapse | ||
| Video Recording | 4k@30fps, 4k@60fps | 1080@30fps, 4k@30fps | ||
| HDR Recording Support | SDR recording | SDR recording | ||
| Front Camera #1 Field of View | - | 100 |
Battery
🏆 Winner: Oppo Reno15c
| Battery Capacity | 5000mAh | 7000mAh | ||
|---|---|---|---|---|
| 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 | ||
| Reverse Wired Charging Support | - | Yes |
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, 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, 28, 38, 39, 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, 28, 38, 40, 41, 48, 66, 77, 78 |
Connectivity
🏆 Winner: Samsung Galaxy S21 Ultra
| Wi-Fi Standards | Wi-Fi 6E 802.11 a/b/g/n/ac/ax | Wi-Fi 5 802.11 a/b/g/n/ac | ||
|---|---|---|---|---|
| Wi-Fi Version | WiFi 6 | WiFi 5 | ||
| Bluetooth Version | 5.2 | 5.1 | ||
| Bluetooth Codecs | A2DP, AAC, LE | AAC, aptX, aptX HD, LDAC, 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, Color Temperature Sensor, Geomagnetic Sensor, Gyroscope, Proximity Sensor | ||
| Facial Recognition | 2D Face Recognition | 2D Face Recognition |










