Xiaomi 15 vs Samsung Galaxy S21 Ultra
Compare Xiaomi 15 and Samsung Galaxy S21 Ultra to understand which one suits your needs the best. The Xiaomi 15 is priced from ₹64,999, while Samsung Galaxy S21 Ultra is available at ₹47,990 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.
Xiaomi 15 vs Samsung Galaxy S21 Ultra Comparison Overview
| Key Highlights | Xiaomi 15 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Price | ₹64,999 | ₹47,990 |
| Processor | Qualcomm Snapdragon 8 Elite | Samsung Exynos 2100 |
| Display | 6.36", 1.5K AMOLED, 120Hz | 6.8", FHD+ AMOLED, 120Hz |
| Rear Camera | 50MP (Wide-angle), 50MP (Telephoto), 50MP (Ultra-wide), 32MP (Front) | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) |
| Battery | 5240mAh, 90Watt, Charger in the box | 5000mAh, 25Watt |
| RAM/Storage | 12GB (LPDDR5X), 512GB (UFS 4.0) | 12GB (LPDDR5), 256GB (UFS 3.1) |
Performance Scorecard
GamingSee More Details
Xiaomi 15100
Samsung Galaxy S21 Ultra49
CameraSee More Details
Xiaomi 15100
Samsung Galaxy S21 Ultra82
DisplaySee More Details
Xiaomi 15100
Samsung Galaxy S21 Ultra73
BatterySee More Details
Xiaomi 15100
Samsung Galaxy S21 Ultra53
BodySee More Details
Samsung Galaxy S21 Ultra100
Xiaomi 1589
Key Specifications
| Processor | Qualcomm Snapdragon 8 Elite | Samsung Exynos 2100 | ||
|---|---|---|---|---|
| Display | 6.36", 1.5K AMOLED, 120Hz | 6.8", FHD+ AMOLED, 120Hz | ||
| Camera | 50MP (Wide-angle), 50MP (Telephoto), 50MP (Ultra-wide), 32MP (Front) | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) | ||
| Battery | 5240mAh, 90Watt, Charger in the box | 5000mAh, 25Watt | ||
| RAM | 12GB (LPDDR5X) | 12GB (LPDDR5) | ||
| Storage | 512GB (UFS 4.0) | 256GB (UFS 3.1) |
General
| Box Contents | Phone, 90W Charger, Type-C Cable, Case, SIM Ejector Tool | Phone, Type-C cable, SIM Ejector Tool | ||
|---|---|---|---|---|
| Colors | Black, Green, White | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy | ||
| Launch | March 11, 2025 | January 14, 2021 | ||
| Stores | Xiaomi, Amazon, Flipkart, Reliance Digital | Flipkart, Amazon | ||
| Launch Country | India | India | ||
| Launch Price | ₹64,999 | ₹1,05,999 |
Display
🏆 Winner: Xiaomi 15
| Display Type | AMOLED | AMOLED | ||
|---|---|---|---|---|
| Refresh Rate | 120Hz | 120Hz | ||
| LTPO Support | Yes | - | ||
| Playback Quality | Dolby Vision | HDR10+ | ||
| Display Engine | Pro HDR | Dynamic 2X | ||
| Touch Sampling Rate | 300Hz | - | ||
| Display Size | 6.36 inches | 6.8 inches | ||
| Area | 97.6cm² | 112.1cm² | ||
| Display Form Factor | Flat Display | Quad Curved Display | ||
| Screen to Body Ratio | 90 | 89.8 | ||
| Resolution Width | 1200 pixels | 1440 pixels | ||
| Resolution Height | 2670 pixels | 3200 pixels | ||
| Aspect Ratio | 20:9 | 20:9 | ||
| Pixel Density | 460ppi | 515ppi | ||
| Display Bit Rate | 12-bit | 8-bit | ||
| Color Gamut Range | 100% | 100% | ||
| Display Resolution | 1.5K | FHD+ | ||
| Peak Brightness | 3200 nits | 1500 nits | ||
| Eye Protection | TUV Rheinland certification | - | ||
| Contrast Ratio | 8,000,000:1 | - | ||
| Colour Gamut | DCI-P3 | - | ||
| Colour Depth | 68 Billion Colours | 16 Million Colours | ||
| High Brightness | - | 1500 nits |
Body
🏆 Winner: Samsung Galaxy S21 Ultra
| Height | 152.3mm | 165.1mm | ||
|---|---|---|---|---|
| Width | 71.2mm | 75.6mm | ||
| Thickness | 8.08mm | 8.9mm | ||
| Weight | 191 grams | 227 grams | ||
| Screen Material | Xiaomi Shield Glass | Gorilla Glass Victus | ||
| Display Protection | Xiaomi Shield Glass | Gorilla Glass Victus | ||
| Back Material | Glass | Gorilla Glass Victus | ||
| Side Material | Aluminium Frame | Aluminium Frame | ||
| Build Quality | Xiaomi Shield Glass | Corning Gorilla Glass Victus | ||
| Ports | USB Type-C 3.2 | USB Type-C 3.1 Gen 1 | ||
| Additional Features | USB Type-C (bottom) | OTG | ||
| IP Rating | IP68 (Dust and Water Resistant) | IP68 (Dust and Water Resistant) | ||
| Speaker | Stereo Speakers | Stereo Speakers | ||
| Sound Tuning | Dolby Atmos | No Tuning |
Processor
🏆 Winner: Xiaomi 15
| Chipset Manufacturer | Qualcomm | Samsung | ||
|---|---|---|---|---|
| Chipset | Snapdragon 8 Elite | Exynos 2100 | ||
| Fabrication Size | 3nm | 5nm | ||
| Number of Cores | Octa-core | Octa-core | ||
| Clock Speed | 2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M | 1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55 | ||
| Cooling System | Xiaomi IceLoop System | - | ||
| GPU | Adreno 830 | Mali-G78 MP14 |
Performance Benchmarks
| AnTuTu | 2745854 | 875803 | ||
|---|---|---|---|---|
| Geekbench 6 CPU Single-Core | 3155 | 1356 |
Main Camera
🏆 Winner: Xiaomi 15
| Main Camera #1 Megapixel | 50MP | 108MP | ||
|---|---|---|---|---|
| Main Camera #1 Aperture | f/1.62 | f/1.8 | ||
| Main Camera #1 Focal Length | 23mm | 24mm | ||
| Main Camera #1 Pixel Size | 2.4µm | 0.8µm | ||
| Main Camera #1 Field of View | 86degree | - | ||
| Main Camera #1 Lens Type | Wide-angle | Wide-angle | ||
| Main Camera #1 Camera Sensor | Light Fusion 900 | - | ||
| Main Camera #1 Sensor Size | 1/1.31" | 1/1.33" | ||
| Main Camera #1 Camera Features | Dual Pixel PDAF, OIS | OIS, PDAF | ||
| Main Camera #2 Megapixel | 50MP | 10MP | ||
| Main Camera #2 Aperture | f/2.0 | f/4.9 | ||
| Main Camera #2 Focal Length | 60mm | 240mm | ||
| Pixel Size | 0.8µm | 1.22µm | ||
| Main Camera #2 Field of View | 39 | - | ||
| Main Camera #2 Lens Type | Telephoto | Periscope | ||
| Main Camera #2 Camera Sensor | Samsung ISOCELL JN | - | ||
| Main Camera #2 Sensor Size | 1/2.76" | 1/3.24" | ||
| Main Camera #2 Camera Features | OIS, PDAF | 10x Optical Zoom, Dual Pixel PDAF, OIS | ||
| Main Camera #3 Megapixel | 50MP | 10MP | ||
| Main Camera #3 Aperture | f/2.2 | f/2.4 | ||
| Main Camera #3 Focal Length | 14mm | 72mm | ||
| Main Camera #3 Pixel Size | 1.12µm | 1.22µm | ||
| Main Camera #3 Field of View | 115 | - | ||
| Main Camera #3 Lens Type | Ultra-wide | Telephoto | ||
| Main Camera #3 Sensor Size | 1/2.76" | 1/3.24" | ||
| Features | Dual LED Dual Tone Flash, HDR, Laser Auto Focus | Laser AF | ||
| Camera Stabilization | Hybrid Stabilization | OIS | ||
| Raw Photo Support | Yes | - | ||
| Dynamic Video Recording Support | HDR 10+ recording | HDR 10+ recording | ||
| Stereo Sound Recording Support | Yes | Yes | ||
| Slow Motion Recording | 960 fps slomo | 960 fps slomo | ||
| Auto Focus Type | Dual Pixel Auto Focus | PDAF | ||
| Zoom Capability | 50-100X | - | ||
| Lens Enhancements | Leica | No enhancement | ||
| Video Features | 10-bit Log, 10-bit rec., Dolby Vision, gyro-EIS, HDR, HDR10+ | gyro-EIS, HDR10+, Stereo Sound Recording | ||
| Video Recording | 1080p@120fps, 1080p@240fps, 1080p@30fps, 1080p@60fps, 1080p@960fps, 4K@24fps, 4K@30fps, 4K@60fps, 720p@1920fps, 8K@24fps, 8K@30fps | 1080p@120fps, 1080p@240fps, 1080p@30fps, 1080p@60fps, 4K@30fps, 4K@60fps, 720p@960fps, 8K@24fps | ||
| 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 | ||
| Optical Zoom Support | - | 10X |
Operating System
| OS Name | Android | Android | ||
|---|---|---|---|---|
| OS Version | 15 | 11 | ||
| OS Skin | Xiaomi HyperOS | One UI | ||
| Inbuilt AI | Qualcomm AI Engine | - | ||
| Gaming Mode | Yes | - | ||
| Bloatware Free OS | Yes | - | ||
| OS Updates | 4 year(s) | 4 year(s) | ||
| Security Updates | 6 year(s) | 5 year(s) | ||
| AI Features | AI Assistant, AI Photo Enhancements, AI Remover, AI Summary | Circle to Search |
Selfie Camera
🏆 Winner: Xiaomi 15
| Front Camera #1 Megapixel | 32MP | 40MP | ||
|---|---|---|---|---|
| Front Camera #1 Aperture | f/2.0 | f/2.2 | ||
| Front Camera #1 Focal Length | 21mm | 26mm | ||
| Front Camera #1 Pixel Size | 0.7µm | 0.7µm | ||
| Front Camera #1 Field of View | 90 | - | ||
| Front Camera #1 Lens Type | Wide | Wide | ||
| Front Camera #1 Sensor Size | 1/3.1" | 1/2.8" | ||
| Front Camera #1 Camera Features | Auto Focus, Digital Zoom, gyro-EIS | Auto Focus, PDAF | ||
| Features | HDR Photos, Palm shutter, Portrait Mode, Screen flash, Time Lapse | Face unlock, HdR | ||
| Auto Focus Type | Dual Pixel Auto Focus | Contrast Detection Auto Focus | ||
| Video Features | 1080p@30/60fps, gyro-EIS | 1080p@30fps, 4k@30/60fps | ||
| Video Recording | 4k@60fps | 4k@30fps, 4k@60fps | ||
| HDR Recording Support | HDR 10+ recording | SDR recording |
Camera Samples
Selfie
Selfie
Selfie Portrait
Selfie Portrait
Main Night
Main Night
Ultra Wide Night
Ultra Wide Night
Battery
🏆 Winner: Xiaomi 15
| Battery Capacity | 5240mAh | 5000mAh | ||
|---|---|---|---|---|
| Battery Type | Silicon Carbon | Lithium Ion | ||
| Wireless Charging Support | Yes | Yes | ||
| Reverse Wireless Charging Support | Yes | Yes | ||
| Charging Speed Wired | 90W | 25W | ||
| Charging Speed Wireless | 50W | 15W | ||
| Charging Speed Reverse Wireless | 10W | 4.5W | ||
| Charging Standards Supported | PD2.0, PD3.0, QC2.0, QC3.0, QC3+, Xiaomi MI FC 2.0 | PD3.0, Qi |
Network
| Sim Type | Dual SIM (nano-SIM & e-SIM) or Dual SIM (nano-SIM, dual stand-by) | nano-SIM and eSIM or Dual SIM (2 nano-SIM and eSIM, dual stand-by) | ||
|---|---|---|---|---|
| Network Support | 5G | 5G | ||
| Band Types | 5G, GSM, LTE FDD, LTE TD, WCDMA | 5G, GSM, LTE FDD, LTE TD, UMTS, WCDMA | ||
| 2G Bands | 2, 3, 5, 8 | 1800, 1900, 850, 900 | ||
| 3G Bands | WCDMA 1, 2, 4, 5, 6, 8, 19 | 1, 2, 4, 5, 8 | ||
| 4G Bands | LTE 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 39, 40, 41, 42, 48, 66 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 | ||
| 5G Bands | SA/NSA 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 75, 77, 78 | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 |
Connectivity
🏆 Winner: Xiaomi 15
| Wi-Fi Standards | Wi-Fi 6 802.11 a/b/g/n/ac/ax | Wi-Fi 6E 802.11 a/b/g/n/ac/ax | ||
|---|---|---|---|---|
| Wi-Fi Version | WiFi 6 | WiFi 6 | ||
| Bluetooth Version | 6 | 5.2 | ||
| Bluetooth Codecs | A2DP, aptX Adaptive, aptX HD, LE, LHDC 5.0 | A2DP, AAC, LE | ||
| GPS | A-GPS, Beidou, Galileo (E1+E5a), GLONASS (G1), GPS (L1+L5), NavIC (L5), QZSS (L1+L5) | BeiDou, GALILEO, GLONASS, GPS | ||
| NFC Support | Supported | Supported | ||
| Radio | - | FM Radio |
Features
| Fingerprint Scanner | Ultrasonic (under display) | Optical (under display) | ||
|---|---|---|---|---|
| Sensors on Board | Accelerometer, Ambient Light Sensor, Barometer Sensor, E-Compass, Gyroscope, IR Blaster, Proximity Sensor, Two-way Satellite Communication | Accelerometer, Barometer Sensor, Geomagnetic Sensor, Gyroscope, Hall Sensor, Light Sensor, Proximity Sensor, Samsung DeX, Ultra Wideband (UWB) Support | ||
| Haptic Feedback | X-axis Linear Motor | - | ||
| Facial Recognition | 2D Face Recognition | 2D Face Recognition |
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