Samsung Galaxy S25 vs Samsung Galaxy S21 Ultra
Compare Samsung Galaxy S25 and Samsung Galaxy S21 Ultra to understand which one suits your needs the best. The Samsung Galaxy S25 is priced from ₹74,999, 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.
Samsung Galaxy S25 vs Samsung Galaxy S21 Ultra Comparison Overview
| Key Highlights | Samsung Galaxy S25 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Price | ₹74,999 | ₹47,990 |
| Processor | Qualcomm Snapdragon 8 Elite for Galaxy | Samsung Exynos 2100 |
| Display | 6.2", FHD+ AMOLED, 120Hz | 6.8", FHD+ AMOLED, 120Hz |
| Rear Camera | 50MP (Wide-angle), 10MP (Telephoto), 12MP (Ultra-wide), 12MP (Front) | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) |
| Battery | 4000mAh, 25Watt | 5000mAh, 25Watt |
| RAM/Storage | 12GB (LPDDR5X), 256GB (UFS 4.0) | 12GB (LPDDR5), 256GB (UFS 3.1) |
Performance Scorecard
GamingSee More Details
Samsung Galaxy S25100
Samsung Galaxy S21 Ultra46
CameraSee More Details
Samsung Galaxy S21 Ultra100
Samsung Galaxy S2591
DisplaySee More Details
Samsung Galaxy S25100
Samsung Galaxy S21 Ultra86
BatterySee More Details
Samsung Galaxy S21 Ultra100
Samsung Galaxy S2582
BodySee More Details
Samsung Galaxy S25100
Samsung Galaxy S21 Ultra92
Key Specifications
| Processor | Qualcomm Snapdragon 8 Elite for Galaxy | Samsung Exynos 2100 | ||
|---|---|---|---|---|
| Display | 6.2", FHD+ AMOLED, 120Hz | 6.8", FHD+ AMOLED, 120Hz | ||
| Camera | 50MP (Wide-angle), 10MP (Telephoto), 12MP (Ultra-wide), 12MP (Front) | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) | ||
| Battery | 4000mAh, 25Watt | 5000mAh, 25Watt | ||
| RAM | 12GB (LPDDR5X) | 12GB (LPDDR5) | ||
| Storage | 256GB (UFS 4.0) | 256GB (UFS 3.1) |
General
| Box Contents | Phone, Type-C Cable, SIM Ejector Tool | Phone, Type-C cable, SIM Ejector Tool | ||
|---|---|---|---|---|
| Colors | Icy Blue, Mint, Navy, Silver Shadow, Blueblack, Coralred, Pinkgold | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy | ||
| Launch | January 22, 2025 | January 14, 2021 | ||
| Stores | Flipkart, Amazon, Samsung, Vijay Sales, Croma, Reliance Digital | Flipkart, Amazon | ||
| Launch Country | India | India | ||
| Launch Price | ₹80,999 | ₹1,05,999 |
Display
🏆 Winner: Samsung Galaxy S25
| Display Type | AMOLED | AMOLED | ||
|---|---|---|---|---|
| Refresh Rate | 120Hz | 120Hz | ||
| LTPO Support | Yes | - | ||
| Playback Quality | HDR10+ | HDR10+ | ||
| Display Engine | Dynamic 2X | Dynamic 2X | ||
| Touch Sampling Rate | 240Hz | - | ||
| Anti Reflection Coating | Yes | - | ||
| Display Enhancements | Vision Booster | - | ||
| Display Size | 6.2 inches | 6.8 inches | ||
| Area | 94.4cm² | 112.1cm² | ||
| Display Form Factor | Flat Display | Quad Curved Display | ||
| Screen to Body Ratio | 90.7 | 89.8 | ||
| Resolution Width | 1080 pixels | 1440 pixels | ||
| Resolution Height | 2340 pixels | 3200 pixels | ||
| Aspect Ratio | 19.5:9 | 20:9 | ||
| Pixel Density | 416ppi | 515ppi | ||
| Display Bit Rate | 10-bit | 8-bit | ||
| Color Gamut Range | 100% | 100% | ||
| Display Resolution | FHD+ | FHD+ | ||
| Typical Brightness | 500 nits | - | ||
| Peak Brightness | 2600 nits | 1500 nits | ||
| Eye Protection | Eye Comfort Shield | - | ||
| Colour Gamut | DCI-P3 | - | ||
| Colour Depth | 16 Million Colours | 16 Million Colours | ||
| High Brightness | - | 1500 nits |
Body
🏆 Winner: Samsung Galaxy S25
| Height | 146.9mm | 165.1mm | ||
|---|---|---|---|---|
| Width | 70.5mm | 75.6mm | ||
| Thickness | 7.2mm | 8.9mm | ||
| Weight | 162 grams | 227 grams | ||
| Screen Material | Gorilla Glass Victus 2 | Gorilla Glass Victus | ||
| Display Protection | Gorilla Glass Victus 2 | Gorilla Glass Victus | ||
| Back Material | Gorilla Glass Victus 2 | Gorilla Glass Victus | ||
| Side Material | Armor Aluminium | Aluminium Frame | ||
| Build Quality | Corning Gorilla Glass victus 2 | Corning Gorilla Glass Victus | ||
| Ports | Display Port 1.2, USB Type-C 3.2 | USB Type-C 3.1 Gen 1 | ||
| Additional Features | OTG, USB Type-C (bottom) | OTG | ||
| IP Rating | IP68/69 (Dust and Water Resistant) | IP68 (Dust and Water Resistant) | ||
| Speaker | Stereo Speakers | Stereo Speakers | ||
| Sound Tuning | Dolby Atmos | No Tuning |
Processor
🏆 Winner: Samsung Galaxy S25
| Chipset Manufacturer | Qualcomm | Samsung | ||
|---|---|---|---|---|
| Chipset | Snapdragon 8 Elite for Galaxy | Exynos 2100 | ||
| Fabrication Size | 3nm | 5nm | ||
| Number of Cores | Octa-core | Octa-core | ||
| Clock Speed | 2x4.47 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 | Vapor Chamber Cooling | - | ||
| GPU | Adreno 830 | Mali-G78 MP14 |
Performance Benchmarks
| AnTuTu | 2798283 | 875803 | ||
|---|---|---|---|---|
| Geekbench 6 CPU Single-Core | 2617 | 1356 | ||
| Geekbench 6 CPU Multi-Core | 9137 | 3348 |
Main Camera
🏆 Winner: Samsung Galaxy S21 Ultra
| Main Camera #1 Megapixel | 50MP | 108MP | ||
|---|---|---|---|---|
| Main Camera #1 Aperture | f/1.8 | f/1.8 | ||
| Main Camera #1 Focal Length | 24mm | 24mm | ||
| Main Camera #1 Pixel Size | 1µm | 0.8µm | ||
| Main Camera #1 Lens Type | Wide-angle | Wide-angle | ||
| Main Camera #1 Sensor Size | 1/1.57" | 1/1.33" | ||
| Main Camera #1 Camera Features | Dual Pixel PDAF, OIS | OIS, PDAF | ||
| Main Camera #2 Megapixel | 10MP | 10MP | ||
| Main Camera #2 Aperture | f/2.4 | f/4.9 | ||
| Main Camera #2 Focal Length | 67mm | 240mm | ||
| Pixel Size | 1µm | 1.22µm | ||
| Main Camera #2 Lens Type | Telephoto | Periscope | ||
| Main Camera #2 Camera Sensor | Samsung S5K3K1 | - | ||
| Main Camera #2 Sensor Size | 1/3.94" | 1/3.24" | ||
| Main Camera #2 Camera Features | 3x Optical Zoom, OIS, PDAF | 10x Optical Zoom, Dual Pixel PDAF, OIS | ||
| Main Camera #3 Megapixel | 12MP | 10MP | ||
| Main Camera #3 Aperture | f/2.2 | f/2.4 | ||
| Main Camera #3 Focal Length | 13mm | 72mm | ||
| Main Camera #3 Field of View | 120 | - | ||
| Main Camera #3 Lens Type | Ultra-wide | Telephoto | ||
| Main Camera #3 Camera Sensor | Sony IMX564 | - | ||
| Main Camera #3 Sensor Size | 1/2.55" | 1/3.24" | ||
| Main Camera #3 Camera Features | Super Steady Video | 3x Optical Zoom, Dual Pixel PDAF, OIS | ||
| Features | Adaptive VDIS, Continuous Shooting, Digital zoom, Dual View, Expert RAW, Geotagging, HDR, Laser Auto Focus, Night mode, OIS, Optical Zoom, panorama, PDAF, Portrait mode, Portrait Photo & Video, Pro mode, Slow Motion | Laser AF | ||
| Camera Stabilization | OIS | OIS | ||
| Raw Photo Support | Yes | - | ||
| Dynamic Video Recording Support | HDR 10+ recording | HDR 10+ recording | ||
| Stereo Sound Recording Support | Yes | Yes | ||
| Slow Motion Recording | 240 fps slomo | 960 fps slomo | ||
| Auto Focus Type | PDAF | PDAF | ||
| Dedicated Imaging Chip | No Chip | - | ||
| Zoom Capability | 20-50X | - | ||
| Lens Enhancements | No enhancement | No enhancement | ||
| Optical Zoom Support | 3X | 10X | ||
| Video Features | 10-bit HDR, gyro-EIS, HDR10+, Stereo Sound Recording | gyro-EIS, HDR10+, Stereo Sound Recording | ||
| Video Recording | 1080p@240fps, 1080p@30fps, 1080p@60fps, 4K@30fps, 4K@60fps, 8K@24fps, 8K@30fps | 1080p@120fps, 1080p@240fps, 1080p@30fps, 1080p@60fps, 4K@30fps, 4K@60fps, 720p@960fps, 8K@24fps | ||
| Log Video Recording Support | Yes | - | ||
| Main Camera #3 Pixel Size | - | 1.22µm | ||
| 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 |
Operating System
| OS Name | Android | Android | ||
|---|---|---|---|---|
| OS Version | 15 | 11 | ||
| OS Skin | One UI | One UI | ||
| Inbuilt AI | Galaxy AI | - | ||
| Gaming Mode | Yes | - | ||
| Desktop Mode | Yes | - | ||
| AI Frame Interpolation | Yes | - | ||
| Bloatware Free OS | Yes | - | ||
| OS Updates | 7 year(s) | 4 year(s) | ||
| Security Updates | 7 year(s) | 5 year(s) | ||
| AI Features | Browsing assist, Call assist, Chat assist, Drawing Assist, Gemini integration, Interpreter, Note assist, Now Brief, Personalised AI features, Photo assist, Writing Assist | Circle to Search |
Selfie Camera
🏆 Winner: Samsung Galaxy S25
| Front Camera #1 Megapixel | 12MP | 40MP | ||
|---|---|---|---|---|
| Front Camera #1 Aperture | f/2.2 | f/2.2 | ||
| Front Camera #1 Focal Length | 26mm | 26mm | ||
| Front Camera #1 Pixel Size | 1.12µm | 0.7µm | ||
| Front Camera #1 Field of View | 80 | - | ||
| Front Camera #1 Lens Type | Wide | Wide | ||
| Front Camera #1 Camera Sensor | Samsung ISOCELL S5K3LU | - | ||
| Front Camera #1 Sensor Size | 1/3.2" | 1/2.8" | ||
| Front Camera #1 Camera Features | Dual Pixel PDAF | Auto Focus, PDAF | ||
| Features | Auto Focus, Auto HDR, Dual Video Call, Dual-pixel PDAF, HDR10+, Night mode, Palm shutter, Portrait Mode, Screen flash | Face unlock, HdR | ||
| Auto Focus Type | PDAF | Contrast Detection Auto Focus | ||
| Video Features | 1080p@30fps, 4k@30/60fps, Dual Video, EIS, Stereo Sound Recording | 1080p@30fps, 4k@30/60fps | ||
| Video Recording | 1080@30fps, 4k@30fps, 4k@60fps | 4k@30fps, 4k@60fps | ||
| HDR Recording Support | HDR recording | SDR recording |
Battery
🏆 Winner: Samsung Galaxy S21 Ultra
| Battery Capacity | 4000mAh | 5000mAh | ||
|---|---|---|---|---|
| Battery Type | Lithium Ion | Lithium Ion | ||
| Wireless Charging Support | Yes | Yes | ||
| Reverse Wireless Charging Support | Yes | Yes | ||
| Reverse Wired Charging Support | Yes | - | ||
| Bypass Charging Support | Yes | - | ||
| Charging Speed Wired | 25W | 25W | ||
| Charging Speed Wireless | 15W | 15W | ||
| Charging Speed Reverse Wireless | 4.5W | 4.5W | ||
| Charging Standards Supported | PD3.0, Qi2 | PD3.0, Qi |
Network
| Sim Type | Dual SIM (nano-SIM, eSIM, 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, UMTS, WCDMA | 5G, GSM, LTE FDD, LTE TD, UMTS, WCDMA | ||
| 2G Bands | 1800, 1900, 850, 900 | 1800, 1900, 850, 900 | ||
| 3G Bands | UMTS/WCDMA 1, 2, 4, 5, 8 | 1, 2, 4, 5, 8 | ||
| 4G Bands | LTE 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 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/Sub6 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 77, 78 | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 |
Connectivity
🏆 Winner: Samsung Galaxy S25
| Wi-Fi Standards | Wi-Fi 7 802.11 a/b/g/n/ac/ax/be | Wi-Fi 6E 802.11 a/b/g/n/ac/ax | ||
|---|---|---|---|---|
| Wi-Fi Version | WiFi 7 | WiFi 6 | ||
| Bluetooth Version | 5.4 | 5.2 | ||
| Bluetooth Codecs | A2DP, LE | A2DP, AAC, LE | ||
| GPS | Beidou, Galileo, Glonass, GPS, QZSS | 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, Compass, Geomagnetic Sensor, Gyroscope, Hall Sensor, Light Sensor, Proximity Sensor | 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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