Samsung Galaxy S25 Ultra vs Samsung Galaxy S21
Compare Samsung Galaxy S25 Ultra and Samsung Galaxy S21 to understand which one suits your needs the best. The Samsung Galaxy S25 Ultra is priced from ₹88,293, while Samsung Galaxy S21 is available at ₹69,999 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 S25 Ultra vs Samsung Galaxy S21 Comparison Overview
| Key Highlights | Samsung Galaxy S25 Ultra | Samsung Galaxy S21 |
|---|---|---|
| Price | ₹88,293 | ₹69,999 |
| Processor | Qualcomm Snapdragon 8 Elite for Galaxy | Samsung Exynos 2100 |
| Display | 6.9 inches, QHD+ AMOLED, 120Hz | 6.2 inches, FHD+ AMOLED, 120Hz |
| Rear Camera | 200MP (Wide-angle), 50MP (Ultra-wide), 10MP (Telephoto), 50MP (PeriscopeMP), 12MP (Front) | 12MP (Wide-angle), 64MP (Telephoto), 12MP (Ultra-wide), 10MP (Front) |
| Battery | 5000mAh, 45W | 4000mAh, 25W, Charger in the box |
| RAM/Storage | 12GB (LPDDR5X), 256GB (UFS 4.0) | 8GB (LPDDR5), 128GB (UFS 3.1) |
Reasons To Consider
→ Samsung Galaxy S25 Ultra
Faster processor for smoother multitasking and demanding mobile gaming - (Snapdragon 8 Elite for Galaxy)Larger battery capacity for longer usage - (5000mAh)Bigger RAM for smoother app switching and multitasking - (12GB)Features a crispier and higher resolution display - (QHD+)Faster wired charging speeds for noticeably shorter charge times - (45W)Higher optical zoom for clearer, detailed shots of distant subjects - (5X Zoom)
Faster processor for smoother multitasking and demanding mobile gaming - (Snapdragon 8 Elite for Galaxy)Larger battery capacity for longer usage - (5000mAh)Bigger RAM for smoother app switching and multitasking - (12GB)Features a crispier and higher resolution display - (QHD+)Faster wired charging speeds for noticeably shorter charge times - (45W)Higher optical zoom for clearer, detailed shots of distant subjects - (5X Zoom) → Samsung Galaxy S21Comes with a clean, unbloated software interfaceThinner, lightweight design offering comfortable one-handed handling - (7.9 mm)
Comes with a clean, unbloated software interfaceThinner, lightweight design offering comfortable one-handed handling - (7.9 mm)GamingSee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S2173
CameraSee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S2164
DisplaySee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S2186
BatterySee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S2171
BodySee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S2181
Key Specifications
| Qualcomm Snapdragon 8 Elite for Galaxy | Samsung Exynos 2100 | ||
| 6.9 inches, QHD+ AMOLED, 120Hz | 6.2 inches, FHD+ AMOLED, 120Hz | ||
| 200MP (Wide-angle), 50MP (Ultra-wide), 10MP (Telephoto), 50MP (PeriscopeMP), 12MP (Front) | 12MP (Wide-angle), 64MP (Telephoto), 12MP (Ultra-wide), 10MP (Front) | ||
| 5000mAh, 45W | 4000mAh, 25W, Charger in the box | ||
| 12GB (LPDDR5X) | 8GB (LPDDR5) | ||
| 256GB (UFS 4.0) | 128GB (UFS 3.1) |
General
| Box Contents | Phone, S-Pen, Type-C Cable, SIM Ejector Tool | Phone, Type-C cable, SIM Ejector Tool | ||
|---|---|---|---|---|
| Launch Price | ₹1,29,999 | ₹69,999 |
Display
🏆 Winner: Samsung Galaxy S25 Ultra
| Display Type | AMOLED | AMOLED | ||
|---|---|---|---|---|
| Refresh Rate | 120Hz | 120Hz | ||
| LTPO Support | Yes | - | ||
| Playback Quality | HDR10+ | HDR10+ | ||
| Display Engine | Dynamic 2X | Dynamic 2X | ||
| Touch Sampling Rate | 360Hz | 240Hz | ||
| Anti Reflection Coating | Yes | - | ||
| Display Enhancements | Adaptive Colour Tone | - | ||
| Display Size | 6.9 inches | 6.2 inches | ||
| Area | 116.9 cm² | 94.1 cm² | ||
| Display Form Factor | Flat Display | Flat Display | ||
| Screen to Body Ratio | 92.5% | 87.2% | ||
| Resolution Width | 1440pixels | 1080pixels | ||
| Resolution Height | 3120pixels | 2400pixels | ||
| Aspect Ratio | 19.5:9 | 20:9 | ||
| Pixel Density | 498ppi | 421ppi | ||
| Display Bit Rate | 8-bit | - | ||
| Color Gamut Range | 100% | 100% | ||
| Display Resolution | QHD+ | FHD+ | ||
| Typical Brightness | 800nits | - | ||
| High Brightness | 1400nits | - | ||
| Peak Brightness | 2600nits | 1300nits | ||
| Eye Protection | Eye Comfort Shield | Eye Comfort Shield | ||
| Contrast Ratio | 5,000,000:1 | - | ||
| Colour Gamut | DCI-P3 | - | ||
| Colour Depth | 16.7 Million Colours | 16 Million Colours | ||
| LTPS Support | - | Yes |
Body
🏆 Winner: Samsung Galaxy S25 Ultra
| Height | 162.8 mm | 151.7 mm | ||
|---|---|---|---|---|
| Width | 77.6 mm | 71.2 mm | ||
| Thickness | 8.2 mm | 7.9 mm | ||
| Weight | 218 grams | 169 grams | ||
| Screen Material | Gorilla Glass Armour 2.0 | Gorilla Glass Victus | ||
| Display Protection | Gorilla Glass Armour 2.0 | Gorilla Glass Victus | ||
| Back Material | Gorilla Glass Victus 2 | Plastic | ||
| Side Material | Titanium Frame | Aluminium Frame | ||
| Build Quality | Corning Gorilla Glass Armour 2.0 | Corning Gorilla Glass Victus | ||
| Ports | DisplayPort 1.4, USB Type-C 3.2 Gen 1 | USB Type-C 3.2 | ||
| Additional Features | USB Type-C (bottom) | OTG | ||
| IP Rating | IP68 (Dust and Water Resistant) | IP68 (Dust and Water Resistant) | ||
| Speaker | Stereo Speakers | Stereo Speakers, Tuned by AKG | ||
| Sound Tuning | Dolby Atmos | - |
Processor
🏆 Winner: Samsung Galaxy S25 Ultra
| Chipset Manufacturer | Qualcomm | Samsung | ||
|---|---|---|---|---|
| Chipset | Snapdragon 8 Elite for Galaxy | Exynos 2100 | ||
| Fabrication Size | 3 nm | 5 nm | ||
| 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 | Vapor Chamber Cooling | - | ||
| GPU | Adreno 830 | Mali-G78 MP14 |
Gaming Benchmarks
| BGMI Super Smooth + Ultra Extreme | 118.3 FPS 38.4 °C (Temp) | - | ||
|---|---|---|---|---|
| Genshin Impact Highest + 60FPS (Android) | 59.8 FPS 39.8 °C (Temp) | - |
Performance Benchmarks
| AnTuTu | 3003959 | 1082111 | ||
|---|---|---|---|---|
| Geekbench 6 CPU Single-Core | 2974 | 1492 | ||
| Geekbench 6 CPU Multi-Core | 9558 | 3802 |
Operating System
| OS Name | Android | Android | ||
|---|---|---|---|---|
| OS Version | 15 | 11 | ||
| OS Skin | One UI | One UI | ||
| Inbuilt AI | Galaxy AI | Neural Processing Unit(Samsung) | ||
| Gaming Mode | Yes | - | ||
| Desktop Mode | Yes | - | ||
| AI Frame Interpolation | Yes | - | ||
| OS Updates | 7 year(s) | 4 year(s) | ||
| Security Updates | 7 year(s) | 5 year(s) | ||
| AI Features | AI Document Scanning, AI Image Studio, AI Transcript Assist, Audio Eraser, Best Face, Call Transcript, Circle to Search, Drawing Assist, Gemini integration, Google Gemini, Interpreter, Now Brief, Personalised AI features, Photo assist, Writing Assist | Circle to Search | ||
| Bloatware Free OS | - | Yes |
Main Camera
🏆 Winner: Samsung Galaxy S25 Ultra
| Main Camera Megapixel | 200MP | 12MP | ||
|---|---|---|---|---|
| Main Camera Aperture | f/1.7 | f/1.8 | ||
| Main Camera Lens Type | Wide-angle | Wide-angle | ||
| Main Camera Camera Sensor | Samsung ISOCELL HP2 | - | ||
| Main Camera Sensor Size | 1/1.3" | 1/1.76" | ||
| Main Camera Camera Features | Multi-directional PDAF, OIS | Dual Pixel PDAF, OIS | ||
| Main Camera #2 Megapixel | 50MP | 64MP | ||
| Main Camera #2 Aperture | f/1.9 | f/2.0 | ||
| Main Camera #2 Field of View | 120° | - | ||
| Main Camera #2 Lens Type | Ultra-wide | Telephoto | ||
| Main Camera #2 Sensor Size | 1/2.55" | 1/1.72" | ||
| Main Camera #2 Camera Features | Dual Pixel PDAF, Super Steady Video | 1.1x Optical Zoom, Hybrid Zoom, OIS, PDAF | ||
| Main Camera #3 Megapixel | 10MP | 12MP | ||
| Main Camera #3 Aperture | f/2.4 | f/2.2 | ||
| Main Camera #3 Field of View | 36° | 120° | ||
| Main Camera #3 Lens Type | Telephoto | Ultra-wide | ||
| Main Camera #3 Camera Sensor | Sony IMX700 | - | ||
| Main Camera #3 Sensor Size | 1/3.52" | 1/2.55" | ||
| Main Camera #3 Camera Features | 3x Optical Zoom, OIS, PDAF | Super Steady Video | ||
| Main Camera #4 Megapixel | 50MP | - | ||
| Main Camera #4 Aperture | f/3.4 | - | ||
| Main Camera #4 Field of View | 22° | - | ||
| Main Camera #4 Lens Type | Periscope | - | ||
| Main Camera #4 Camera Sensor | Sony IMX800 | - | ||
| Main Camera #4 Camera Features | 5x Optical Zoom, OIS, PDAF | - | ||
| Features | Adaptive VDIS, Continuous Shooting, Expert RAW, Filter, HDR, Laser Auto Focus, Night mode, OIS, panorama, PDAF, Portrait mode, Pro Mode (long exposure) | LED flash | ||
| Camera Stabilization | Hybrid Stabilization | OIS | ||
| Raw Photo Support | Yes | 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 | Multi-Directional PDAF | Dual Pixel Auto Focus | ||
| Max Zoom Supported | 50-100X | 2-10X | ||
| Optical Zoom Support | 5X | 3X | ||
| Video Features | 10-bit HDR, Expert RAW, gyro-EIS, HDR10+, Log Video, Stereo Sound Recording, UHD Video Recording | gyro-EIS, HDR10+, Stereo Sound Recording | ||
| Video Recording | 1080p@240fps, 1080p@30fps, 1080p@60fps, 4K@120fps, 4K@30fps, 4K@60fps, 8K@24fps, 8K@30fps | 1080p@240fps, 1080p@30fps, 1080p@60fps, 4K@120fps, 4K@30fps, 4K@60fps, 720p@960fps, 8K@24fps | ||
| Log Video Recording Support | Yes | - |
Selfie Camera
🏆 Winner: Samsung Galaxy S25 Ultra
| Front Camera #1 Megapixel | 12MP | 10MP | ||
|---|---|---|---|---|
| Front Camera #1 Aperture | f/2.2 | f/2.2 | ||
| Front Camera #1 Focal Length | 26 mm | 26 mm | ||
| Front Camera #1 Pixel Size | 1.12 µm | 1.22 µm | ||
| Front Camera #1 Field of View | 26° | - | ||
| Front Camera #1 Lens Type | Wide | Wide | ||
| Front Camera #1 Camera Sensor | Samsung S5K3P9 | - | ||
| Front Camera #1 Sensor Size | 1/4.0" | 1/3.24" | ||
| Front Camera #1 Camera Features | Auto Focus, Dual Pixel PDAF | Dual Pixel PDAF | ||
| Features | Auto Focus, Auto HDR, Digital Zoom, HDR10+, Laser Auto Focus, LED flash, panorama, Portrait Mode | Auto-HDR, Dual Video Call | ||
| Auto Focus Type | Laser Auto Focus | Dual Pixel Auto Focus | ||
| Video Features | 1080p@30fps, 4k@30fps, HDR10+ | 1080p@30fps, 4k@30/60fps | ||
| Video Recording | 1080@30fps, 4k@30fps, 4k@60fps | 1080@30fps, 4k@60fps | ||
| HDR Recording Support | HDR 10+ recording | SDR recording |
Camera Samples
Main Day
Main Day
Main Night
Main Night
Telephoto Camera Portrait
Telephoto Camera Portrait
Telephoto Day 3x
Telephoto Day 3x
Telephoto Day 5x
Telephoto Day 5x
Ultrawide Day
Ultrawide Day
Ultra Wide Night
Ultra Wide Night
Battery
🏆 Winner: Samsung Galaxy S25 Ultra
| Battery Capacity | 5000mAh | 4000mAh | ||
|---|---|---|---|---|
| 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 | 45W | 25W | ||
| Charging Speed Wireless | 15W | 15W | ||
| Charging Speed Reverse Wireless | 4.5W | 4.5W | ||
| Charging Standards Supported | PD3.0, Qi2 | - |
Battery Test Results
| Charging Time (0 To 50%) | 1hr 10 min (0 to 100%) | - |
|---|
Memory
🏆 Winner: Samsung Galaxy S25 Ultra
| Storage Size | 256 | 128 | ||
|---|---|---|---|---|
| Storage Type | UFS 4.0 | UFS 3.1 | ||
| RAM Size | 12 | 8 | ||
| RAM Type | LPDDR5X | LPDDR5 |
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, CDMA, EVDO, GSM, HSDPA, HSPA, LTE | ||
| 2G Bands | 1800, 1900, 850, 900 | 1800, 1900, 850, 900 | ||
| 3G Bands | 1, 2, 4, 5, 8 | HSDPA 850, 900, 1700(AWS), 1900, 2100, CDMA2000 1xEV-DO | ||
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 38, 39, 40, 41, 66 | LTE 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 | ||
| 5G Bands | 1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 66, 77, 78 | SA/NSA/Sub6 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 |
Connectivity
🏆 Winner: Samsung Galaxy S25 Ultra
| Wi-Fi Standards | Wi-Fi 7 802.11 a/b/g/n/ac/ax/be | Wi-Fi 6 802.11 a/b/g/n/ac/ax | ||
|---|---|---|---|---|
| Wi-Fi Features | Wi-Fi Direct | Hotspot, Wi-Fi Direct | ||
| Wi-Fi Version | WiFi 7 | WiFi 6 | ||
| Bluetooth Version | 5.4 | 5 | ||
| Bluetooth Codecs | A2DP, LE | A2DP, LE | ||
| GPS | Beidou, Galileo, Glonass, GPS, QZSS | BDS, GPS | ||
| NFC Support | Supported | Supported | ||
| Radio | - | FM Radio |
Features
| Fingerprint Scanner | Ultrasonic (under display) | Ultrasonic (under display) | ||
|---|---|---|---|---|
| Sensors on Board | Accelerometer, Ambient Light Sensor, Barometer, Compass, Geomagnetic Sensor, Gyroscope, Hall Sensor, Light Sensor, Proximity Sensor, Ultra Wideband (UWB) Support | Accelerometer, Barometer Sensor, Compass, Gyroscope, Proximity Sensor, Samsung DeX, Samsung Wireless DeX | ||
| Haptic Feedback | X-axis Linear Motor | Eccentric Rotating Mass | ||
| Stylus Support | Yes | - |
