Samsung Galaxy S25 Ultra vs Samsung Galaxy S21 Ultra
Compare Samsung Galaxy S25 Ultra and Samsung Galaxy S21 Ultra to understand which one suits your needs the best. The Samsung Galaxy S25 Ultra is priced from ₹95,999, 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 Ultra vs Samsung Galaxy S21 Ultra Comparison Overview
| Key Highlights | Samsung Galaxy S25 Ultra | Samsung Galaxy S21 Ultra |
|---|---|---|
| Price | ₹95,999 | ₹47,990 |
| Processor | Qualcomm Snapdragon 8 Elite for Galaxy | Samsung Exynos 2100 |
| Display | 6.9 inches, QHD+ AMOLED, 120Hz | 6.8 inches, FHD+ AMOLED, 120Hz |
| Rear Camera | 200MP (Wide-angle), 10MP (Telephoto), 50MP (Periscope), 50MP (Ultra-wideMP), 12MP (Front) | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wideMP), 40MP (Front) |
| Battery | 5000mAh, 45W | 5000mAh, 25W |
| RAM/Storage | 12GB (LPDDR5X), 256GB (UFS 4.0) | 12GB (LPDDR5), 256GB (UFS 3.1) |
Reasons To Consider
→ Samsung Galaxy S25 Ultra
Faster processor for smoother multitasking and demanding mobile gaming - (Snapdragon 8 Elite for Galaxy)Features a crispier and higher resolution display - (QHD+)Faster wired charging speeds for noticeably shorter charge times - (45W)Crisper and higher resolution video recording capability upto 8K@30fpsLarger image sensor capturing more ambient light - (1/1.3")Tougher protective glass engineered for improved drop and scratch resistance - (Gorilla Glass Armour 2.0)
Faster processor for smoother multitasking and demanding mobile gaming - (Snapdragon 8 Elite for Galaxy)Features a crispier and higher resolution display - (QHD+)Faster wired charging speeds for noticeably shorter charge times - (45W)Crisper and higher resolution video recording capability upto 8K@30fpsLarger image sensor capturing more ambient light - (1/1.3")Tougher protective glass engineered for improved drop and scratch resistance - (Gorilla Glass Armour 2.0) → Samsung Galaxy S21 UltraHigher optical zoom for clearer, detailed shots of distant subjects - (10X Zoom)Higher pixel density producing razor-sharp text without visible pixels - (515ppi)
Higher optical zoom for clearer, detailed shots of distant subjects - (10X Zoom)Higher pixel density producing razor-sharp text without visible pixels - (515ppi)GamingSee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S21 Ultra43
CameraSee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S21 Ultra71
DisplaySee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S21 Ultra86
BatterySee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S21 Ultra82
BodySee More Details
Samsung Galaxy S25 Ultra100
Samsung Galaxy S21 Ultra92
Key Specifications
| Processor | Qualcomm Snapdragon 8 Elite for Galaxy | Samsung Exynos 2100 | ||
|---|---|---|---|---|
| Display | 6.9 inches, QHD+ AMOLED, 120Hz | 6.8 inches, FHD+ AMOLED, 120Hz | ||
| Camera | 200MP (Wide-angle), 10MP (Telephoto), 50MP (Periscope), 50MP (Ultra-wideMP), 12MP (Front) | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wideMP), 40MP (Front) | ||
| Battery | 5000mAh, 45W | 5000mAh, 25W | ||
| RAM | 12GB (LPDDR5X) | 12GB (LPDDR5) | ||
| Storage | 256GB (UFS 4.0) | 256GB (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 | ₹1,05,999 |
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 | - | ||
| Anti Reflection Coating | Yes | - | ||
| Display Enhancements | Adaptive Colour Tone | - | ||
| Display Size | 6.9 inches | 6.8 inches | ||
| Area | 116.9 cm² | 112.1 cm² | ||
| Display Form Factor | Flat Display | Quad Curved Display | ||
| Screen to Body Ratio | 92.5% | 89.8% | ||
| Resolution Width | 1440pixels | 1440pixels | ||
| Resolution Height | 3120pixels | 3200pixels | ||
| Aspect Ratio | 19.5:9 | 20:9 | ||
| Pixel Density | 498ppi | 515ppi | ||
| Display Bit Rate | 8-bit | 8-bit | ||
| Color Gamut Range | 100% | 100% | ||
| Display Resolution | QHD+ | FHD+ | ||
| Peak Brightness | 2600nits | 1500nits | ||
| Eye Protection | Eye Comfort Shield | - | ||
| Contrast Ratio | 5,000,000:1 | - | ||
| Colour Gamut | DCI-P3 | - | ||
| Colour Depth | 16.7 Million Colours | 16.7 Million Colours | ||
| High Brightness | - | 1500nits |
Body
🏆 Winner: Samsung Galaxy S25 Ultra
| Height | 162.8 mm | 165.1 mm | ||
|---|---|---|---|---|
| Width | 77.6 mm | 75.6 mm | ||
| Thickness | 8.2 mm | 8.9 mm | ||
| Weight | 218 grams | 227 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 | Gorilla Glass Victus | ||
| 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 3.1 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 | - |
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 | 875803 | ||
|---|---|---|---|---|
| Geekbench 6 CPU Single-Core | 2974 | 1356 | ||
| Geekbench 6 CPU Multi-Core | 9558 | - |
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 | - | ||
| 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 |
Main Camera
🏆 Winner: Samsung Galaxy S25 Ultra
| Main Camera Megapixel | 200MP | 108MP | ||
|---|---|---|---|---|
| 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" | 1/1.33" | ||
| Main Camera Camera Features | Multi-directional PDAF, OIS | OIS, PDAF | ||
| Main Camera #2 Megapixel | 10MP | 10MP | ||
| Main Camera #2 Aperture | f/2.4 | f/4.9 | ||
| Main Camera #2 Field of View | 36° | - | ||
| Main Camera #2 Lens Type | Telephoto | Periscope | ||
| Main Camera #2 Camera Sensor | Sony IMX700 | - | ||
| Main Camera #2 Sensor Size | 1/3.52" | 1/3.24" | ||
| Main Camera #2 Camera Features | 3x Optical Zoom, OIS, PDAF | 10x Optical Zoom, Dual Pixel PDAF, OIS | ||
| Main Camera #3 Megapixel | 50MP | 10MP | ||
| Main Camera #3 Aperture | f/3.4 | f/2.4 | ||
| Main Camera #3 Field of View | 22° | - | ||
| Main Camera #3 Lens Type | Periscope | Telephoto | ||
| Main Camera #3 Camera Sensor | Sony IMX800 | - | ||
| Main Camera #3 Sensor Size | 1/2.52" | 1/3.24" | ||
| Main Camera #3 Camera Features | 5x Optical Zoom, OIS, PDAF | 3x Optical Zoom, Dual Pixel PDAF, OIS | ||
| Main Camera #4 Megapixel | 50MP | 12MP | ||
| Main Camera #4 Aperture | f/1.9 | f/2.2 | ||
| Main Camera #4 Field of View | 120° | - | ||
| Main Camera #4 Lens Type | Ultra-wide | Ultra-wide | ||
| Main Camera #4 Camera Sensor | Samsung ISOCELL JN | - | ||
| Main Camera #4 Sensor Size | 1/2.55" | 1/2.55" | ||
| Main Camera #4 Camera Features | Dual Pixel PDAF, Super Steady Video | Dual Pixel PDAF, Super Steady Video | ||
| Features | Adaptive VDIS, Continuous Shooting, Expert RAW, Filter, HDR, Laser Auto Focus, Night mode, OIS, panorama, PDAF, Portrait mode, Pro Mode (long exposure) | 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 | Multi-Directional PDAF | PDAF | ||
| Max Zoom Supported | 50-100X | - | ||
| Optical Zoom Support | 5X | 10X | ||
| 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@120fps, 1080p@240fps, 1080p@30fps, 1080p@60fps, 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 | 40MP | ||
|---|---|---|---|---|
| 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 | 0.7 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" | 1/2.8" | ||
| Front Camera #1 Camera Features | Auto Focus, Dual Pixel PDAF | Auto Focus, PDAF | ||
| Features | Auto Focus, Auto HDR, Digital Zoom, HDR10+, Laser Auto Focus, LED flash, panorama, Portrait Mode | Face unlock, HdR | ||
| Auto Focus Type | Laser Auto Focus | Contrast Detection Auto Focus | ||
| Video Features | 1080p@30fps, 4k@30fps, HDR10+ | 1080p@30fps, 4k@30/60fps | ||
| Video Recording | 1080@30fps, 4k@30fps, 4k@60fps | 4k@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 | 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 | 45W | 25W | ||
| Charging Speed Wireless | 15W | 15W | ||
| Charging Speed Reverse Wireless | 4.5W | 4.5W | ||
| Charging Standards Supported | PD3.0, Qi2 | PD3.0, Qi |
Battery Test Results
| Charging Time (0 To 50%) | 1hr 10 min (0 to 100%) | - |
|---|
Memory
🏆 Winner: Samsung Galaxy S25 Ultra
| Storage Size | 256 | 256 | ||
|---|---|---|---|---|
| Storage Type | UFS 4.0 | UFS 3.1 | ||
| RAM Size | 12 | 12 | ||
| 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, 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 Ultra
| 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 Features | Wi-Fi Direct | Hotspot, Wi-Fi Direct | ||
| 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 | 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, Ultra Wideband (UWB) Support | Accelerometer, Barometer Sensor, Geomagnetic Sensor, Gyroscope, Hall Sensor, Light Sensor, Proximity Sensor, Samsung DeX, Ultra Wideband (UWB) Support | ||
| Haptic Feedback | X-axis Linear Motor | - | ||
| Stylus Support | Yes | - |
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