Samsung Galaxy S21 Ultra vs Google Pixel 9a
Compare Samsung Galaxy S21 Ultra and Google Pixel 9a to understand which one suits your needs the best. The Samsung Galaxy S21 Ultra is priced from ₹47,990, while Google Pixel 9a is available at ₹39,999 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 Google Pixel 9a Comparison Overview
| Key Highlights | Samsung Galaxy S21 Ultra | Google Pixel 9a |
|---|---|---|
| Price | ₹47,990 | ₹39,999 |
| Processor | Samsung Exynos 2100 | Google Tensor G4 |
| Display | 6.8", FHD+ AMOLED, 120Hz | 6.3", FHD+ p-OLED, 120Hz |
| Rear Camera | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) | 48MP (Wide-angle), 13MP (Ultra-wide), 13MP (Front) |
| Battery | 5000mAh, 25Watt | 5100mAh, 23Watt |
| RAM/Storage | 12GB (LPDDR5), 256GB (UFS 3.1) | 8GB (LPDDR5X), 256GB (UFS 3.1) |
Performance Scorecard
Key Specifications
| Processor | Samsung Exynos 2100 | Google Tensor G4 | ||
|---|---|---|---|---|
| Display | 6.8", FHD+ AMOLED, 120Hz | 6.3", FHD+ p-OLED, 120Hz | ||
| Camera | 108MP (Wide-angle), 10MP (Periscope), 10MP (Telephoto), 12MP (Ultra-wide), 40MP (Front) | 48MP (Wide-angle), 13MP (Ultra-wide), 13MP (Front) | ||
| Battery | 5000mAh, 25Watt | 5100mAh, 23Watt | ||
| RAM | 12GB (LPDDR5) | 8GB (LPDDR5X) | ||
| Storage | 256GB (UFS 3.1) | 256GB (UFS 3.1) |
General
| Box Contents | Phone, Type-C cable, SIM Ejector Tool | Phone, Type-C Cable, SIM Ejector Tool | ||
|---|---|---|---|---|
| Colors | Phantom Black, Phantom Silver, Phantom Titanium, Phantom Navy, Phantom Brown, Navy | Iris, Porcelain, Obsidian | ||
| Launch | January 14, 2021 | March 19, 2025 | ||
| Stores | Flipkart, Amazon | Flipkart, Google, Amazon, Vijay Sales, Croma, Reliance Digital | ||
| Launch Country | India | India | ||
| Launch Price | ₹1,05,999 | ₹49,999 |
Display
🏆 Winner: Google Pixel 9a
| Display Type | AMOLED | p-OLED | ||
|---|---|---|---|---|
| Refresh Rate | 120Hz | 120Hz | ||
| Playback Quality | HDR10+ | HDR | ||
| Display Engine | Dynamic 2X | Actua | ||
| Display Size | 6.8 inches | 6.3 inches | ||
| Area | 112.1cm² | 94.7cm² | ||
| Display Form Factor | Quad Curved Display | Flat Display | ||
| Screen to Body Ratio | 89.8 | 83.5 | ||
| Resolution Width | 1440 pixels | 1080 pixels | ||
| Resolution Height | 3200 pixels | 2424 pixels | ||
| Aspect Ratio | 20:9 | 20:9 | ||
| Pixel Density | 515ppi | 422.2ppi | ||
| Display Bit Rate | 8-bit | 8-bit | ||
| Color Gamut Range | 100% | 100% | ||
| Display Resolution | FHD+ | FHD+ | ||
| High Brightness | 1500 nits | 1800 nits | ||
| Peak Brightness | 1500 nits | 2700 nits | ||
| Colour Depth | 16.7 Million Colours | 16.7 Million Colours | ||
| LTPS Support | - | Yes | ||
| Eye Protection | - | PWM Dimming | ||
| Contrast Ratio | - | 1,000,000:1 | ||
| Colour Gamut | - | DCI-P3 |
Body
🏆 Winner: Samsung Galaxy S21 Ultra
| Height | 165.1mm | 154.7mm | ||
|---|---|---|---|---|
| Width | 75.6mm | 73.3mm | ||
| Thickness | 8.9mm | 8.9mm | ||
| Weight | 227 grams | 186 grams | ||
| Screen Material | Gorilla Glass Victus | Gorilla Glass 3 | ||
| Display Protection | Gorilla Glass Victus | Gorilla Glass 3 | ||
| Back Material | Gorilla Glass Victus | Plastic | ||
| Side Material | Aluminium Frame | Aluminium Frame | ||
| Build Quality | Corning Gorilla Glass Victus | Corning Gorilla Glass 3 | ||
| Ports | USB Type-C 3.1 Gen 1 | USB Type-C 3.2 | ||
| Additional Features | OTG | USB Type-C (bottom) | ||
| IP Rating | IP68 (Dust and Water Resistant) | IP68 (Dust and Water Resistant) | ||
| Speaker | Stereo Speakers | Stereo Speakers |
Processor
🏆 Winner: Google Pixel 9a
| Chipset Manufacturer | Samsung | |||
|---|---|---|---|---|
| Chipset | Exynos 2100 | Tensor G4 | ||
| 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 | 1x3.1 GHz Cortex-X4 & 3x2.6 GHz Cortex-A720 & 4x1.9 GHz Cortex-A520 | ||
| GPU | Mali-G78 MP14 | Mali-G715 MP7 | ||
| Co-Processor | - | Titan Security Chip |
Performance Benchmarks
| AnTuTu | 875803 | 1114515 | ||
|---|---|---|---|---|
| Geekbench 6 CPU Single-Core | 1356 | 2005 |
Main Camera
🏆 Winner: Samsung Galaxy S21 Ultra
| Main Camera #1 Megapixel | 108MP | 48MP | ||
|---|---|---|---|---|
| Main Camera #1 Aperture | f/1.8 | f/1.7 | ||
| Main Camera #1 Lens Type | Wide-angle | Wide-angle | ||
| Main Camera #1 Sensor Size | 1/1.33" | 1/2.0" | ||
| Main Camera #1 Camera Features | OIS, PDAF | Dual Pixel PDAF, OIS | ||
| Main Camera #2 Megapixel | 10MP | 13MP | ||
| Main Camera #2 Aperture | f/4.9 | f/2.2 | ||
| Main Camera #2 Lens Type | Periscope | Ultra-wide | ||
| Main Camera #2 Sensor Size | 1/3.24" | 1/3.1" | ||
| Main Camera #2 Camera Features | 10x Optical Zoom, Dual Pixel PDAF, OIS | - | ||
| Main Camera #3 Megapixel | 10MP | - | ||
| Main Camera #3 Aperture | f/2.4 | - | ||
| Main Camera #3 Lens Type | Telephoto | - | ||
| 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 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 | Best Take, Digital zoom, Dual LED Flash, Long Exposure, Macro Mode, Night mode, panorama, Pixel Shift Auto Focus, Portrait mode, Slow-Mo, Ultra HDR | ||
| Camera Stabilization | OIS | OIS | ||
| Dynamic Video Recording Support | HDR 10+ recording | HDR10 recording | ||
| Stereo Sound Recording Support | Yes | Yes | ||
| Slow Motion Recording | 960 fps slomo | 240 fps slomo | ||
| Auto Focus Type | PDAF | PDAF | ||
| Optical Zoom Support | 10X | - | ||
| Video Features | gyro-EIS, HDR10+, Stereo Sound Recording | Cinematic mode, gyro-EIS, OIS, Slow Motion, Stereo Sound Recording, Time-lapse Video | ||
| Video Recording | 1080p@120fps, 1080p@240fps, 1080p@30fps, 1080p@60fps, 4K@30fps, 4K@60fps, 720p@960fps, 8K@24fps | 1080p@120fps, 1080p@240fps, 1080p@30fps, 1080p@60fps, 4K@30fps, 4K@60fps | ||
| Main Camera #2 Field of View | - | 120 | ||
| Raw Photo Support | - | Yes | ||
| Max Zoom Supported | - | 2-10X |
Operating System
| OS Name | Android | Android | ||
|---|---|---|---|---|
| OS Version | 11 | 15 | ||
| OS Skin | One UI | Google Android | ||
| OS Updates | 4 year(s) | 7 year(s) | ||
| Security Updates | 5 year(s) | 7 year(s) | ||
| AI Features | Circle to Search | AI Assistant, Best Take, Call assist, Circle to Search, Gemini Live, Live Translate, Magic Editor, Magic Eraser, Photo Unblur, Portrait Blur/Unblur, Portrait Light | ||
| Inbuilt AI | - | Google Tensor Processing Unit | ||
| Gaming Mode | - | Yes | ||
| Desktop Mode | - | Yes | ||
| AI Frame Interpolation | - | Yes | ||
| Bloatware Free OS | - | Yes |
Selfie Camera
🏆 Winner: Samsung Galaxy S21 Ultra
| Front Camera #1 Megapixel | 40MP | 13MP | ||
|---|---|---|---|---|
| Front Camera #1 Aperture | f/2.2 | f/2.2 | ||
| Front Camera #1 Focal Length | 26mm | 20mm | ||
| Front Camera #1 Pixel Size | 0.7µm | 1.12µm | ||
| Front Camera #1 Lens Type | Wide | Ultrawide | ||
| Front Camera #1 Sensor Size | 1/2.8" | 1/3.1" | ||
| Front Camera #1 Camera Features | Auto Focus, PDAF | - | ||
| Features | Face unlock, HdR | HdR, Night mode, panorama, Portrait Mode, Pro Mode (long exposure) | ||
| Auto Focus Type | Contrast Detection Auto Focus | Fixed Focus | ||
| Video Features | 1080p@30fps, 4k@30/60fps | 1080@30fps, 4k@30fps | ||
| Video Recording | 4k@30fps, 4k@60fps | 4k@30fps | ||
| HDR Recording Support | SDR recording | SDR recording | ||
| Front Camera #1 Field of View | - | 96.1 |
Battery
🏆 Winner: Google Pixel 9a
| Battery Capacity | 5000mAh | 5100mAh | ||
|---|---|---|---|---|
| Battery Type | Lithium Ion | Lithium Polymer | ||
| Wireless Charging Support | Yes | Yes | ||
| Reverse Wireless Charging Support | Yes | - | ||
| Charging Speed Wired | 25W | 23W | ||
| Charging Speed Wireless | 15W | 7.5W | ||
| Charging Speed Reverse Wireless | 4.5W | - | ||
| Charging Standards Supported | PD3.0, Qi | PD3.0 | ||
| Bypass Charging Support | - | Yes |
Network
| Sim Type | nano-SIM and eSIM or Dual SIM (2 nano-SIM and eSIM, dual stand-by) | Dual SIM (nano-SIM & eSIM) | ||
|---|---|---|---|---|
| Network Support | 5G | 5G | ||
| Band Types | 5G, GSM, LTE FDD, LTE TD, UMTS, WCDMA | 5G, EDGE, GSM, HSDPA, HSPA+, LTE, UMTS | ||
| 2G Bands | 1800, 1900, 850, 900 | 1800, 1900, 850, 900 | ||
| 3G Bands | 1, 2, 4, 5, 8 | UMTS/HSPA+/HSDPA 1, 2, 4, 5, 6, 8, 19 | ||
| 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, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 21, 26, 28, 32, 38, 39, 40, 41, 42, 66, 75 | ||
| 5G Bands | 1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 | SA/NSA/Sub6 1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 66, 75, 77, 78, 79 |
Connectivity
🏆 Winner: Google Pixel 9a
| Wi-Fi Standards | Wi-Fi 6E 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 6e | ||
| Bluetooth Version | 5.2 | 5.3 | ||
| Bluetooth Codecs | A2DP, AAC, LE | A2DP, LE | ||
| GPS | GPS | Beidou, Galileo, Glonass, GNSS, GPS, Navic, 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, Barometer, Gyroscope, Magnetometer Sensor, Proximity Sensor | ||
| Haptic Feedback | - | X-axis Linear Motor |









