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- 80 User Ratings
- Last Updated: 16th September 2025
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Display 6.20-inch (1080x2400)
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Processor Samsung Exynos 2100
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Front Camera 10MP
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Rear Camera 12MP + 12MP + 64MP
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RAM 8GB
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Storage 128GB, 256GB
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Battery Capacity 4000mAh
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OS Android 11
Samsung Galaxy S21 in Pictures
Samsung Galaxy S21 Review
- Design
- Display
- Software
- Performance
- Battery Life
- Camera
- Value for Money
- Good
- Compact
- Good performance
- Capable cameras
- Bad
- Polycarbonate back
- Average battery life
- No bundled charger
Earlier this year, Samsung launched three new smartphones comprising its 2021 flagship Galaxy S21 series. The Galaxy S21 Ultra is the top-of-the-line model and showcases some impressive camera hardware, which will appeal to those looking for the ultimate flexibility, no matter the cost. We've already tested the Galaxy S21 Ultra, and we were impressed with it, but it costs over Rs. 1,00,000.
Samsung Galaxy S21 Summary
The Galaxy S21 has a 6.2-inch full-HD+ display with a 120Hz refresh rate.. It has Corning Gorilla Glass Victus on the display and a metal frame but the back is made out of plastic. The smartphone packs in a 4000mAh battery and does not get a charger in the box.
The Galaxy S21 is powered by the Exynos 2100 5G SoC and gets 8GB of RAM. You can choose between 128GB and 256GB of storage but it isn’t expandable. You get Android 11 out of the box with Samsung's One UI 3.0 on top. The Galaxy S21 offers good performance but the smaller battery capacity doesn’t let it last as long as the Galaxy S21+.
There is a triple camera setup with a 12-megapixel ultra-wide angle camera, a 12-megapixel wide-angle camera, and a 64-megapixel telephoto camera. For selfies, it has a 10-megapixel front camera. Camera performance of the Galaxy S21 is impressive in different lighting conditions and will not disappoint you. The small battery and the polycarbonate back are the only major cons for this smartphone.
Samsung Galaxy S21 Price in India
Samsung Galaxy S21 price in India starts from ₹ 22,999. The lowest price of Samsung Galaxy S21 is ₹ 22,999 at Amazon on 16th September 2025.
Samsung Galaxy S21 Full Specifications
| Brand | Samsung |
| Model | Galaxy S21 |
| Price in India | ₹22,999 |
| Release date | 14th January 2021 |
| Form factor | Touchscreen |
| Dimensions (mm) | 151.70 x 71.20 x 7.90 |
| Weight (g) | 171.00 |
| IP rating | IP68 |
| Battery capacity (mAh) | 4000 |
| Fast charging | Proprietary |
| Wireless charging | Yes |
| Colours | Phantom Violet |
| Screen size (inches) | 6.20 |
| Touchscreen | Yes |
| Resolution | 1080x2400 pixels |
| Protection type | Gorilla Glass |
| Aspect ratio | 20:9 |
| Pixels per inch (PPI) | 421 |
| Processor | 2.2GHz octa-core (3x2.8GHz + 4x2.2GHz + 1x2.9GHz) |
| Processor make | Samsung Exynos 2100 |
| RAM | 8GB |
| Internal storage | 128GB, 256GB |
| Rear camera | 12-megapixel (f/1.8, 1.8-micron) + 12-megapixel (f/2.2, 1.4-micron) + 64-megapixel (f/2.0, 0.8-micron) |
| No. of Rear Cameras | 3 |
| Rear autofocus | Yes |
| Rear flash | Yes |
| Front camera | 10-megapixel (f/2.2, 1.22-micron) |
| No. of Front Cameras | 1 |
| Operating system | Android 11 |
| Skin | One UI 3.1 |
| Wi-Fi | Yes |
| Wi-Fi standards supported | 802.11 a/b/g/n/ac/ax |
| GPS | Yes |
| Bluetooth | Yes, v 5.00 |
| NFC | Yes |
| USB Type-C | Yes |
| Number of SIMs | 2 |
| SIM 1 | |
| SIM Type | Nano-SIM |
| GSM/CDMA | GSM |
| 3G | Yes |
| 4G/ LTE | Yes |
| 5G | Yes |
| Supports 4G in India (Band 40) | Yes |
| SIM 2 | |
| SIM Type | Nano-SIM |
| GSM/CDMA | GSM |
| 3G | Yes |
| 4G/ LTE | Yes |
| 5G | Yes |
| Supports 4G in India (Band 40) | Yes |
| Face unlock | Yes |
| In-Display Fingerprint Sensor | Yes |
| Compass/ Magnetometer | Yes |
| Proximity sensor | Yes |
| Accelerometer | Yes |
| Ambient light sensor | Yes |
| Gyroscope | Yes |
| Barometer | Yes |
Samsung Galaxy S21 Comparisons
Samsung Galaxy S21 Competitors
Samsung Galaxy S21 User Review and Ratings
78 reviews
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smallest OvenShitiz Khurana (Apr 7, 2021) on Gadgets 360phone which fits perfect in hand with one of the best display, however everything becomes useless when you can't even hold the phone. While Gaming Video calling charging and sometimes randomly, the phone heats to much that you can barely hold it in your hand. you feel the unnecessary burning sensation in your denim pocket. This is such a shame that a phone with the highest specs becomes an oven within half an hour of video calling. Shame on Samsung. Exynos should not even exist.Is this review helpful?
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If you are switching from iPhone, buy this phone.Prashit (Jun 3, 2021) on AmazonIt's been more then 3 months, I waited 3 months so that I challenge this phone in every possible way. It's a perfect buy.The only issue I faced, there are less options of backcover for S21 on Amazon ( not a product issue )Is this review helpful?
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Awesome Speakers, Flawless Screen and Excellent CameraKhushvinder Bindra (Jun 2, 2021) on AmazonI had heard about flawless 120 Hz Refresh Rate of the screen and it's beautiful camera before buying... but the thing that took me buy surprise when I received the phone were it's super awesome Speakers.. the audio level is so good and the sound is so crystal clear, it just made every penny worth.Is this review helpful?
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Buy it!Syed Avaze (May 9, 2021) on AmazonSuper awesome phone! To top it all you get a galaxy active 2! In simple words compact beast in ✋Is this review helpful?
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Compact yet Powerful 😍🤩Rajat (Feb 3, 2021) on AmazonThe Samsung Galaxy S21 checks all the boxes, and is amazing. It comes with a great camera, great displays with 120hz support, waterproof, powerful processor, SPay, and what not, and all those in this compact form factor.Loved the Dual Tone finish on Galaxy S21.Light in weight but powerful in performance.Feels a lot premium and Amazing in Hand.Camera quality is superb, gives amazing results, colors, quality is just great. Loved the results those sensors produced on Galaxy S21.A Good Buy if you're looking for a Compact yet a powerful device. Loved itIs this review helpful?
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