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Samsung Galaxy S21 series specs: What’s new compared to last year?

The S21 lineup is cheaper than the S20, but also come with some downgrades

At Samsung’s Unpacked event on January 14th, the South Korean phone-maker unveiled its three newest flagships, the Galaxy S21, Galaxy S21+ and Galaxy S21 Ultra. While there’s a lot to be excited about these new devices, it’s also worth taking a moment to compare them to their predecessors, the Galaxy S20, S20+ and S20 Ultra.

There are a lot of things different this time around, and the most important is the price. The base Galaxy S21 is $120 cheaper than last year’s S20, the S21+ $179 cheaper than the S20+ and the S21 Ultra is $200 cheaper than the S20 Ultra. Considering many felt the S20 line was too expensive, a drop in price is welcome. However, some might feel the corresponding tradeoffs aren’t worth it.

Samsung Galaxy S20

Samsung Galaxy S21

Display

6.2-inch Curved Dynamic AMOLED, 3,200 x 1,440 pixels, 20:9 aspect ratio, 120Hz display

6.2-inch Flat Dynamic AMOLED, 1,080 x 2,400 pixels, 20:9 aspect ratio, 120Hz display, HDR10+

Processor

Snapdragon 865

Snapdragon 888

RAM

12GB of RAM

8GB of RAM

Storage

128GB

128GB, 256GB

Dimensions (in.)

152 x 68 x 7.9mm

151.7 x 71.2 x 7.9mm

Weight

164g

172g

Rear Facing Camera

12.2-megapixel (wide) + 64-megapixel (telephoto) + 12-megapixel (ultra-wide angle)

12-megapixel (f/1.8, wide) + 64-megapixel (f/2.0, 3x zoom) + 12-megapixel (f/2.2, 120-degree FOV, ultrawide)

Front Facing Camera

10-megapixel

10-megapixel (f/2.2)

OS

Android 10

Android 11, One UI 3.1

Battery

4,000mAh

4,000mAh

Network Connectivity

GSM/HSPA/LTE/5G

GSM/HSPA/LTE/5G

Sensors

Fingerprint (in-display), accelerometor, gyro, proximity, compass

Fingerprint (in-display), accelerometor, gyro, proximity, compass

SIM Type

Nano SIM

Nano SIM

Launch Date

March 6, 2020

January 14, 2021

Misc

Colours: Cosmic Black, Cosmic Grey, Cloud Blue | 120Hz display, 240Hz touch sample rate

Colours: Phantom Gray, Phantom White, Phantom Pink, Phantom Violet

Display

Samsung Galaxy S20

6.2-inch Curved Dynamic AMOLED, 3,200 x 1,440 pixels, 20:9 aspect ratio, 120Hz display

Samsung Galaxy S21

6.2-inch Flat Dynamic AMOLED, 1,080 x 2,400 pixels, 20:9 aspect ratio, 120Hz display, HDR10+

Processor

Samsung Galaxy S20

Snapdragon 865

Samsung Galaxy S21

Snapdragon 888

RAM

Samsung Galaxy S20

12GB of RAM

Samsung Galaxy S21

8GB of RAM

Storage

Samsung Galaxy S20

128GB

Samsung Galaxy S21

128GB, 256GB

Dimensions (in.)

Samsung Galaxy S20

152 x 68 x 7.9mm

Samsung Galaxy S21

151.7 x 71.2 x 7.9mm

Weight

Samsung Galaxy S20

164g

Samsung Galaxy S21

172g

Rear Facing Camera

Samsung Galaxy S20

12.2-megapixel (wide) + 64-megapixel (telephoto) + 12-megapixel (ultra-wide angle)

Samsung Galaxy S21

12-megapixel (f/1.8, wide) + 64-megapixel (f/2.0, 3x zoom) + 12-megapixel (f/2.2, 120-degree FOV, ultrawide)

Front Facing Camera

Samsung Galaxy S20

10-megapixel

Samsung Galaxy S21

10-megapixel (f/2.2)

OS

Samsung Galaxy S20

Android 10

Samsung Galaxy S21

Android 11, One UI 3.1

Battery

Samsung Galaxy S20

4,000mAh

Samsung Galaxy S21

4,000mAh

Network Connectivity

Samsung Galaxy S20

GSM/HSPA/LTE/5G

Samsung Galaxy S21

GSM/HSPA/LTE/5G

Sensors

Samsung Galaxy S20

Fingerprint (in-display), accelerometor, gyro, proximity, compass

Samsung Galaxy S21

Fingerprint (in-display), accelerometor, gyro, proximity, compass

SIM Type

Samsung Galaxy S20

Nano SIM

Samsung Galaxy S21

Nano SIM

Launch Date

Samsung Galaxy S20

March 6, 2020

Samsung Galaxy S21

January 14, 2021

Misc

Samsung Galaxy S20

Colours: Cosmic Black, Cosmic Grey, Cloud Blue | 120Hz display, 240Hz touch sample rate

Samsung Galaxy S21

Colours: Phantom Gray, Phantom White, Phantom Pink, Phantom Violet

Starting with the S21 and S21+, both devices sport displays with lower 1080 x 2400 pixel resolutions compared to the 3200 x 1440 pixel resolutions on the S20 and S20+. While the resolution downgrade is certainly upsetting, in the long run, I don’t think it’ll be that bad. Last year’s Galaxy phones couldn’t run their higher 120Hz refresh rate at the native resolution, so users had to pick between using a lower res and higher refresh rate.

In MobileSyrup’s testing, we all found the 120Hz refresh more noticeable than the resolution, and for the most part, we all preferred using the phone that way. With that in mind, the lower-res display here likely won’t be an issue for many people.

However, these devices have a few other ‘downgrades,’ such as 8GB of RAM instead of 12GB, and the S21 has a polycarbonate (plastic) rear panel instead of glass.

Samsung Galaxy S20+

Samsung Galaxy S21+

Display

6.7-inch Curved Dynamic AMOLED, 3,200 x 1,440 pixels, 20:9 aspect ratio, 120Hz display

6.7-inch Flat Dynamic AMOLED, 1,080 x 2,400 pixels, 20:9 aspect ratio, 120Hz display, HDR10+

Processor

Snapdragon 865

Snapdragon 888

RAM

12GB of RAM

8GB of RAM

Storage

128GB, 512GB

128GB, 256GB

Dimensions (in.)

162 x 74 x 7.8mm

161.5 x 75.6 x 7.8mm

Weight

188g

202g

Rear Facing Camera

12.2-megapixel (wide) + 64-megapixel (telephoto) + 12-megapixel (ultra-wide angle)+ TOF depth sensor

12-megapixel (f/1.8, wide) + 64-megapixel (f/2.0, 3x zoom) + 12-megapixel (f/2.2, 120-degree FOV, ultrawide)

Front Facing Camera

10-megapixel

10-megapixel (f/2.2)

OS

Android 10

Android 11, One UI 3.1

Battery

4,500mAh

4,800mAh

Network Connectivity

GSM/HSPA/LTE/5G

GSM/HSPA/LTE/5G

Sensors

Fingerprint (in-display), accelerometor, gyro, proximity, compass

Fingerprint (in-display), accelerometor, gyro, proximity, compass

SIM Type

Nano SIM

Nano SIM

Launch Date

March 6, 2020

January 14, 2021

Misc

Colours: Cosmic Grey, Cosmic Black, Cloud Blue | 120Hz display, 240Hz touch sample rate

Colours: Phantom Silver, Phantom Black, Phantom Violet, ultra wideband

Display

Samsung Galaxy S20+

6.7-inch Curved Dynamic AMOLED, 3,200 x 1,440 pixels, 20:9 aspect ratio, 120Hz display

Samsung Galaxy S21+

6.7-inch Flat Dynamic AMOLED, 1,080 x 2,400 pixels, 20:9 aspect ratio, 120Hz display, HDR10+

Processor

Samsung Galaxy S20+

Snapdragon 865

Samsung Galaxy S21+

Snapdragon 888

RAM

Samsung Galaxy S20+

12GB of RAM

Samsung Galaxy S21+

8GB of RAM

Storage

Samsung Galaxy S20+

128GB, 512GB

Samsung Galaxy S21+

128GB, 256GB

Dimensions (in.)

Samsung Galaxy S20+

162 x 74 x 7.8mm

Samsung Galaxy S21+

161.5 x 75.6 x 7.8mm

Weight

Samsung Galaxy S20+

188g

Samsung Galaxy S21+

202g

Rear Facing Camera

Samsung Galaxy S20+

12.2-megapixel (wide) + 64-megapixel (telephoto) + 12-megapixel (ultra-wide angle)+ TOF depth sensor

Samsung Galaxy S21+

12-megapixel (f/1.8, wide) + 64-megapixel (f/2.0, 3x zoom) + 12-megapixel (f/2.2, 120-degree FOV, ultrawide)

Front Facing Camera

Samsung Galaxy S20+

10-megapixel

Samsung Galaxy S21+

10-megapixel (f/2.2)

OS

Samsung Galaxy S20+

Android 10

Samsung Galaxy S21+

Android 11, One UI 3.1

Battery

Samsung Galaxy S20+

4,500mAh

Samsung Galaxy S21+

4,800mAh

Network Connectivity

Samsung Galaxy S20+

GSM/HSPA/LTE/5G

Samsung Galaxy S21+

GSM/HSPA/LTE/5G

Sensors

Samsung Galaxy S20+

Fingerprint (in-display), accelerometor, gyro, proximity, compass

Samsung Galaxy S21+

Fingerprint (in-display), accelerometor, gyro, proximity, compass

SIM Type

Samsung Galaxy S20+

Nano SIM

Samsung Galaxy S21+

Nano SIM

Launch Date

Samsung Galaxy S20+

March 6, 2020

Samsung Galaxy S21+

January 14, 2021

Misc

Samsung Galaxy S20+

Colours: Cosmic Grey, Cosmic Black, Cloud Blue | 120Hz display, 240Hz touch sample rate

Samsung Galaxy S21+

Colours: Phantom Silver, Phantom Black, Phantom Violet, ultra wideband

Not every difference between the 2021 and 2020 Galaxy phones is bad, however. Those who want more storage on the S21 can opt for the 256GB version instead of the 128GB. Unfortunately, the S21+ only offers 128GB or 256GB options, and not 512GB like the S20+.

The S21 and S21+ should also perform better when it comes to battery life, in part thanks to the lower-res screen and in part thanks to the S21+ having a larger 4,800mAh cell (the S20+ had 4,500mAh while the S21 and S20 both have 4,000mAh).

And of course, all three S21 devices sport the new Snapdragon 888 processor, which should bring some significant performance uplift over last year’s devices.

Samsung Galaxy S20 Ultra

Samsung Galaxy S21 Ultra

Display

6.9-inch Curved Dynamic AMOLED, 3,200 x 1,440 pixels, 20:9 aspect ratio, 120Hz display

6.8-inch Curved Dynamic AMOLED, 1,440 x 3,200 pixels, 20:9 aspect ratio, 120Hz display, HDR10+

Processor

Snapdragon 865

Snapdragon 888

RAM

12GB of RAM, 16GB of RAM

12GB of RAM, 16GB of RAM

Storage

128GB, 512GB

128GB, 256GB, 512GB

Dimensions (in.)

167 x 76 x 8.8mm

165.1 x 75.6 x 8.9mm

Weight

221g

228g

Rear Facing Camera

108-megapixel (wide) + 48-megapixel (telephoto) + 12-megapixel (ultra-wide angle) + TOF depth sensor

108-megapixel (f/1.8, OIS wide) + 10-megapixel (f/4.9, 10x zoom, OIS), 10-megapixel (f/2.4, 3x zoom, OIS)+ 12-megapixel (f/2.2, 120-degree FOV, ultrawide)

Front Facing Camera

40-megapixel

40-megapixel (f/2.2)

OS

Android 10

Android 11, One UI 3.1

Battery

5,000mAh

5,000mAh

Network Connectivity

GSM/HSPA/LTE/5G

GSM/HSPA/LTE/5G

Sensors

Fingerprint (in-display), accelerometor, gyro, proximity, compass

Fingerprint (in-display), accelerometor, gyro, proximity, compass

SIM Type

Nano SIM

Nano SIM

Launch Date

March 6, 2020

January 14, 2021

Misc

Colours: Cosmic Grey, Cosmic Black | 120Hz display, 240Hz touch sample rate

Colours: Phantom Silver, Phantom Black, 120Hz @ WQHD+, S Pen compatibility, ultra wideband

Display

Samsung Galaxy S20 Ultra

6.9-inch Curved Dynamic AMOLED, 3,200 x 1,440 pixels, 20:9 aspect ratio, 120Hz display

Samsung Galaxy S21 Ultra

6.8-inch Curved Dynamic AMOLED, 1,440 x 3,200 pixels, 20:9 aspect ratio, 120Hz display, HDR10+

Processor

Samsung Galaxy S20 Ultra

Snapdragon 865

Samsung Galaxy S21 Ultra

Snapdragon 888

RAM

Samsung Galaxy S20 Ultra

12GB of RAM, 16GB of RAM

Samsung Galaxy S21 Ultra

12GB of RAM, 16GB of RAM

Storage

Samsung Galaxy S20 Ultra

128GB, 512GB

Samsung Galaxy S21 Ultra

128GB, 256GB, 512GB

Dimensions (in.)

Samsung Galaxy S20 Ultra

167 x 76 x 8.8mm

Samsung Galaxy S21 Ultra

165.1 x 75.6 x 8.9mm

Weight

Samsung Galaxy S20 Ultra

221g

Samsung Galaxy S21 Ultra

228g

Rear Facing Camera

Samsung Galaxy S20 Ultra

108-megapixel (wide) + 48-megapixel (telephoto) + 12-megapixel (ultra-wide angle) + TOF depth sensor

Samsung Galaxy S21 Ultra

108-megapixel (f/1.8, OIS wide) + 10-megapixel (f/4.9, 10x zoom, OIS), 10-megapixel (f/2.4, 3x zoom, OIS)+ 12-megapixel (f/2.2, 120-degree FOV, ultrawide)

Front Facing Camera

Samsung Galaxy S20 Ultra

40-megapixel

Samsung Galaxy S21 Ultra

40-megapixel (f/2.2)

OS

Samsung Galaxy S20 Ultra

Android 10

Samsung Galaxy S21 Ultra

Android 11, One UI 3.1

Battery

Samsung Galaxy S20 Ultra

5,000mAh

Samsung Galaxy S21 Ultra

5,000mAh

Network Connectivity

Samsung Galaxy S20 Ultra

GSM/HSPA/LTE/5G

Samsung Galaxy S21 Ultra

GSM/HSPA/LTE/5G

Sensors

Samsung Galaxy S20 Ultra

Fingerprint (in-display), accelerometor, gyro, proximity, compass

Samsung Galaxy S21 Ultra

Fingerprint (in-display), accelerometor, gyro, proximity, compass

SIM Type

Samsung Galaxy S20 Ultra

Nano SIM

Samsung Galaxy S21 Ultra

Nano SIM

Launch Date

Samsung Galaxy S20 Ultra

March 6, 2020

Samsung Galaxy S21 Ultra

January 14, 2021

Misc

Samsung Galaxy S20 Ultra

Colours: Cosmic Grey, Cosmic Black | 120Hz display, 240Hz touch sample rate

Samsung Galaxy S21 Ultra

Colours: Phantom Silver, Phantom Black, 120Hz @ WQHD+, S Pen compatibility, ultra wideband

Aside from the Snapdragon 888 processor, the S21 Ultra doesn’t differ much from the S20 Ultra. Perhaps the most significant change is the slightly smaller screen (6.8- versus 6.9-inch on the S20 Ultra), a new 256GB storage option between the 128GB and 512GB options. The S21 Ultra also drops the 48-megapixel telephoto camera in favour of two 10-megapixel ones. And the S21 Ultra offers the ability to run the 120Hz refresh at the higher WQHD+ resolution.

One other interesting note is that all three S21 devices are slightly heavier than their S20 counterparts.

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