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Samsung Galaxy S21 5G

Samsung Galaxy S21 5G
MORE PICTURES
  • Released 2021, January 29
    169g (Sub6), 171g (mmWave), 7.9mm thickness
    Android 11, up to 4 major upgrades
    128GB/256GB storage, no card slot
  • 10% 14,718,464 hits
  • 744 Become a fan
  • 6.2"
    1080x2400 pixels
  • 64MP
    4320p
  • 6/8GB RAM
    Exynos 2100
  • 4000mAh
    25W15W
  • Review
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Versions: SM-G991B, SM-G991B/DS (International); SM-G991U (USA); SM-G991U1 (USA unlocked); SM-G991W (Canada); SM-G991N (Korea); SM-G9910 (China)

Network Technology GSM / CDMA / HSPA / EVDO / LTE / 5G
2G bands GSM 850 / 900 / 1800 / 1900
  CDMA 800 / 1900 & TD-SCDMA
3G bands HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100
  CDMA2000 1xEV-DO
4G bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 38, 39, 40, 41, 46, 48, 66, 71 - SM-G991U1
  1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 - SM-G991B
5G bands 2, 5, 25, 41, 66, 71, 260, 261 SA/NSA/Sub6/mmWave - SM-G991U1
  1, 3, 5, 7, 8, 20, 28, 38, 40, 41, 66, 77, 78 SA/NSA/Sub6 - SM-G991B
Speed HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 2000/200 Mbps, 5G (5+ Gbps DL)
Launch Announced 2021, January 14
Status Available. Released 2021, January 29
Body Dimensions 151.7 x 71.2 x 7.9 mm (5.97 x 2.80 x 0.31 in)
Weight 169 g (Sub6), 171 g (mmWave) (5.96 oz)
Build Glass front (Gorilla Glass Victus), plastic back, aluminum frame
SIM Nano-SIM + eSIM
Nano-SIM + Nano-SIM + eSIM (max 2 at a time)
 IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Display Type Dynamic AMOLED 2X, 120Hz, HDR10+, 1300 nits (peak)
Size 6.2 inches, 94.1 cm2 (~87.2% screen-to-body ratio)
Resolution 1080 x 2400 pixels, 20:9 ratio (~421 ppi density)
Protection Corning Gorilla Glass Victus
 Always-on display
Platform OS Android 11, up to 4 major Android upgrades, One UI 6.1
Chipset Exynos 2100 (5 nm) - International
Qualcomm SM8350 Snapdragon 888 5G (5 nm) - USA/China
CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) - International
Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) - USA/China
GPU Mali-G78 MP14 - International
Adreno 660 - USA/China
Memory Card slot No
Internal 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM
 UFS 3.1
Main Camera Triple 12 MP, f/1.8, 26mm (wide), 1/1.76", 1.8µm, dual pixel PDAF, OIS
64 MP, f/2.0, 29mm (telephoto), 1/1.72", 0.8µm, PDAF, OIS, 1.1x optical zoom, 3x hybrid zoom
12 MP, f/2.2, 13mm, 120˚ (ultrawide), 1/2.55" 1.4µm, Super Steady video
Features LED flash, auto-HDR, panorama
Video 8K@24fps, 4K@30/60fps, 1080p@30/60/120/240fps, HDR10+, stereo sound rec., gyro-EIS
Selfie camera Single 10 MP, f/2.2, 26mm (wide), 1/3.24", 1.22µm, dual pixel PDAF
Features HDR
Video 4K@30/60fps, 1080p@30fps
Sound Loudspeaker Yes, with stereo speakers
3.5mm jack No
 32-bit/384kHz audio
Tuned by AKG
Comms WLAN Wi-Fi 802.11 a/b/g/n/ac/6, dual-band, Wi-Fi Direct
Bluetooth 5.0, A2DP, LE
Positioning GPS, GLONASS, BDS, GALILEO
NFC Yes
Radio FM radio (Snapdragon model only; market/operator dependent)
USB USB Type-C 3.2, OTG
Features Sensors Fingerprint (under display, ultrasonic), accelerometer, gyro, proximity, compass, barometer
 Samsung DeX, Samsung Wireless DeX (desktop experience support)
Circle to Search
Battery Type Li-Ion 4000 mAh
Charging 25W wired, PD3.0
15W wireless (Qi)
4.5W reverse wireless
Misc Colors Phantom Gray, Phantom White, Phantom Violet, Phantom Pink
Models SM-G991B, SM-G991B/DS, SM-G991U, SM-G991U1, SM-G991W, SM-G991N, SM-G9910, SM-G991Q, SCG09
SAR 0.74 W/kg (head)     1.08 W/kg (body)    
SAR EU 0.46 W/kg (head)     1.51 W/kg (body)    
Price $ 169.94 / C$ 239.00 / £ 157.21 / € 229.00
Tests Performance AnTuTu: 584055 (v8)
GeekBench: 3238 (v5.1)
GFXBench: 60fps (ES 3.1 onscreen)
Display 856 nits max brightness (measured)
Camera Photo / Video
Loudspeaker -26.4 LUFS (Good)
Battery (old)
Endurance rating 93h

Disclaimer. We can not guarantee that the information on this page is 100% correct. Read more

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Pricing
These are the best offers from our affiliate partners. We may get a commission from qualifying sales.

128GB 8GB RAM $ 169.94 C$ 239.00
256GB 8GB RAM $ 213.82 C$ 699.00

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Samsung Galaxy S21 5G review

Samsung Galaxy S21 5G review

Unpacking 2021 with a bang, we have the Samsung Galaxy S21 for you today. Samsung has rearranged its yearly release schedule to pull its high-end S-series reveal for January, and could there be a...

Read

Samsung Galaxy S21 5G - user opinions and reviews

?
  • Anonymous
  • 3qM
  • 12 hours ago

A lot better after Android 15 upgrade, often old software can corrupt and slow down your phone, even on iPhone. Great to access the new AI features without upgrading to something new. Also, there was a black screen issue and it seems to have been a s...

  • Reply
G
  • Galaxy s21.
  • Y1X
  • 22 May 2025

Great phone the only issue i had so far was heating up very fast

  • Reply
S
  • Simon
  • m0y
  • 22 May 2025

Still a great phone! I have both S21, S22 and S23. I can tell you that S21 is better than S22. Better photography, better performance, better display and of course better battery. Now I will sell S22 and keep only S23 and S21. S23 slightly better tha...

  • Reply
  • Read all opinions
  • Post your opinion
Total user opinions: 2098

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Prices

Samsung Galaxy S21 5G
These are the best offers from our affiliate partners. We may get a commission from qualifying sales.
128GB 8GB RAM
  • $ 169.94
  • C$ 239.00
  • £ 157.21
  • € 229.00
256GB 8GB RAM
  • $ 213.82
  • C$ 699.00
  • £ 169.95
  • € 302.06
Show all prices

Galaxy S21 5G in the news

  • Samsung Members officially details One UI 7.0 rollout 17 Apr 2025
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  • Samsung publishes a longer list of Galaxy devices eligible for the One UI 7 update,  it goes back to 2021 20 Mar 2025
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