Samsung Galaxy S21 5G
Find the help you need
Popular topics
Start your device in Safe Mode
| 1. | From the home screen, swipe down to access settings. |
| 2. | Tap the power icon. |
| 3. | Tap Power off. |
| 4. | Tap Power off again. |
| 5. | Hold down the Side key to switch the device back on. |
| 6. | As the device is starting up, hold down the volume down button until the home screen appears. |
| 7. | The device will restart. Safe mode will now display in the bottom-left hand corner of your device to confirm that Safe mode has been enabled. |
| Steps complete | |
You can also start your device in Safe mode by following the below steps: | |
| 1. | From the home screen, swipe down to access settings. |
| 2. | Tap the power icon. |
| 3. | Tap and hold Power off. |
| 4. | Tap Safe mode. |
| 5. | The device will restart. Safe mode will now display in the bottom-left hand corner of your device to confirm that Safe mode has been enabled. |
| To exit out of Safe mode, simply turn your device off and on again as normal. |
Top specifications
SIM type
Dual SIM
SIM 1: Physical nano-SIM card
SIM 2: Physical nano-SIM card or eSIM
SIM 1: Physical nano-SIM card
SIM 2: Physical nano-SIM card or eSIM
Internal device memory
128GB/256GB
Max external memory
N/A
Charge rate
-
Device warranty
24 months
Battery
Removable battery
No
Talk time (mins)
-
Charge rate
-
Standby time (hrs)
-
Fast charge
Yes - 25W Super Fast Charge
Power saving
Power saving mode
Wireless charging
Yes - 15W Fast Wireless Charging
Battery capacity
4000mAh
Wireless PowerShare
Yes
Body
Height (mm)
151.7
Width (mm)
71.2
Depth (mm)
7.9
Weight (g)
171
Water resistant
Yes
Dust resistant
Yes
SIM type
Dual SIM
SIM 1: Physical nano-SIM card
SIM 2: Physical nano-SIM card or eSIM
SIM 1: Physical nano-SIM card
SIM 2: Physical nano-SIM card or eSIM
Connectivity
Wi-Fi Direct
Yes
Personal hotspot
Yes
Bluetooth
Yes
Wi-Fi (WLAN)
Wi-Fi 6
USB cable
Yes
Near Field Communication (NFC)
Yes
USB type
Type-C
Smartwatch compatible
Yes
Samsung DeX
Yes
Processor
CPU speed
Exynos 2100
Octa-core (up to 2.9GHz)
Octa-core (up to 2.9GHz)
Display
Resolution
2400x1080
Pixels
421 ppi
Touch screen
Yes
Size (inches)
6.2
Multi-touch
Yes
Brightness
1300 nit
Contrast ratio
2,000,000:1
Display type
Dynamic AMOLED 2X
Refresh rate
120 Hz
Messaging
Text messages
Yes
Multimedia messages
Yes
Email
Yes
IM
Yes
Network
Band
Quad
VoLTE (4G calling in UK)
Yes
VoLTE Roaming (4G calling abroad)
Yes
2G
Yes
3G
Yes
4G
Yes
5G
Yes
Works in the US
Yes
Platform
Operating system
Android
Android version
Android 11
Sensors
Accelerometer
Yes
Digital compass
Yes
Ambient light sensor
Yes
Proximity sensor
Yes
Gyroscope
Yes
Barometer
Yes
Memory
RAM
8GB
Device memory
128GB/256GB
Card slot
No
Card max size
N/A
Camera
HD video recording
Yes
Slow motion
Yes
No. of cameras
4
Primary camera
Triple rear-facing
Secondary camera
Front-facing
Front camera
No. of cameras
1
Resolution (max MP)
10
HD video recording
4K @ up to 60fps
Camera type
Front camera
Aperture
f/2.2
Field of vision (FOV)
80°
Pixel size
1.22μm
Rear camera
Resolution (max MP)
Wide camera: 12
Ultra Wide camera: 12
Telephoto camera: 64
Ultra Wide camera: 12
Telephoto camera: 64
No. of cameras
3
Camera type
Wide camera
Ultra Wide camera
Telephoto camera
Ultra Wide camera
Telephoto camera
Aperture
Wide camera: f/1.8
Ultra Wide camera: f/2.2
Telephoto camera: f/2.0
Ultra Wide camera: f/2.2
Telephoto camera: f/2.0
Flash
LED
Field of vision (FOV)
Wide camera: 79°
Ultra Wide camera: 120°
Telephoto camera: 76°
Ultra Wide camera: 120°
Telephoto camera: 76°
HD video recording
4K @ 30 or 60 fps
8K @ 24fps
8K @ 24fps
Optical Image Stabilization (OIS)
Yes
Pixel size
Wide camera: 1.8μm
Ultra Wide camera: 1.4μm
Telephoto camera: 0.8μm
Ultra Wide camera: 1.4μm
Telephoto camera: 0.8μm
Slow motion
Yes
Zoom
3x hybrid optical
6x high-res
30x digital
6x high-res
30x digital
Features
A-GPS
Yes
Web browser
Yes
Voice recording
Yes
Music player
Yes
Video player
Yes
Loudspeaker
Yes
Video calling
Yes
Document viewer
Yes
3.5mm headphone jack
No
Always On
Yes
Wi-Fi calling
Yes
Smart view
Yes
OTG compatible
Yes
S Pen support
No
Security
Fingerprint sensor
Yes
Facial recognition
Yes
Warranty
Device warranty
24 months
Flash
Flash type
LED
Virtual assistant
Bixby
Yes
More Samsung support
Visit Samsung's support pagesDid you find this page useful?
Help us improve our support pages.
That's great to hear.
Thanks for your feedback. We're glad you found this guide useful. If you'd like to submit further feedback about this guide, feel free to do so in the box below.
Sorry to hear that.
Thanks for your feedback. We're sorry you didn't find this guide useful. If you'd like to submit further feedback about this guide, feel free to do so in the box below.
Thanks for the feedback.
Your feedback will help us improve this page for other users.
If you're still struggling to find the help you need, get in touch.