Dimensions & Weight
- Galaxy S21 5G
- Dimensions: 151.7 x 71.2 x 7.9mm
- Weight: 169g
*Galaxy S21 5G mmWave model weighs 171g.
- Galaxy S21+ 5G
- Dimensions: 161.5 x 75.6 x 7.8mm
- Weight: 200g
*Galaxy S21+ 5G mmWave model weighs 202g.
- Galaxy S21 Ultra 5G
- Dimensions: 165.1 x 75.6 x 8.9mm
- Weight: 227g
*Galaxy S21 Ultra 5G mmWave model weighs 229g.
Display
- Galaxy S21 5G
- 6.2″ flat FHD+ Dynamic AMOLED 2XInfinity-O Display (2400×1080)
- 421 ppi
- HDR10+ certified
- 120Hz refresh rate
- Galaxy S21+ 5G
- 6.7″ flat FHD+ Dynamic AMOLED 2XInfinity-O Display (2400×1080)
- 394 ppi
- HDR10+ certified
- 120Hz refresh rate
- Galaxy S21 Ultra 5G
- 6.8″ edge Quad HD+ Dynamic AMOLED 2XInfinity-O Display (3200×1440)
- 515 ppi
- HDR10+ certified
- 120Hz refresh rate
- *Infinity-O Display: a near bezel-less, full-frontal screen.
- *Measured diagonally, Galaxy S21 5G’s screen size is 6.2″ in the full rectangle and 6.1″ with accounting for the rounded corners, Galaxy S21+ 5G’s screen size is 6.7″ in the full rectangle and 6.5″ with accounting for the rounded corners and Galaxy S21 Ultra 5G’s screen size is 6.8″ in the full rectangle and 6.6″ with accounting for the rounded corners; actual viewable area is less due to the rounded corners and camera hole.
S Pen
S Pen
- Pressure levels: 4096
- Pen tip diameter: 0.7mm
- Air Command
- Air view
- Live message
- Samsung Notes
- Screen off memo
- Smart select
- Screen write
- Translate
- Bixby Vision
- Glance
- Magnify
- PENUP
- Coloring
- AR Doodle
- Write on calendar
- *S Pen sold separately.
- *S Pen only compatible with Galaxy S21 Ultra 5G.
- *Bluetooth and wireless control functions not supported.
Camera
Front Camera
Galaxy S21 5G

- 1 10MP Selfie Camera
- Dual Pixel AF
- Pixel size: 1.22μm
- FOV: 80˚
- F.No (aperture): F2.2
Galaxy S21+ 5G

- 1 10MP Selfie Camera
- Dual Pixel AF
- Pixel size: 1.22μm
- FOV: 80˚
- F.No (aperture): F2.2
Galaxy S21 Ultra 5G

- 1 40MP Selfie Camera
- PDAF
- Pixel size: 0.7μm (10MP 1.4μm)
- FOV: 80˚
- F.No (aperture): F2.2
Rear Camera
Galaxy S21 5G
- Triple camera

- 1 12MP Ultra Wide Camera
- Pixel size: 1.4μm
- FOV: 120˚
- F.No (aperture): F2.2
- 2 12MP Wide-angle Camera
- Super Speed Dual Pixel AF, OIS
- Pixel size: 1.8μm
- FOV: 79˚
- F.No (aperture): F1.8
- 1/1.76″ image sensor size
- 3 64MP Telephoto Camera
- Pixel size: 0.8μm
- FOV: 76˚
- F.No (aperture): F2.0
- 1/1.72″ image sensor size
- Space Zoom
- Hybrid Optic Zoom 3x
- Super Resolution Zoom up to 30x
OIS (Optical Image Stabilization)
Tracking AF
Galaxy S21+ 5G
- Triple camera

- 1 12MP Ultra Wide Camera
- Pixel size: 1.4μm
- FOV: 120˚
- F.No (aperture): F2.2
- 2 12MP Wide-angle Camera
- Super Speed Dual Pixel AF, OIS
- Pixel size: 1.8μm
- FOV: 79˚
- F.No (aperture): F1.8
- 1/1.76″ image sensor size
- 3 64MP Telephoto Camera
- Pixel size: 0.8μm
- FOV: 76˚
- F.No (aperture): F2.0
- 1/1.72″ image sensor size
- Space Zoom
- Hybrid Optic Zoom 3x
- Super Resolution Zoom up to 30x
OIS (Optical Image Stabilization)
Tracking AF
Galaxy S21 Ultra 5G
-
- Quad camera

- 1 12MP Ultra Wide Camera
- Super Speed Dual Pixel AF
- Pixel size: 1.4μm
- FOV: 120˚
- F.No (aperture): F2.2
- 2 108MP Wide-angle Camera
- PDAF, OIS
- Pixel size: 0.8μm (12MP 2.4μm)
- FOV: 83˚
- F.No (aperture): F1.8
- 1/1.33″ image sensor size
- 3 10MP Telephoto Camera
- Dual Pixel AF
- Pixel size: 1.22μm
- FOV: 35˚
- F.No (aperture): F2.4
- 4 10MP Telephoto Camera
- Dual Pixel AF
- Pixel size: 1.22μm
- FOV: 10˚
- F.No (aperture): F4.9
- Space Zoom
- Dual Optical Zoom 3x, 10x
- Super Resolution Zoom up to 100x
OIS (Optical Image Stabilization)
Laser AF
- *Hybrid Optic Zoom combines high-resolution image sensor and lens.
- *Super Resolution Zoom includes digital zoom, which may cause some image deterioration.
- *Laser AF sensor is used to enhance the AF performance in close range and low light environments.
Intelligent features
- Scene Optimizer
- Shot suggestions
- Scan QR codes
Camera modes
- Single Take
- Photo
- Video
- Pro
- Panorama
- Food
- Night
- Portrait
- Portrait Video
- Pro Video
- Super Slow-mo
- Slow motion
- Hyperlapse
- Director’s View
- *The format and amount of Single Take results may differ based on original capture. Results may also differ between rear and front camera captures.
- *Scene Optimizer supports 30 modes: Face, Baby, Person, Dog, Cat, Food, People, Beaches, Sky, Mountain, Sunset, Sunrise, City, Snow, Waterfall, Watersides, Scenery, Stage, Vehicles, Drinks, Flowers, Trees, Greenery, Animal, Shoes, Backlit, Indoor, Text, Clothes, Night view.
- *Accuracy of Scene Optimizer and Flaw Detection may differ depending on shooting conditions including multiple subjects, being out of focus or moving subjects.
- *Blink and blur detection works best when there are three or fewer people in the frame, 1.5 meters or closer to the camera.
- *Lens smudge and backlighting detection notifies once every 24 hours if flaw is detected. Backlight detection works when HDR is turned off.
Useful features
Camera settings bar
- Flash
- Timer
- Super Steady
- Ratio
- Video Size
- Motion photo
- Effects (Filter/My Filter/Face Retouch)
Camera settings menu
- Format and advanced options (HEIF/Raw copies/UW shape correction)
- Selfie color tone
- Advanced recording options (HEVC/HDR10+/Zoom-in MIC)
- Video Stabilization (VDIS)
- Auto HDR
- Tracking auto-focus
- Grid lines
AR features
- AR Doodle
- Quick Measure
Video Recording
Resolution
- 8K video recording at 24 fps (7680×4320)
- 4K UHD video recording at 60 fps (3840×2160)
- 1080p FHD video recording at 60 fps (1920×1080)
- 720p HD video recording at 30 fps (1280×720)
Shooting speed
- Super Steady 1080p video support at 60 fps
- Super Slow-mo 720p video support at 960 fps
- Slow motion 1080p video support at 240 fps
- Hyperlapse 4K video support at 30 fps
Other
- HDR10+ recording
- VDIS (Video Digital Image Stabilization)
- Digital zoom up to 12x
- High CRI LED Flash
- Tracking AF
- Take 33MP still photos while playing 8K video
- Playback zoom
- Video location tags
- *HDR10+ recording is currently in beta and only available on the rear camera. Quality may vary based on sharing platform and playback environment; HDR10+ color is only available on supported devices or platforms.
- *Super Steady is only available when shooting in FHD resolution.
- *Super Smooth 60fps Video supports FHD resolution in Auto mode only.
- *Super Slow-mo only supports HD resolution. On Galaxy S21 5G and S21+ 5G, users can record approximately 0.5 seconds of video captured at 960 fps with approximately 16 seconds of playback. On Galaxy S21 Ultra 5G, users can record approximately 1 second of video captured at 480 fps and digitally enhance the video to 960 fps with approximately 32 seconds of playback. Playback time can be edited in Super Slow-mo player.
Performance
BatteryCapacity
Galaxy S21 5G
- 4000mAh (typical)
Galaxy S21+ 5G
- 4800mAh (typical)
Galaxy S21 Ultra 5G
- 5000mAh (typical)
- *Typical value tested under third-party laboratory condition. Typical value is the estimated average value considering the deviation in battery capacity among the battery samples tested under IEC 61960 standard. Rated (minimum) capacity is 3880mAh for Galaxy S21 5G, 4660mAh for Galaxy S21+ 5G and 4855mAh for Galaxy S21 Ultra 5G. Actual battery life may vary depending on network environment, usage patterns and other factors.
Charging
- Fast Wireless Charging 2.0
- USB PD 3.0 (PPS) certified Fast Charging for wired charging (AFC and QC2.0 compatible)
- *WPC certified Wireless charging
- Wireless PowerShare
- *25W Travel Adapter sold separately.
- *Fast Wireless Charging 2.0 currently available with Wireless Charger Stand, Wireless Charger Duo Pad and Samsung devices that support wireless charging at 10W or higher. Sold separately. Actual charging speed may vary depending on the actual usage, charging conditions and other factors. Wireless charger requires power connection. Recommend using Samsung charging cable and/or travel adapter for optimal performance. Wireless charging under 5W (Normal-mode) is compatible with WPC.
- *Wireless PowerShare is limited to Samsung or other brand smartphones with Qi wireless charging, such as Galaxy S21 5G, Galaxy S21+ 5G, Galaxy S21 Ultra 5G, Galaxy Z Fold2, Galaxy Note20, Galaxy Note20 Ultra, Galaxy S20, S20+, S20 Ultra, Z Flip, Note10, Note10+, S10e, S10, S10+, Fold, S9, S9+, S8, S8+, S8 Active, S7, S7 edge, S7 Active, S6, S6 edge, S6 Active, S6 edge+, Note9, Note8, Note FE, Note5 and wearables such as Galaxy Buds Pro, Galaxy Buds Live, Galaxy Watch3, Galaxy Watch Active2, Galaxy Watch Active, Gear Sport, Gear S3, Galaxy Watch and Galaxy Buds. If battery power is lower than 30% Wireless PowerShare may not function. May not work with certain accessories, covers, other brand devices or some Samsung wearables. May affect call reception or data services, depending on your network environment.
Network &Connectivity
5G
- 5G Non-Standalone (NSA), Standalone (SA), Sub6 / mmWave
LTE
- Enhanced 4×4 MIMO, Up to 7CA, LTE Cat.20
- Up to 2.0Gbps Download / Up to 200Mbps Upload
Wi-Fi
- Wi-Fi 802.11 a/b/g/n/ac/ax 2.4G+5GHz, HE80, MIMO, 1024-QAM
- Up to 1.2Gbps Download / Up to 1.2Gbps Upload
Bluetooth
- Bluetooth® v 5.0, USB type-C, NFC,Location (GPS, Galileo, Glonass, BeiDou)
5G
- 5G Non-Standalone (NSA), Standalone (SA), Sub6 / mmWave
LTE
- Enhanced 4×4 MIMO, Up to 7CA, LTE Cat.20
- Up to 2.0Gbps Download / Up to 200Mbps Upload
Wi-Fi
- Wi-Fi 802.11 a/b/g/n/ac/ax 2.4G+5GHz+6GHz, HE160, MIMO, 1024-QAM
- Up to 2.4Gbps Download / Up to 2.4Gbps Upload
Bluetooth
- Bluetooth® v 5.2, USB type-C, NFC,Location (GPS, Galileo, Glonass, BeiDou)
- *Availability and actual quality may vary depending on network conditions, country and carrier.
- *5G network availability may vary depending on the country, network provider and user environment.
- *The bandwidths supported by the device may vary depending on the region or service provider.
- *Download and upload speeds reaching up to 2.4Gbps only available with Wi-Fi 6E. Wi-Fi 6E only supported on Galaxy S21 Ultra 5G.
- *Galileo and BeiDou coverage may be limited. BeiDou may not be available for certain countries.
- *Ultra Wide Band only supported on Galaxy S21+ 5G and S21 Ultra 5G.
AP
- 5㎚ 64-bit Octa-Core Processor * 2.9㎓ (Maximum Clock Speed) + 2.8㎓ + 2.2㎓
- 5㎚ 64-bit Octa-Core Processor * 2.8㎓ (Maximum Clock Speed) + 2.4㎓ + 1.8㎓
- *May vary depending on country and carrier.
Memory
Galaxy S21 5G
- 8GB RAM (LPDDR5) with 256GB internal storage
- 8GB RAM (LPDDR5) with 128GB internal storage
Galaxy S21+ 5G
- 8GB RAM (LPDDR5) with 256GB internal storage
- 8GB RAM (LPDDR5) with 128GB internal storage
Galaxy S21 Ultra 5G
- 16GB RAM (LPDDR5) with 512GB internal storage
- 12GB RAM (LPDDR5) with 256GB internal storage
- 12GB RAM (LPDDR5) with 128GB internal storage
- *Actual storage available may vary depending on pre-installed software.
SIM Card
Single SIM model
- one Nano SIM
Dual SIM model
- one Nano SIM and one eSIM
- two Nano SIMs and one eSIM
- two Nano SIMs
- *Availability of dual SIM may vary depending on country or carrier.
- *Nano SIM card sold separately.
- *Use of eSIM on Galaxy device may be enabled by software update or disabled in some countries where it is purchased. Availability of eSIM mobile plan may vary depending on carrier.
OS
- Android 11
Audio
Stereo speakers by AKG
- Surround sound with Dolby Atmos technology (Dolby Digital, Dolby Digital Plus included.)
Ultra high quality audio playback
- UHQ 32-bit & DSD64/128 support
- PCM: Up to 32 bits, DSD: DSD64/128
*DSD64 and DSD128 playback can be limited depending on the file format.
Audio playback format
- MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA, APE, DSF, DFF
Bluetooth
- Dual Audio: connect two Bluetooth devices to the Galaxy S21 5G, S21+ 5G or S21 Ultra 5G to play audio through the two devices simultaneously.
*The two connected devices may exhibit a slight difference in sound output.
- Scalable Codec: Enhanced Bluetooth connection under ambient radio frequency interference.
*Available only for certain accessories made by Samsung.
Recording
- Zoom-in MIC (Audio zoom) is an audio recording function that focuses on the direction of interest using a combination of 3 built-in MICs while video recording.
- BT MIC recording and BT MIX recording are available in ‘Pro Video’ mode. It allows you to capture sound more clearly even from a distance with the remote MIC (Bluetooth MIC).
- Pro Video mode provides useful manual options such as volume control, recording direction and MIC device selection.
Video
Video playback format
- MP4, M4V, 3GP, 3G2, AVI, FLV, MKV, WEBM
TV connection
- Wireless: Smart View (screen mirroring 1080p at 30 fps)
- Wired: supports DisplayPort over USB Type-C. Supports video out when connecting via HDMI Adapter. (DisplayPort 4K UHD at 60 fps)
Water Resistance
- IP68
*Galaxy S21 5G, S21+ 5G and S21 Ultra 5G are rated as IP68. Based on test conditions for submersion in up to 1.5 meters of freshwater for up to 30 minutes. Not advised for beach or pool use.
There are no reviews yet.