📱 Model features |
| Samsung Galaxy S21 Ultra |
| |
| Other model names | Galaxy S21 Ultra 5G (SM-G998U1) Unlocked |
| Country or region available | 
USA |
| Brand | Samsung |
| Release date | 1/29/2021, Announced: 1/14/2021 |
| Depth | 8.9 millimeters (0.35 inches) |
| Size (width x height) | 75.6 x 165.1 millimeters (2.98 x 6.5 in) |
| Weight | 227 grams (7.95 ounces) |
| Build, materials | Aluminum frame, glass front/back |
| Protection against water and others | IP68 certified: water-resistant up to 1.5 meters for 30min and dust-resistant |
🤖 Operating System |
| Samsung Galaxy S21 Ultra |
| System version | Android 11 |
| Firmware update | Android 13 |
| User Interface | One UI 3.1 / 4.1 / 5.0 |
⚙️ Processor |
| Samsung Galaxy S21 Ultra |
| Chipset | 64bit: Qualcomm Snapdragon 888 (SM8350) (5nm) |
| CPU | Octa-core, 3 processors:
1x 2.84GHz Kryo 680 (Single-core)
3x 2.42GHz Kryo 680 (Triple-core)
4x 1.8GHz Kryo 680 (Quad-core) |
| GPU graphical controller | Qualcomm Adreno 660 (840MHz) |
| Performance (benchmark) | AnTuTu: 681099 (v8), 809165 (v9)
Geekbench: 3539 (v5.2)
GFXBench: 54fps (ES 3.1 onscreen) |
💽 Memory and storage |
| Samsung Galaxy S21 Ultra |
| RAM memory | 16GB LPDDR5 |
| Internal storage | 512GB (457GB available)
UFS 3.1 |
| External storage | Not supported |
📲 Display |
| Samsung Galaxy S21 Ultra |
| Display type | Dynamic AMOLED |
| Screen size | 6.8" inches |
| Screen-to-body ratio | ~89.4% (screen-to-body ratio) |
| Display resolution | 1440x3200 pixels (20:9) |
| Touchscreen | Capacitive Multitouch 10-points |
| Pixel density (dot pitch) | 516 PPI |
| Colors | 16 million |
| Scratch-resistant glass | Gorilla Glass Victus |
| Refresh rate | 120Hz |
| Display features | 1500nits[peak]
HDR10+
Always-On Display |
📶 Mobile networks |
| Samsung Galaxy S21 Ultra |
| Dual-SIM | Dual-SIM Standby - Call active on one sim card |
| SIM card | 1 slot (Single-SIM)
nano-SIM (4FF) + e-SIM |
| Maximum Download / Upload | 5000/1920 Mbps |
| Network technology | 2G, 3G, 4G, 5G |
| Frequency, bands | Expand band detailsCollapse details |
| GSM MHz band | Quad-Band 850/900/1800/1900 |
| Primary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 |
| Primary 3G network | CDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100 |
| Primary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71)
TD-LTE (38, 39, 40, 41, 46, 48)
VoLTE |
| Primary 5G network | SA/NSA/Sub6 (2, 5, 25, 41, 66, 71)
mmWave (260, 261) |
| Primary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
| Secondary 2G network | CDMA 800/1900, GSM 850/900/1800/1900 |
| Secondary 3G network | CDMA2000 1xEV-DO
UMTS 850/900/1700/1900/2100 |
| Secondary 4G network | LTE Cat20 (1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 30, 66, 71)
TD-LTE (38, 39, 40, 41, 46, 48)
VoLTE |
| Secondary data network | GPRS, EDGE, CDMA2000 EV-DO Rev 0, CDMA2000 EV-DO Rev A, UMTS, HSDPA, HSUPA, HSPA+, TD-LTE, LTE, LTE-A, SA/NSA, Sub6 |
📷 Camera |
| Samsung Galaxy S21 Ultra |
| Back camera (main camera) | (quad camera)
108 megapixels
10MP periscope telephotof/4.9240mm1/3.24"1.22µmPDAFOIS10x-optical-zoom
10MP telephotof/2.470mm1/3.24"1.22µmPDAFOIS3x-optical-zoom
12MP ultrawidef/2.213mm1/2.55"1.4µmPDAFSuper-Steady-video |
| Main camera resolution | 12000x9000 pixels |
| Video recording (primary) | 8K UHD (7680x4320) 24 fps |
| Flash | LED flash |
| Focal aperture | f/1.8 (aperture) |
| Focal length | 26mm lens |
| Sensor size | 1/1.33" inches |
| Pixel size | 1.8µm pixel |
| Autofocus | PDAF: phase detection autofocus on both cameras |
| Touch focus | Supported |
| Image stabilization | OIS: Optical stabilization |
| Zoom | Digital and optical zoom |
| Face/smile detection | Face detection, Smile detection |
| BSI sensor | Supported |
| HDR | HDR photo/video on both cameras |
| Camera extras | 4K@60fps
1080p@240fps
720p@960fps |
📸 Front camera |
| Samsung Galaxy S21 Ultra |
| Front camera (secondary) | 40 megapixels |
| Front camera resolution | 7296x5472 pixels |
| Video recording (secondary) | 4K UHD (3840x2160) |
| Front flash | Not supported |
| Focal aperture | f/2.2 (aperture) |
| Focal length | 26mm lens |
| Sensor size | 1/2.8" inches |
| Pixel size | 0.7µm pixel |
🔉 Sound and multimedia |
| Samsung Galaxy S21 Ultra |
| Loudspeaker | Stereo sound
32-bit/384kHz
Dolby Atmos
Tuned by AKG |
| Active noise cancellation | 2 microphones or more |
| Radio | FM |
| TV | Not supported |
| Video formats | MP4, H.265, H.264, H.263, XviD, MKV |
| Audio formats | MP3, WAV, WMA, eAAC+, FLAC |
🔌 Connectivity |
| Samsung Galaxy S21 Ultra |
| USB | USB 3.2 Type-C, USB OTG On-The-Go |
| Audio output | Type-C reversible connector |
| TV output | USB Type-C (reversible) |
| Bluetooth | 5.2 + A2DP/LE |
| WiFi | 802.11 a/b/g/n/ac/ax [wifi6] (2.4GHz, 5GHz) + MIMO
WiFi Direct, hotspot |
| DLNA | Supported |
| GPS | A-GPS, GeoTagging, GLONASS, GALILEO, BeiDou |
| NFC | Supported |
| Infrared port | Not supported |
🧭 Sensors |
| Samsung Galaxy S21 Ultra |
| Sensors | Accelerometer
Ambient Light sensor
Barometer
Compass
Face unlock
Fingerprint sensor (under display)
Gesture
Gyroscope
Hall effect
Proximity sensor
UWB (Ultra Wide Band) |
| Vibrating alert | Supported |
🔋 Battery |
| Samsung Galaxy S21 Ultra |
| Battery type | LiPo: Li-Ion polymer (Non removable) |
| Battery capacity | 5000 mAh |
| Charger, watts | 25W Wired fast charging
USB Power Delivery 3.0 |
| Wireless charging | 15W Qi wireless charging (Qi/PMA)
4.5W Reverse wireless charging |
| Talk time autonomy | feature not registered |
| Standby | feature not registered |
➕ Other features |
| Samsung Galaxy S21 Ultra |
| Call control | Voice dialing, Voice recorder, Voice commands |
| Messaging | SMS (T9), MMS, E-mail, Push mail |
| Hands-free calling | Supported |
| Video calling | Supported |
| Ringtones | Polyphonic and customized |
| Web browser | HTML, XHTML, HTML5 |
| Antenna | Internal antenna |
| Qwerty physical keyboard | Not supported |
| Miscellaneous | • Colors: Phantom Black, Silver, Titanium, Navy, Brown
• Samsung Pay (Visa, MasterCard)
• Samsung DeX
• Stylus pen support |
☢️ Radiation rate |
| Samsung Galaxy S21 Ultra |
| SAR 1.6W/kg (USA, Mexico, etc.) | 0.77W/kg (head), 1.02W/kg (body) |
| SAR 2W/kg (Europe, UK, etc.) | feature not registered |