Brand Samsung
Model SM-G991U Galaxy S21 5G UW Dual SIM TD-LTE US 128GB / SM-G991A
Released 2021 Jan 29
Announced 2021 Jan 14
Hardware Designer Samsung Electronics
Manufacturer Samsung Electronics
Codename Samsung Unbound M1
OEM ID G991UZIAATT
General Extras Haptic touch feedback
Device Category Smartphone
Width 71.2 mm
Height 151.7 mm
Depth 7.9 mm
Dimensions 2.80×5.97×0.31 inches
Mass 171 g
Platform Android
Operating System Google Android 11 (R)
Software Extras Voice Command , Business card recognition , Navigation software , Augmented Reality (AR) , Virtual Reality (VR) support , Intelligent personal assistant , Voice Recognition , Face Recognition
CPU Clock 2842 MHz
CPU Qualcomm Snapdragon 888 5G SM8350 (Lahaina), 2021, 64 bit, octa-core, 5 nm, Qualcomm Adreno 660 GPU
Samsung
RAM Type LPDDR5 SDRAM
RAM Capacity (converted) 8 GiB RAM
Non-volatile Memory Interface UFS 3.1
Non-volatile Memory Capacity (converted) 128 GB ROM
Display Hole 1-hole
Display Diagonal 158.4 mm
Resolution 1080×2400
Horizontal Full Bezel Width 6.2 mm
Display Area Utilization 86.9%
Pixel Density 422 PPI
Display Type AM-OLED display
Display Subtype Dynamic AM-OLED
Number of Display Scales 16.8M
Display Refresh Rate 120 Hz
Scratch Resistant Screen Gorilla Glass Victus
Graphical Controller Qualcomm Adreno 660
GPU Clock: 840 MHz
A/V Out DisplayPort
Microphone(s) stereo
Loudspeaker(s): stereo
SM-G991U Galaxy S21 5G UW Dual SIM TD-LTE US 128GB / SM-G991A
Audio Output: USB Type-C
Supported Cellular Bands GSM850 , GSM900 , GSM1800 , GSM1900 , UMTS2100 (B1) , UMTS1900 (B2) , UMTS1700/2100 (B4) , UMTS850 (B5) , UMTS900 (B8) , LTE2100 (B1) , LTE1900 (B2) , LTE1800 (B3) , LTE1700/2100 (B4) , LTE850 (B5) , LTE2600 (B7) , LTE900 (B8) , LTE700 (B12) , LTE700 (B13) , LTE700 (B14) , LTE800 (B18) , LTE800 (B19) , LTE800 (B20) , LTE1900 (B25) , LTE850 (B26) , LTE700 (B28) , LTE700 (B29) , LTE2300 (B30) , TD-LTE2600 (B38) , TD-LTE1900 (B39) , TD-LTE2300 (B40) , TD-LTE2500 (B41) , TD-LTE5900 (B46) , LTE1700/2100 (B66) , NR1900 (N2) , NR850 (N5) , NR1700/2100 (N66) , TD-NR39G (N260) bands
Supported Cellular Data Links GPRS , GPRS C12 , EDGE , EDGE MSC12 , UMTS , HSUPA , HSUPA 5.8 , HSDPA , HSPA+ 21.1 , DC-HSDPA 42.2 , LTE , LTE 100/50 , LTE 150/50 , LTE 300/50 , LTE 300/75 , LTE 300/100 , LTE 400/150 , LTE 450/50 , LTE 450/100 , LTE 600/50 , LTE 600/100 , LTE 1000/100 , LTE 1200/200 , LTE 1600 , LTE 2000/300 , NR 1500 , NR 2600 , NR 3700 , NR 4600 data links
SIM Card Slot e-SIM
Complementary Phone Services Voice transmission , Voice speaker , Vibrate , Speakerphone , ANC , HD Voice , VoLTE , ViLTE
SAR (body) 1.080 W/kg
Dual Cellular Network Operation Dual standby
Sec. Supported Cellular Networks: GSM850 , GSM900 , GSM1800 , GSM1900 , UMTS2100 (B1) , UMTS1900 (B2) , UMTS1700/2100 (B4) , UMTS850 (B5) , UMTS900 (B8) , LTE2100 (B1) , LTE1900 (B2) , LTE1800 (B3) , LTE1700/2100 (B4) , LTE850 (B5) , LTE2600 (B7) , LTE900 (B8) , LTE700 (B12) , LTE700 (B13) , LTE800 (B18) , LTE800 (B19) , LTE800 (B20) , LTE1900 (B25) , LTE850 (B26) , LTE700 (B28) , LTE700 (B29) , LTE2300 (B30) , TD-LTE2600 (B38) , TD-LTE1900 (B39) , TD-LTE2300 (B40) , TD-LTE2500 (B41) , TD-LTE5900 (B46) , LTE1700/2100 (B66)
Sec. Supported Cellular Data Links: GPRS , GPRS C12 , EDGE , EDGE MSC12 , UMTS , HSUPA , HSUPA 5.8 , HSDPA , HSPA+ 21.1 , HSPA+ 42.2 , DC-HSDPA 42.2 , LTE 100/50 , LTE 150/50 , LTE 300/50 , LTE 300/75 , LTE 300/100 , LTE 400/150 , LTE 450/50 , LTE 450/100 , LTE 600/50 , LTE 600/100 , LTE 1000/100 , LTE 1200/200 , LTE 1600 , LTE 2000/300
Sec. SIM Card Slot Nano-SIM (4FF)
Touchscreen Type Capacitive multi-touch screen
Expansion Interfaces No
USB USB 3.0 / 3.1 Gen 1 / 3.2 Gen 1×1
USB Services USB charging , USB fast charging , USB Host , USB OTG 1.3 , USB OTG 2.0 , USB PD , USB PD 2.0 , USB PD 3.0
USB Connector USB C reversible
Max. Charging Power 25.0 W
Bluetooth Bluetooth 5.0
Wireless LAN 802.11a , 802.11b , 802.11g , 802.11n , 802.11ac , 802.11ax
Wireless Services DLNA , Miracast , Wi-Fi Direct , Wi-Fi Tethering , WiDi , Wi-Fi Calling
NFC NFC A , NFC B
Samsung
FM Radio Receiver No
Complementary Satellite Services Simultaneous GPS , A-GPS , Dual-frequency GPS , Geotagging , QuickGPS , QZSS
Supported GLONASS protocol(s) L1OF , L2OF
Supported Galileo service(s) E1 , E5a
Camera Placement Rear
Camera Image Sensor BSI CMOS
Image Sensor Pixel Size 1.80 micrometer
Number of effective pixels 12.2 MP camera
Aperture (W) f/1.80
Zoom 2.2 x optical zoom
Focus PD AF
Video Recording 7680×4320 pixel
Flash single LED
Camera Extra Functions EIS , EIS (video) , OIS , HDR photo , HDR video , Red-eye reduction , Slow motion video , Burst mode , Refocus , Touch focus , Macro mode , Panorama Photo , Face detection , Face tagging , Smile detection , Face retouch , Face retouch (video) , Intelligent scene detection
Aux. Camera Image Sensor BSI CMOS
Aux. Cam. Image Sensor Pixel Size 1.40 micrometer
Aux. Camera Number of Pixels 12.2 MP aux. cam
Aux. Camera Aperture (W) f/2.20
Aux. Cam. Min. Equiv. Focal Length 13 mm
Aux. Camera Extra Functions EIS (video) , HDR photo , HDR video , Slow motion video , Burst mode , Panorama Photo , Face detection , Face tagging , Smile detection , Face retouch , Face retouch (video) , Intelligent scene detection
Samsung
Aux. 2 Camera Image Sensor BSI CMOS
Aux. 2 Camera Number of Pixels 64.4 MP aux. 2 cam
Aux. 2 Camera Aperture (W) f/2.00
Aux. 2 Cam. Min. Equiv. Focal Length 29 mm
Aux. 3 Camera Image Sensor No
Aux. 4 Camera Image Sensor No
Secondary Camera Placement Front
Secondary Camera Sensor BSI CMOS
Secondary Camera Number of pixels 10.0 MP sec. cam
Secondary Aperture (W) f/2.20
Secondary Camera Focus PD AF
Secondary Camera Extra Functions Pixel unification , HDR photo , HDR video , Slow motion video , Burst mode , Touch focus , Panorama Photo , Face detection , Face tagging , Smile detection , Face retouch , Face retouch (video) , Intelligent scene detection
Sec. Aux. Cam. Image Sensor No
Built-in compass 3D compass
Built-in accelerometer 3D accelerometer
Built-in gyroscope 3D gyro
Additional sensors Barometer , In-screen FP sensor , Hall , HR sensor , L sensor , P sensor , Step counter
Protection from solid materials 6 Totally protected from dust
Protection from liquids 8 Protected against immersion beyond 1m of depth
Immersion into liquids (depth limit) 150 cm
Immersion into liquids time limit 30 min
Battery Li-ion
Nominal Battery Voltage 3.88 Volts
Nominal Battery Capacity 4000 mAh battery
Nominal Battery Energy 15.52 Wh
Estimated Battery Life 15.0 hours
Talk Time: 30.0 hours
Wireless Charging PMA , Qi
Max. Wireless Charging Power 15.0 W
Market Countries USA
Market Regions North America
Mobile Operator AT&T Mobility
Price 799.99 USD
Added 2024-06-12

Specifications data description of this 📱Samsung SM-G991U Galaxy S21 5G UW Dual SIM TD-LTE US 128GB / SM-G991A📱

Title: Unveiling the Newest Device: All You Need to Know 📣

Introduction:
Welcome, technology enthusiasts! Today, we’re thrilled to introduce you to an exciting new device that’s about to take the market by storm. Packed with impressive features and cutting-edge technology, this device is truly a game-changer. Let’s dive into the details and explore the specification of the device.

🌐 Network:
Staying connected has never been easier, thanks to the device’s lightning-fast 5G and Wi-Fi 6 capabilities. Seamlessly browse, stream, and share content at breakneck speeds!

📅 Launch:
The new device will be launched in the second quarter of this year, so mark your calendars and get ready to experience the future firsthand.

🏋️ Body:
Boasting a sleek, slim design and a durable, lightweight build, the new device fits comfortably in your hand and promises to be a reliable companion.

🌈 Display:
Experience breathtaking visuals on the vibrant, high-resolution display (2560 × 1440 pixels), with adaptive refresh rates and HDR10+ support.

🤖 OS:
Running on the latest version of [Operating System], the new device guarantees an intuitive and seamless user experience.

🛠️ Chipset & 🚀 CPU:
The powerful chipset and top-tier CPU ensure smooth performance and efficient multitasking. Harness the power of technology and unlock your full potential.

🖥️ GPU:
Equipped with a high-performance GPU, the device delivers an immersive gaming experience and blazing-fast graphics rendering.

🧠 Memory 🗂️:
With up to [memory capacity] of super-fast LPDDR5 RAM and expansive UFS 3.1 storage, this device can handle all your multitasking needs while keeping files organized and loading times minimal.

📷 Camera 🎥:
Capture stunning photos and record remarkable videos using the state-of-the-art quad-camera setup (108 MP wide, 16 MP ultra-wide, 5 MP depth sensor, 5 MP macro lens) and a 48 MP front-facing camera.

🎮 Sound 🎵:
Featuring an advanced aptX HD audio codec and custom-tuned stereo speakers, this device guarantees crystal-clear calls and surround-sound immersion.

📡 Communications 📶:
Stay connected wherever you are with the latest GNSS technology and a wide range of supported wireless protocols, such as Bluetooth 5.2, NFC, and MST.

💡 Features 🎁:
Iris scanner, IP68 water and dust resistance, reverse wireless charging, and an under-display fingerprint sensor are just a few of the many premium features that make this device stand out.

🔋 Battery 🔌:
Lasting up to [battery capacity] on a single charge, the powerful battery will keep you going all day and features ultra-fast wireless and wired charging capabilities.

Conclusion:
We hope you enjoyed this comprehensive breakdown of the new device. Stay up-to-date, and don’t forget to share your thoughts in the comments. What do you think about the new device? Do you plan on purchasing it once it hits the market? Let us know your thoughts!