Snapdragon 821

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Snapdragon 821 Processor

As one of the most cutting-edge mobile processors ever created, the Qualcomm® Snapdragon™ 821 processor with X12 LTE builds on the momentum of our Snapdragon 820 processor. It is designed to support superior connectivity, graphics, photography, power and battery efficiency and helps set a new bar for smartphones, tablets, mobile virtual reality (VR) head-mounted displays and more.

Snapdragon X12 LTE

The Qualcomm® Snapdragon™ X12 LTE modem offers 3x faster peak upload speeds and 33% faster peak download speeds compared to those of X10 LTE.

Kryo CPU and Hexagon 680 DSP

The new Qualcomm® Kryo™ CPU has 2x performance and efficiency when compared to the CPU of the Snapdragon 810 processor. The Snapdragon 821 goes even further with up to 10% performance increase over the 820 processor. The new Qualcomm® Hexagon™ 680 DSP is also designed to bring significant improvement to performance and battery life.

Adreno 530 GPU

The Qualcomm® Adreno™ 530 GPU offers 40% improvement to graphics performance, compute capabilities, and power usage when compared to Adreno 430—giving the Snapdragon 821 processor a 5% performance bump over the 820 processor.

Spectra Camera ISP

14-bit Qualcomm Spectra™ Image Signal Processor (ISP) supports the capture of up to 28 megapixels with zero shutter lag.

Breakthrough Connectivity

With several built-in upgrades, the Snapdragon 821 processor offers our most advanced LTE and Wi-Fi capabilities yet.

Lightning-Fast LTE

Supporting LTE Category 12 download speeds of up to 600 Mbps, and LTE Category 13 uplink speeds of up to 150 Mbps, the Snapdragon 821 processor with X12 LTE supports 33% faster peak download speeds, and triple the peak upload speeds of the Snapdragon 810 processor with X10 LTE.

Advanced Wi-Fi

The Snapdragon 821 processor fundamentally changes the way Wi-Fi works with your phone by supporting both 802.11ad and 802.11ac 2x2 MU-MIMO—which allows Wi-Fi to be up to 2x or 3x faster than 802.11ac without MU-MIMO.

Versatile LTE-U

The Snapdragon 821 processor can access LTE connections in both licensed spectrum and unlicensed spectrum—boosting your connection speeds and mobile broadband access in normally congested areas.

New Possibilities of Power and Performance

By combining cutting-edge processing capabilities with power-efficient features, the Snapdragon 821 processor not only works harder than its predecessors, it also works smarter.

Powerful Kryo CPU

As our first custom-designed 64-bit quad-core CPU, the Kryo CPU uses Qualcomm® Symphony System Manager as an intelligent resource management tool for Snapdragon that extends control of task scheduling and power management across the entire processor, with a 10% bump in performance from the Snapdragon 820 processor to the 821 processor, supporting shorter boot times, faster app launch times, and smoother, more responsive user interactions.

Efficient Hexagon 680 DSP

Significant improvement to the Qualcomm Hexagon 680 digital signal processor (DSP) enables the CPU to offload many tasks for more efficient processing. Featuring Qualcomm All-Ways Aware™ technology, the Hexagon 680 DSP also allows for ultra-low power “always-on” sensors and advanced low power-image processing.

Less Time Charging

With Qualcomm® Quick Charge™ 3.0, users can spend less time charging and more time doing. As our fastest and most efficient charging technology yet, Quick Charge 3.0 is up to 4x faster than conventional charging and 38% more efficient than Quick Charge 2.0.

Stunning graphics, camera and VR capabilities

From capturing the perfect picture to capturing an enemy’s base, the Snapdragon 821 processor turns almost any game, photo, video or mobile virtual reality (VR) experience into an absolute spectacle.

Exceptional mobile VR

A mobile virtual reality headset with the Snapdragon 821 processor heightens every sense, igniting the VR experience like never before. Combining incredibly vivid pixel quantity and quality, synchronized, high-resolution audio, immersive 3D audio and the most natural feel possible with precise motion tracking and minimal latency, all the features of the Snapdragon 821 processor work together to help transport users to a virtual world.

Immersive Visual Graphics

The next generation of visual processing technologies is finally here, thanks to the power of the new Adreno 530 GPU. As our highest performance GPU yet, the Adreno 530 in the Snapdragon 821 processor along with the Kryo CPU are capable of generating photorealistic graphics for console-quality gaming and next-generation virtual reality apps, while delivering up to 40% improvement to graphics performance and compute capabilities when compared to the Adreno 430, and 5% speed increase over Snapdragon 820.

Advanced Qualcomm Spectra Camera ISP

The Snapdragon 821 processor harnesses the newest innovations in mobile photography to redefine today’s camera capabilities, including Qualcomm® Clear Sight™ camera features and Dual Phase Detection Autofocus (PDAF). Supported by the latest 14-bit image sensors, hybrid autofocus and multi-sensor fusion algorithms, the Qualcomm Spectra camera ISP captures a wider range of colors and supports computational photography. Plus, the Snapdragon 821 processor also has Hexagon 680 with HVX (Hexagon Vector eXtensions), which supports advanced imaging and computer vision.

Snapdragon 821 Processor Specs

Cellular Modem

Modem Name

  • Qualcomm® Snapdragon™ X12 LTE modem

LTE Category

  • LTE Category 13 (uplink)
  • LTE Category 12 (downlink)

Downlink Features

  • 3x20 MHz carrier aggregation
  • Up to 256-QAM

Uplink Features

  • Qualcomm® Snapdragon™ Upload+
  • 2x20 MHz carrier aggregation
  • Up to 64-QAM

Peak Download Speed

  • 600 Mbps

Peak Upload Speed

  • 150 Mbps

Supported Cellular Technologies

  • LTE-U
  • LWA
  • LTE Broadcast
  • CDMA 1x
  • EV-DO

Multi SIM

  • LTE Dual SIM Dual Standby (DSDS)

Next-generation Calling Services

  • Voice over Wi-Fi (VoWiFi) with LTE call continuity
  • HD Voice over 3G and VoLTE


Wi-Fi Standards

  • 802.11ad
  • 802.11ac Wave 2
  • 802.11n
  • 802.11a/b/g

Wi-Fi Spectral Bands

  • 2.4 GHz
  • 5 GHz
  • 60 GHz

Peak Speed

  • 867 Mbps

Channel Utilization

  • 20/40/80 MHz

MIMO Configuration

  • 2x2 (2-stream)

Peak QAM

  • 256 QAM

Wi-Fi Features

  • Multi-gigabit Wi-Fi


Bluetooth Version

  • Bluetooth 4.1


Satellite Systems Support

  • GPS
  • Beidou
  • Galileo

Global Emergency Services Support

  • Assisted GPS
  • OTDOA (LTE-based positioning)

Advanced Location Features

  • Low Power Geofencing and Tracking
  • Sensor-assisted Navigation
  • Pedestrian Navigation


Near Field Communications

  • Supported



  • Qualcomm® RF360™ front-end solution


USB Version

  • USB 3.0
  • USB 2.0


Megapixel Support

  • Up to 28 MP camera

Image Sensor Processor

  • Qualcomm Spectra™ image sensor processor
  • 2x Image Sensor Processor (ISP)
  • 14-bit
  • Dual Phase Detection Autofocus (PDAF)
  • Qualcomm® Clear Sight™ camera features


Video Capture

  • Up to 4K Ultra HD video capture @ 30FPS

Video Playback

  • Up to 4K Ultra HD video playback

Codec Support

  • H.264 (AVC)
  • H.265 (HEVC)


Maximum On-Device Display Support

  • 4K Ultra HD
  • 3840x2160

Maximum External Display Support

  • Up to 4K


Audio Technology

  • Qualcomm Aqstic™ audio technology

Qualcomm Aqstic™ audio codec playback support

  • Dynamic range: 130dB
  • THD+N: -109dB
  • PCM up to 192kHz/24bit
  • Dual oscillator support (44.1kHz/48kHz)

Qualcomm Aqstic™ power consumption

  • Playback: 26mW for high performance mode, 6.6mW for low power mode
  • Low power voice activation: 0.65mA

Qualcomm Aqstic™ audio codec recording support

  • Dynamic range: 109dB
  • THD+N: -103dB
  • Sampling: Up to 192kHz/24bit

Qualcomm Aqstic™ speaker amplifier output power

  • Up to 4W output power
  • Speaker Protection


CPU Clock Speed

  • Up to 2.4 GHz

CPU Cores

  • Quad-core CPU
  • 4x Qualcomm® Kryo™ CPU

CPU Bit Architecture

  • 64-bit


DSP Technology

  • Qualcomm® Hexagon™ 680 DSP
  • Qualcomm All-Ways Aware™ technology


Process Technology

  • 14 nm


GPU Name

  • Qualcomm® Adreno™ 530 GPU

API Support

  • OpenGL ES 3.2
  • OpenCL 2.0 full
  • Vulkan 1.0
  • DX11.2


Qualcomm® Quick Charge™ Support

  • Qualcomm® Quick Charge™ 3.0 technology

Qualcomm® WiPower™ Support

  • Qualcomm® WiPower™ wireless charging

Security Support

Security Features

  • Qualcomm® Content Protection
  • Qualcomm® Device Lock Authentication
  • Qualcomm® Fingerprint Sensors
  • Qualcomm® Mobile Security
  • Qualcomm® Processor Security
  • Malware Protection


Memory Speed

  • 1866MHz

Memory Type

  • Dual-Channel
  • LPDDR4



  • UFS 2.0


  • SD 3.0 (UHS-I)


  • eMMC 5.1
  1. Via WCD9335

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