Nokia Lumia 820
AT&T - Available (since 09 Nov 2012)
Pros
- Big display (4.3 inches)
- High-resolution camera (8 megapixels)
- Dual core processor
- Lots of RAM (1024 MB RAM)
- Fast mobile data support (4G)
- NFC
Cons
- Low pixel density screen (217 ppi)
Description
Design
Display
- Physical size:
- 4.3 inches
- Resolution:
- 480 x 800 pixels
- Pixel density:
Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.
- 217 ppi
- Technology:
Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.
- AMOLED
- Colors:
- 16 777 216
- Touchscreen:
- Capacitive, Multi-touch
- Features:
- Light sensor, Proximity sensor
Battery
- Talk time:
- 14.00 hours
the average is 10 h (615 min)
- 14.00 hours
- Stand-by time:
- 13.8 days (330 hours)
the average is 18 days (433 h)
- 13.8 days (330 hours)
- Talk time (3G):
- 8.00 hours
the average is 9 h (532 min)
- 8.00 hours
- Stand-by time (3G):
- 13.8 days (330 hours)
the average is 24 days (565 h)
- 13.8 days (330 hours)
- Music playback:
- 55.00 hours
- Video playback:
- 5.00 hours
- Capacity:
- 1650 mAh
- Type:
- Li - Ion
- Not user replaceable:
- Yes
- Wireless charging:
- Optional
Hardware
- System chip:
System chip - Most modern handsets use an advanced chip that includes many of the device’s hardware modules like the processor, Wi-Fi, Bluetooth and sometimes even the wireless radio. This field shows what particular system chip (or System-on-a-Chip) is used in the phone.
- Qualcomm Snapdragon S4 Plus MSM8960
- Processor:
Processor - The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance.
- Dual core, 1500 MHz, Krait
- Graphics processor:
- Adreno 225
- System memory:
System memory - System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.
- 1024 MB RAM (Dual-channel, 500 MHz) / LPDDR2
- Built-in storage:
- 8 GB
- Storage expansion:
- microSD, microSDHC, microSDXC up to 64 GB
Camera
- Camera:
- Flash:
- Dual LED
- Aperture size:
Aperture size - The aperture of a camera is the opening through which light travels before it reaches the camera sensor. The smaller the number is, the bigger this opening is, allowing for more light to pass.
- F2.2
- Focal length (35mm equivalent):
- 28mm
- Features:
- Camcorder:
- 1920x1080 (1080p HD) (30 fps)
- Recording format:
- MPEG4, H.264
- Features:
- Continuous autofocus, Video calling
- Front-facing camera:
- 0.3 megapixels VGA
- Video capture:
- 640x480 (VGA) (30 fps)
Multimedia 
- Music player:
- Filter by:
- Album, Artist, Playlists
- Features:
- Album art cover, Background playback
- Supported formats:
- MP3, AAC, eAAC, eAAC+, WMA, WAV, M4A (Apple lossless), MP4, AMR
- Filter by:
- Video playback:
- Supported formats:
- MPEG4, H.263, H.264, WMV, 3GPP
- Supported formats:
Internet browsing
Technology
- GSM:
- 850, 900, 1800, 1900 MHz
- UMTS:
- 850, 900, 1900, 2100 MHz
- LTE:
- 800 MHz, 900 MHz, 1800 MHz, 2100 MHz, 2600 MHz
- Data:
- LTE Cat3 Downlink 100 Mbit/s, LTE Cat3/4 Uplink 50 Mbit/s, HSDPA+ (4G) 42.2 Mbit/s, UMTS, EDGE, GPRS
- Micro SIM:
- Yes
- Global Roaming:
- Yes
- Positioning:
Positioning - This field shows the positioning systems supported by the device. There are three main types: GPS, A-GPS and GLONASS. GPS - This is one of the most widespread global positioning technologies, developed and maintained by the U.S. government. It uses satellites in order to detect your location. Works best in clear weather. A-GPS - A-GPS stands for Assisted GPS and is the industry standard for positioning and navigation. “Assisted” means that it can use local wireless networks, in addition to satellites, for quicker and more precise localization. GLONASS - GLONASS is a global positioning system, developed by the Russian Federation. It’s very similar to GPS, but isn’t so popular in cell phones.
- GPS, A-GPS, S-GPS, Glonass, Cell ID, Wi-Fi positioning
- Navigation:
- Turn-by-turn navigation, Voice navigation
Phone features
- Phonebook:
- Organizer:
- Messaging:
- SMS, MMS, Threaded view, Predictive text input
- E-mail:
- IMAP, POP3, SMTP, Microsoft Exchange
- Instant Messaging:
- Windows Live / MSN
Connectivity
- Bluetooth:
- Yes
- Profiles:
- Advanced Audio Distribution (A2DP), Audio/Visual Remote Control Profile (AVRCP), Generic Access (GAP), Generic Audio/Video Distribution (GAVDP), Handsfree (HFP), Headset (HSP), Object Push (OPP), Phone Book Access (PBAP), Serial Port (SPP), Service Discovery Application (SDAP)
- Wi-Fi:
- 802.11 a, b, g, n, n 5GHz
- Mobile hotspot:
- Yes
- Wi-Fi Direct:
- Yes
- USB:
- USB 2.0
- Connector:
- microUSB
- Features:
- Mass storage device, USB charging
- Headphones connector:
- 3.5mm
- Charging connector:
- microUSB
- Other:
- NFC, Computer sync, OTA sync
Other features
- Notifications:
- Haptic feedback, Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone
- Additional microphone/s:
- for Noise cancellation
- Sensors:
- Accelerometer, Gyroscope, Compass
- Voice dialing, Voice commands, Voice recording
Regulatory Approval
- FCC approval:
FCC approval - The Federal Communications Commission (FCC) is an independent United States government agency, directly responsible to Congress. The FCC was established by the Communications Act of 1934 and is charged with regulating interstate and international communications by radio, television, wire, satellite and cable. The FCC's jurisdiction covers the 50 states, the District of Columbia, and U.S. possessions. Every wireless phone device that that is sold in the U.S. has to be tested and approved for sale by the FCC.
- Date approved:
Date approved - Shows the date when the particular phone is approved by the Federal Communications Commission
- 18 Oct 2012
- FCC ID value:
FCC ID value - Shows the FCC Identifying value of the particular phone
PYARM-825 link
- FCC ID value:
- Date approved:
- FCC measured SAR:
FCC measured SAR - The exposure standard for mobile devices employs a unit of measurement known as the Specific Absorption Rate, or SAR. The SAR limit stated in the international guidelines is 2.0 W/ kg*. Tests for SAR are conducted using standard operating positions with the device transmitting at its highest certified power level in all tested frequency bands. Although the SAR is determined at the highest certified power level, the actual SAR of the device while operating can be well below the maximum value.
- Head:
- 1.34 W/kg
- Body:
- 0.71 W/kg
- Product Specific Use:
- 0.99 W/kg
- Simultaneous Transmission:
- 1.58 W/kg
- Head:
Availability
- Officially announced:
- 05 Sep 2012
Shopping information
- Accessories:
- Nokia AC-50 MicroUSB Charger, Nokia Charging and Data Cable CA-190CD, Nokia Headset WH-208, Product user guide
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