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Phone Samsung SGH-T809 / SGH-D820 Nokia 7.1 AT&T Vista BlackBerry 7100 / 7105 Nokia Lumia 521 / 520
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5.8" diag.
19 : 9
5.5" diag.
18 : 9
? 4" diag.
5 : 3
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
1080 x 2280 pixels
(~432 ppi)
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
240 x 260 pixels
LCD (Color)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery ? 3,060 mAh 2,450 mAh ? 1,430 mAh
Processor ? Qualcomm Snapdragon 636 2 GHz MediaTek Helio A22 (MT6761V) ? 1 GHz Qualcomm Snapdragon S4 MSM8270
RAM ? 4 GB * 3 GB ? 512 MB
Storage ? raw hardware 64 GB * 32 GB ? raw hardware 8 GB
Main Camera 1 megapixel 12 megapixel 8 megapixel - 5 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture CIF (352 x 288) 4K UHD 1080p HD - 720p HD
Front Camera - 8 megapixel 5 megapixel - -
Weight 3.35 oz
(95g)
5.64 oz
(160g)
5.51 oz
(156g)
4.3 oz
(122g)
4.39 oz
(124g)
Dimensions 3.9" x 2" x 0.58"
(99 x 51 x 14.7 mm)
5.89" x 2.8" x 0.31"
(150 x 71 x 8 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
4.7" x 2.3" x 0.7"
(119 x 58 x 17.8 mm)
4.72" x 2.52" x 0.39"
(120 x 64 x 9.9 mm)
Form Factor Slide Slab Slab Slab Slab
Platform / OS (proprietary) Android Android BlackBerry OS Windows
Network Bands

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 7, 12, 13, 17, 28, 38, 66

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

Data Technology EDGE LTE (Cat 6) LTE (Cat 4) GPRS HSPA+ 21
Features 
Fingerprint Reader - Yes
stand-alone
- - -
Flashlight - Yes Yes - -
GPS / Location - n/a n/a n/a n/a
Accessibility
Hearing Aid Compatible Yes
M3 (mostly compatible)
- Yes
M4, T4 (very tele-coil compatible)
- Yes
M3, T4 (very tele-coil compatible)
Multiple Languages Yes n/a n/a n/a n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Ringer Profiles - - - Yes -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Mobile Hotspot - n/a n/a n/a n/a
NFC - Yes - - -
USB Yes Yes
USB Type C
Yes
USB Type C
Yes Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes - Yes
Contacts
Picture ID Yes n/a n/a n/a n/a
Ringer ID Yes n/a n/a n/a n/a
Voice Dialing - n/a n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a n/a
Real-Music Ringers Yes n/a n/a n/a n/a
Data & Network
Data Tethering Yes n/a n/a n/a n/a
Dual-SIM - Yes - - -
WAP / Web Browser Yes n/a n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen - Yes
Capacitive
Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes - Yes
Messaging
Email Client - n/a n/a n/a n/a
EMS / Picture Messaging Yes n/a n/a n/a n/a
Instant Messaging Yes n/a n/a n/a n/a
MMS Yes n/a n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a n/a
Music
Headphone Jack (3.5mm) - Yes Yes - Yes
Music Player Yes n/a n/a n/a n/a
Stereo Speakers Yes - - - -
Power
Fast Charging - Yes - - -
Productivity
Alarm Yes n/a n/a n/a n/a
Calculator Yes n/a n/a n/a n/a
Calendar Yes n/a n/a n/a n/a
To-Do List Yes n/a n/a n/a n/a
Voice Memo Yes n/a n/a n/a n/a
Software
Games Yes n/a n/a n/a n/a
Java (J2ME) Yes n/a n/a n/a n/a
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) - n/a n/a n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-T809 / SGH-D820 Nokia 7.1 AT&T Vista BlackBerry 7100 / 7105 Nokia Lumia 521 / 520
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-T809 / SGH-D820 Nokia 7.1 AT&T Vista BlackBerry 7100 / 7105 Nokia Lumia 521 / 520

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