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Phone Samsung SGH-X820 Samsung M520 Pantech Flex HTC Wildfire S (CDMA) ZTE Blade Max 2s
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 2.1" diag.
4 : 3
4.3" diag.
16 : 9
3.2" diag.
5 : 3
6" diag.
18 : 9
Display Resolution & Type 220 x 176 pixels
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~256 ppi)
AMOLED
320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
1080 x 2160 pixels
(~402 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz 60 Hz
Battery 650 mAh ? 1,830 mAh 1,230 mAh 4,000 mAh
Processor ? ? 1.5 GHz Qualcomm Snapdragon S4 Plus MSM8960 600 MHz Qualcomm S4 Plus MSM8227 1.4 GHz Qualcomm Snapdragon 435 (MSM8940)
RAM ? ? 1 GB ? 2 GB
Storage ? raw hardware ? raw hardware 8 GB 512 MB 32 GB
Main Camera 2 megapixel 1 megapixel 8 megapixel 5 megapixel 13 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture ? ? 1080p HD WVGA / 480p 1080p HD
Front Camera - - 2 megapixel - 5 megapixel
Weight 2.33 oz
(66g)
2.75 oz
(78g)
4.66 oz
(132g)
3.7 oz
(105g)
6.35 oz
(180g)
Dimensions 4.45" x 1.97" x 0.27"
(113 x 50 x 6.9 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
5.11" x 2.63" x 0.31"
(130 x 67 x 7.9 mm)
3.99" x 2.34" x 0.49"
(101 x 59 x 12.4 mm)
6.26" x 2.96" x 0.32"
(159 x 75 x 8.1 mm)
Form Factor Slab Slide Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android Android Android
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 13, 25, 26, 41

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology EDGE EVDO r0 LTE (Cat 3) EVDO rA LTE (Cat 6)
Features 
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - - - - Yes
GPS / Location - Yes n/a n/a n/a
Accessibility
Hearing Aid Compatible - Yes Yes Yes Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - - n/a n/a n/a
USB Yes Yes Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Wi-Fi - - Yes Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes Yes n/a n/a n/a
Ringer ID Yes Yes n/a n/a n/a
Voice Dialing - Yes n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers Yes - n/a n/a n/a
Data & Network
Data Tethering - Yes n/a n/a n/a
External Antenna Jack Yes - n/a n/a n/a
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes Yes Yes
Memory
Memory Card Slot - Yes Yes Yes Yes
Messaging
Email Client Yes - n/a n/a n/a
EMS / Picture Messaging Yes - n/a n/a n/a
Instant Messaging - - n/a n/a n/a
MMS Yes - n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
FM Radio - - - Yes * -
Headphone Jack (3.5mm) - - Yes Yes Yes
Music Player - Yes n/a n/a n/a
Photo & Video
DLNA - - Yes - -
TV Output Yes - - - -
Power
Fast Charging - - - - Yes
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List Yes Yes n/a n/a n/a
Voice Memo Yes Yes n/a n/a n/a
Software
Games Yes Yes n/a n/a n/a
Java (J2ME) Yes Yes n/a n/a n/a
Voice
HD Voice - - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X820 Samsung M520 Pantech Flex HTC Wildfire S (CDMA) ZTE Blade Max 2s
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X820 Samsung M520 Pantech Flex HTC Wildfire S (CDMA) ZTE Blade Max 2s

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