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Phone Samsung SGH-X640 HTC Desire 555 ZTE Blade Z Max Kyocera 1155 Motorola Sidekick Slide
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 5" diag.
16 : 9
6" diag.
16 : 9
? ?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~367 ppi)
LCD (TFT/TFD)
? 320 x 240 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery 800 mAh 2,200 mAh 4,080 mAh 975 mAh ?
Processor ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) 1.4 GHz Qualcomm Snapdragon 435 (MSM8940) ? 225 MHz TI OMAP 850
RAM ? 2 GB 2 GB ? ?
Storage ? raw hardware 16 GB 32 GB ? raw hardware ? raw hardware
Main Camera Yes 8 megapixel 16 megapixel - 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - 720p HD 1080p HD - -
Front Camera - 5 megapixel 8 megapixel - -
Weight 3 oz
(85g)
4.93 oz
(140g)
6.58 oz
(186g)
4.34 oz
(123g)
5.3 oz
(150g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.78" x 2.79" x 0.33"
(147 x 71 x 8.4 mm)
6.51" x 3.28" x 0.33"
(165 x 83 x 8.3 mm)
4.72" x 1.89" x 0.95"
(120 x 48 x 24.1 mm)
4.65" x 2.44" x 0.69"
(118 x 62 x 17.5 mm)
Form Factor Clamshell Slab Slab Slab Slide
Platform / OS (proprietary) Android Android (proprietary) (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 66

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 850, 900, 1800, 1900

Data Technology GPRS LTE (Cat 4) LTE (Cat 6) - EDGE
Features 
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight - Yes Yes - -
Accessibility
Adjustable Text Size - n/a n/a - Yes
Hearing Aid Compatible - Yes * Yes - -
Multiple Languages Yes n/a n/a Yes -
TTY/TDD (Digital) - Yes Yes - -
Alerts
Ringer Profiles - - - - Yes
Connectivity
Bluetooth - Yes Yes - Yes
USB - Yes
Micro-USB
Yes
USB Type C
- Yes
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
- -
Contacts
Picture ID Yes n/a n/a - Yes
Ringer ID Yes n/a n/a - Yes
Customization
Custom Graphics Yes n/a n/a - Yes
Custom Ringtones Yes n/a n/a - Yes
Real-Music Ringers - n/a n/a - Yes
Data & Network
WAP / Web Browser Yes n/a n/a - Yes
Input
Predictive Text Entry Yes n/a n/a - -
Side Keys Yes Yes Yes - Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen - Yes Yes - -
Memory
Memory Card Slot - Yes Yes - Yes
Messaging
Email Client - n/a n/a - Yes
EMS / Picture Messaging Yes n/a n/a - -
Instant Messaging - n/a n/a - Yes
MMS Yes n/a n/a - Yes
Text Messaging Templates Yes n/a n/a Yes -
Music
FM Radio - Yes Yes - -
Headphone Jack (3.5mm) - Yes Yes - -
Music Player - n/a n/a - Yes
Photo & Video
DLNA - Yes - - -
Miracast - Yes - - -
Power
Fast Charging - - Yes - -
Productivity
Alarm Yes n/a n/a Yes Yes
Calculator Yes n/a n/a Yes -
Calendar Yes n/a n/a - Yes
To-Do List Yes n/a n/a - Yes
Voice Memo Yes n/a n/a - -
Software
Games Yes n/a n/a Yes Yes
Java (J2ME) Yes n/a n/a - Yes
Voice
HD Voice - Yes Yes - -
Headset Jack (2.5 mm) Yes n/a n/a Yes Yes
Speaker Phone Yes Yes Yes - Yes
  * Some versions only
  Samsung SGH-X640 HTC Desire 555 ZTE Blade Z Max Kyocera 1155 Motorola Sidekick Slide
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Phone Samsung SGH-X640 HTC Desire 555 ZTE Blade Z Max Kyocera 1155 Motorola Sidekick Slide

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