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Phone Palm Treo 600 (CDMA) Motorola ROKR E2 Samsung Galaxy S6 (CDMA) Kyocera Hydro Life ZTE Z221
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? ? 5.1" diag.
16 : 9
4.5" diag.
16 : 9
2" diag.
4 : 3
Display Resolution & Type 160 x 160 pixels
LCD (Color)
240 x 320 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz ?
Battery ? ? 2,550 mAh 2,000 mAh 900 mAh
Processor ? ? 2.1 GHz Samsung Exynos 1.2 GHz Qualcomm Snapdragon MSM8212 ?
RAM ? ? 3 GB 1.5 GB ?
Storage ? raw hardware ? raw hardware 32 GB * 8 GB 142 MB
Main Camera Yes 1 megapixel 16 megapixel 5 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - ? 4K UHD 720p HD QCIF (176 x 144)
Front Camera - - 5 megapixel 2 megapixel -
Weight 6.2 oz
(176g)
3.77 oz
(107g)
4.87 oz
(138g)
4.8 oz
(136g)
3.24 oz
(92g)
Dimensions 4.41" x 2.36" x 0.87"
(112 x 60 x 22.1 mm)
4.17" x 1.95" x 0.71"
(106 x 50 x 18 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
5.19" x 2.57" x 0.43"
(132 x 65 x 10.9 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
Form Factor Slab Slab Slab Slab Clamshell
Platform / OS Palm OS (proprietary) Android Android (proprietary)
Network Bands

CDMA: 850, 1900

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

Data Technology 1xRTT EDGE LTE (Cat 4) HSPA+ 21 HSDPA 3.6
Features 
Fingerprint Reader - - Yes - -
Flashlight - - Yes Yes -
GPS / Location n/a - n/a n/a Yes
Ruggedized - - - Yes -
VR-ready - - Yes - -
Water-Resistant - - - Yes
IPX7 (snorkeling)
-
Accessibility
Adjustable Text Size n/a - n/a n/a -
Hearing Aid Compatible - - Yes Yes Yes
Multiple Languages n/a Yes n/a n/a Yes
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display - - - - Yes
Ringer Profiles - Yes - - Yes
Connectivity
Bluetooth - Yes Yes Yes Yes
Infrared (IR) Yes - Yes - -
MirrorLink - - Yes - -
Mobile Hotspot n/a - n/a n/a -
NFC - - Yes - -
USB Yes Yes Yes
Micro-USB
Yes
Micro-USB
Yes
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID n/a Yes n/a n/a -
Ringer ID n/a Yes n/a n/a -
Voice Dialing n/a Yes n/a n/a -
Customization
Custom Graphics n/a Yes n/a n/a Yes
Custom Ringtones n/a Yes n/a n/a Yes
Real-Music Ringers n/a - n/a n/a Yes
Data & Network
Data Tethering n/a Yes n/a n/a -
WAP / Web Browser n/a Yes n/a n/a Yes
Input
Predictive Text Entry n/a Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen Yes - Yes Yes -
Memory
Memory Card Slot Yes Yes - Yes -
Messaging
Email Client n/a Yes n/a n/a Yes
Instant Messaging n/a - n/a n/a Yes
MMS n/a Yes n/a n/a Yes
Text Messaging Templates n/a Yes n/a n/a Yes
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) - Yes Yes Yes -
Music Player n/a Yes n/a n/a -
Photo & Video
DLNA - - Yes - -
Miracast - - Yes - -
TV Output - - Yes - -
Power
Wireless Charging - - Yes - -
Productivity
Alarm n/a Yes n/a n/a Yes
Calculator n/a Yes n/a n/a Yes
Calendar n/a Yes n/a n/a Yes
To-Do List n/a Yes n/a n/a -
Voice Memo n/a Yes n/a n/a Yes
Software
Games n/a Yes n/a n/a Yes
Java (J2ME) n/a Yes n/a n/a Yes
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) n/a - n/a n/a -
Speaker Phone Yes Yes Yes Yes Yes
  Palm Treo 600 (CDMA) Motorola ROKR E2 Samsung Galaxy S6 (CDMA) Kyocera Hydro Life ZTE Z221
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Palm Treo 600 (CDMA) Motorola ROKR E2 Samsung Galaxy S6 (CDMA) Kyocera Hydro Life ZTE Z221

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