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Phone Palm Treo 680 Palm Pre Plus (GSM) Samsung M520 TCL 20 XE Motorola A845
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 3.1" diag.
5 : 3
2.1" diag.
4 : 3
6.5" diag.
20 : 9
?
Display Resolution & Type 320 x 320 pixels
LCD (TFT/TFD)
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
720 x 1600 pixels
(~269 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? ? ? 60 Hz ?
Battery ? 1,150 mAh ? 5,000 mAh ?
Processor ? ? ? 2 GHz MediaTek Helio P22 (MT6762) ?
RAM ? ? ? 3 GB ?
Storage ? raw hardware ? raw hardware ? raw hardware 32 GB ? raw hardware
Main Camera Yes 3 megapixel 1 megapixel 13 megapixel Yes
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture CIF (352 x 288) VGA (640 x 480) ? 1080p HD ?
Front Camera - - - 5 megapixel Yes
Weight 5.5 oz
(156g)
4.89 oz
(139g)
2.75 oz
(78g)
6.88 oz
(195g)
5.47 oz
(155g)
Dimensions 4.4" x 2.3" x 0.8"
(112 x 58 x 20.3 mm)
3.9" x 2.3" x 0.67"
(99 x 58 x 17 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
6.48" x 2.95" x 0.35"
(165 x 75 x 8.9 mm)
5.4" x 2.2" x 1"
(137 x 56 x 25.4 mm)
Form Factor Slab Slide Slide Slab Slab
Platform / OS Palm OS webOS (proprietary) Android (proprietary)
Network Bands

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 2, 4, 5, 7, 12, 25, 26, 41, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2

GSM: 850, 1800, 1900

Data Technology EDGE HSDPA 1.8 EVDO r0 LTE (Cat 6) WCDMA (UMTS)
Features 
Barometer - - - Yes -
Fingerprint Reader - - - Yes
stand-alone
-
Flashlight - - - Yes -
GPS / Location n/a n/a Yes n/a Yes
Accessibility
Hearing Aid Compatible - - Yes Yes -
Multiple Languages n/a n/a Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Ringer Profiles - - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
Infrared (IR) Yes - - - Yes
USB Yes Yes
Micro-USB
Yes Yes
USB Type C
Yes
Wi-Fi - Yes
802.11 b,g
- Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID n/a n/a Yes n/a Yes
Ringer ID n/a n/a Yes n/a Yes
Voice Dialing n/a n/a Yes n/a Yes
Customization
Custom Graphics n/a n/a Yes n/a Yes
Custom Ringtones n/a n/a Yes n/a Yes
Real-Music Ringers n/a n/a - n/a Yes
Data & Network
Data Tethering n/a n/a Yes n/a Yes
External Antenna Jack n/a n/a - n/a -
WAP / Web Browser n/a n/a Yes n/a Yes
Input
Predictive Text Entry n/a n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes Yes - - -
Touch Screen Yes Yes - Yes -
Memory
Memory Card Slot Yes - Yes Yes -
Messaging
Email Client n/a n/a - n/a Yes
EMS / Picture Messaging n/a n/a - n/a Yes
Instant Messaging n/a n/a - n/a Yes
MMS n/a n/a - n/a Yes
Text Messaging Templates n/a n/a Yes n/a -
Music
Headphone Jack (3.5mm) - Yes - Yes -
Music Player n/a n/a Yes n/a Yes
Power
Fast Charging - - - Yes -
Productivity
Alarm n/a n/a Yes n/a Yes
Calculator n/a n/a Yes n/a Yes
Calendar n/a n/a Yes n/a Yes
To-Do List n/a n/a Yes n/a -
Voice Memo n/a n/a Yes n/a Yes
Software
Games n/a n/a Yes n/a Yes
Java (J2ME) n/a n/a Yes n/a Yes
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) n/a n/a - n/a Yes
Speaker Phone Yes Yes Yes Yes Yes
  Palm Treo 680 Palm Pre Plus (GSM) Samsung M520 TCL 20 XE Motorola A845
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Palm Treo 680 Palm Pre Plus (GSM) Samsung M520 TCL 20 XE Motorola A845

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