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Phone Samsung SPH-Z400 Palm Pre Plus (CDMA) Samsung Galaxy A51 (4G) Motorola T720 (CDMA) Samsung SCH-U430
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 1.9" diag.
4 : 3
3.1" diag.
5 : 3
6.5" diag.
20 : 9
? ?
Display Resolution & Type 176 x 220 pixels
(~150 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~405 ppi)
AMOLED
120 x 160 pixels
LCD (STN)
128 x 160 pixels
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz ? ?
Battery 1,300 mAh ? 4,000 mAh ? 1,000 mAh
Processor ? TI OMAP 3430 2.3 GHz Samsung Exynos 9611 ? ?
RAM ? ? 4 GB ? ?
Storage ? raw hardware ? raw hardware 128 GB ? raw hardware ? raw hardware
Main Camera 1 megapixel 3 megapixel 48 megapixel - Yes
Wide Camera - - 12 megapixel - -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) ? 4K UHD - -
Front Camera - - 32 megapixel - -
Weight 4.06 oz
(115g)
4.89 oz
(139g)
6.07 oz
(172g)
3.95 oz
(112g)
3.21 oz
(91g)
Dimensions 3.73" x 1.91" x 1"
(95 x 49 x 25.4 mm)
3.9" x 2.3" x 0.67"
(99 x 58 x 17 mm)
6.24" x 2.89" x 0.31"
(158 x 73 x 7.9 mm)
3.5" x 1.87" x 0.91"
(89 x 47 x 23.1 mm)
3.67" x 1.85" x 0.78"
(93 x 47 x 19.8 mm)
Form Factor Clamshell Slide Slab Clamshell Clamshell
Platform / OS (proprietary) webOS Android (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 13, 14, 20, 25, 26, 28, 30, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

Data Technology EVDO rA EVDO rA LTE (Cat 12) 1xRTT 1xRTT
Features 
Fingerprint Reader - - Yes
in-display (optical)
- -
Flashlight - - Yes - -
GPS / Location Yes n/a n/a Yes Yes
Ruggedized Yes - - - -
Accessibility
Adjustable Text Size Yes n/a n/a - Yes
Hearing Aid Compatible Yes
M4 (very compatible)
Yes
M4 (very compatible)
Yes
M3, T3 (mostly tele-coil compatible)
- Yes
M4, T4 (very tele-coil compatible)
Multiple Languages Yes n/a n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display Yes - - Yes Yes
Connectivity
Bluetooth Yes Yes Yes - Yes
MirrorLink - - Yes - -
Mobile Hotspot - n/a n/a - -
NFC - - Yes - -
USB Yes Yes
Micro-USB
Yes
USB Type C
Yes -
Wi-Fi - Yes
802.11 b,g
Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID Yes n/a n/a - Yes
Ringer ID Yes n/a n/a Yes Yes
Voice Dialing Yes n/a n/a Yes Yes
Customization
Changeable Body Plates - - - Yes -
Custom Graphics Yes n/a n/a Yes Yes
Custom Ringtones Yes n/a n/a Yes Yes
Real-Music Ringers Yes n/a n/a - -
Data & Network
Data Tethering Yes n/a n/a Yes -
WAP / Web Browser Yes n/a n/a Yes Yes
Input
Predictive Text Entry Yes n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - -
Touch Screen - Yes
Capacitive
Yes
Capacitive
- -
Memory
Memory Card Slot - - Yes - -
Messaging
Email Client Yes n/a n/a Yes Yes
EMS / Picture Messaging - n/a n/a Yes Yes
Instant Messaging - n/a n/a - Yes
MMS - n/a n/a - Yes
Text Messaging Templates Yes n/a n/a Yes Yes
Music
Headphone Jack (3.5mm) - Yes Yes - -
Music Player - n/a n/a - -
Stereo Speakers Yes - - - -
Power
Fast Charging - - Yes - -
Wireless Charging - Yes - - -
Productivity
Alarm Yes n/a n/a - Yes
Calculator Yes n/a n/a Yes Yes
Calendar Yes n/a n/a Yes Yes
To-Do List - n/a n/a - -
Voice Memo Yes n/a n/a Yes Yes
Software
BREW - n/a n/a Yes * Yes
Games Yes n/a n/a Yes Yes
Java (J2ME) Yes n/a n/a - -
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes n/a n/a Yes Yes
Push-To-Talk Yes - - - -
Speaker Phone Yes Yes Yes - Yes
  * Some versions only
  Samsung SPH-Z400 Palm Pre Plus (CDMA) Samsung Galaxy A51 (4G) Motorola T720 (CDMA) Samsung SCH-U430
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SPH-Z400 Palm Pre Plus (CDMA) Samsung Galaxy A51 (4G) Motorola T720 (CDMA) Samsung SCH-U430

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