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Phone Samsung Galaxy Ring / Prevail 2 Samsung SCH-A990 Samsung Glyde U940 AT&T Vista Motorola C332 / C331g / C333 (GSM)
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
? 2.8" diag.
16.5 : 9
5.5" diag.
18 : 9
?
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
96 x 64 pixels
LCD (Grayscale)
Display Refresh 60 Hz ? ? 60 Hz ?
Battery 1,750 mAh 1,000 mAh 1,000 mAh 2,450 mAh ?
Processor 1.4 GHz Qualcomm Snapdragon S2 MSM8655 ? ? 2 GHz MediaTek Helio A22 (MT6761V) ?
RAM 1 GB ? ? 3 GB ?
Storage 4 GB ? raw hardware ? raw hardware 32 GB ? raw hardware
Main Camera 5 megapixel 3 megapixel 2 megapixel 8 megapixel -
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD ? QVGA (320 x 240) 1080p HD -
Front Camera 1 megapixel - - 5 megapixel -
Weight 3.4 oz
(96g)
4.4 oz
(125g)
4.2 oz
(119g)
5.51 oz
(156g)
2.82 oz
(80g)
Dimensions 4.83" x 2.48" x 0.47"
(123 x 63 x 11.9 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
5.88" x 2.82" x 0.35"
(149 x 72 x 8.9 mm)
4.21" x 1.81" x 0.86"
(107 x 46 x 21.8 mm)
Form Factor Slab Clamshell Slide Slab Slab
Platform / OS Android (proprietary) (proprietary) Android (proprietary)
Network Bands

CDMA: 800, 850, 1900

CDMA: 850, 1900

CDMA: 850, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 1900

Data Technology EVDO rA EVDO r0 EVDO r0 LTE (Cat 4) GPRS
Features 
Flashlight - Yes - Yes -
GPS / Location n/a Yes Yes n/a -
Accessibility
Adjustable Text Size n/a - - n/a -
Hearing Aid Compatible Yes
M4 (very compatible)
Yes
M3 (mostly compatible)
Yes
M4 (very compatible)
Yes
M4, T4 (very tele-coil compatible)
-
Multiple Languages n/a Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes - -
Alerts
Extra Display - Yes - - -
Ringer Profiles - - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes -
USB Yes Yes Yes Yes
USB Type C
Yes
Mini-USB
Wi-Fi Yes
4 (802.11 a,b,g,n)
- - Yes -
Contacts
Picture ID n/a Yes Yes n/a Yes
Ringer ID n/a Yes Yes n/a Yes
Voice Dialing n/a Yes Yes n/a Yes
Customization
Changeable Body Plates - - - - Yes
Custom Graphics n/a Yes Yes n/a Yes
Custom Ringtones n/a Yes Yes n/a Yes
Real-Music Ringers n/a Yes Yes n/a -
Data & Network
Data Tethering n/a Yes Yes n/a Yes
WAP / Web Browser n/a Yes Yes n/a Yes
Input
Predictive Text Entry n/a Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes -
Text Keyboard, Hardware - - Yes - -
Touch Screen Yes
Capacitive
- Yes Yes
Capacitive
-
Memory
Memory Card Slot Yes Yes Yes Yes -
Messaging
Email Client n/a - - n/a -
EMS / Picture Messaging n/a Yes - n/a Yes
Instant Messaging n/a - - n/a -
MMS n/a Yes Yes n/a -
Text Messaging Templates n/a Yes Yes n/a Yes
Music
Headphone Jack (3.5mm) Yes - - Yes -
Music Player n/a Yes Yes n/a -
Stereo Speakers - Yes - - -
Photo & Video
DLNA Yes - - - -
TV Output - Yes - - -
Productivity
Alarm n/a Yes Yes n/a Yes
Calculator n/a Yes Yes n/a Yes
Calendar n/a Yes Yes n/a Yes
Voice Memo n/a Yes - n/a -
Software
BREW n/a Yes Yes n/a -
Games n/a Yes Yes n/a Yes
Voice
HD Voice - - - Yes -
Headset Jack (2.5 mm) n/a - Yes n/a Yes
Speaker Phone Yes Yes Yes Yes -
  Samsung Galaxy Ring / Prevail 2 Samsung SCH-A990 Samsung Glyde U940 AT&T Vista Motorola C332 / C331g / C333 (GSM)
  X > < X > < X > < X > < X

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

 
Phone Samsung Galaxy Ring / Prevail 2 Samsung SCH-A990 Samsung Glyde U940 AT&T Vista Motorola C332 / C331g / C333 (GSM)

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