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Phone Samsung Captivate Glide Samsung SCH-A990 Essential Phone Samsung Knack U310
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
? 5.7" diag.
17.5 : 9
2.2" diag.
4 : 3
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
AMOLED
240 x 320 pixels
LCD (TFT/TFD)
1312 x 2560 pixels
(~504 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ?
Battery 1,650 mAh 1,000 mAh 3,040 mAh 1,000 mAh
Processor 1 GHz Nvidia Tegra 2 AP20H ? 2.5 GHz Qualcomm Snapdragon 835 (MSM8998) ?
RAM 1 GB ? 4 GB ?
Storage 8 GB ? raw hardware 128 GB ? raw hardware
Main Camera 8 megapixel 3 megapixel 13 megapixel -
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD ? 4K UHD -
Front Camera 1 megapixel - 8 megapixel -
Weight 5.2 oz
(147g)
4.4 oz
(125g)
6.53 oz
(185g)
3.63 oz
(103g)
Dimensions 4.88" x 2.55" x 0.51"
(124 x 65 x 13 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
5.57" x 2.8" x 0.31"
(141 x 71 x 7.8 mm)
3.78" x 2.01" x 0.74"
(96 x 51 x 18.8 mm)
Form Factor Slide Clamshell Slab Clamshell
Platform / OS Android (proprietary) Android (proprietary)
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 29, 30, 40, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology HSPA+ 21 EVDO r0 LTE (Cat 12) -
Features 
Barometer - - Yes -
Fingerprint Reader - - Yes
stand-alone
-
Flashlight - Yes Yes -
GPS / Location n/a Yes n/a Yes
Accessibility
Adjustable Text Size n/a - n/a Yes
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Multiple Languages n/a Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display - Yes - Yes
Connectivity
Bluetooth Yes Yes Yes -
Mobile Hotspot n/a - n/a -
NFC - - Yes -
USB Yes
Micro-USB
Yes Yes
USB Type C
-
Wi-Fi Yes - Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID n/a Yes n/a -
Ringer ID n/a Yes n/a -
Voice Dialing n/a Yes n/a Yes
Customization
Custom Graphics n/a Yes n/a -
Custom Ringtones n/a Yes n/a -
Real-Music Ringers n/a Yes n/a -
Data & Network
Data Tethering n/a Yes n/a -
WAP / Web Browser n/a Yes n/a -
Input
Predictive Text Entry n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - -
Touch Screen Yes
Capacitive
- Yes
Capacitive
-
Memory
Memory Card Slot 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 n/a -
Text Messaging Templates n/a Yes n/a -
Music
Headphone Jack (3.5mm) Yes - - -
Music Player n/a Yes n/a -
Stereo Speakers - Yes - -
Photo & Video
DLNA Yes - - -
TV Output Yes Yes - -
Power
Fast Charging - - Yes -
Productivity
Alarm n/a Yes n/a Yes
Calculator n/a Yes n/a Yes
Calendar n/a Yes n/a Yes
Voice Memo n/a Yes n/a -
Software
BREW n/a Yes n/a -
Games n/a Yes n/a -
Voice
Headset Jack (2.5 mm) n/a - n/a Yes
Speaker Phone Yes Yes Yes Yes
  Samsung Captivate Glide Samsung SCH-A990 Essential Phone Samsung Knack U310
  X > < X > < X > < X

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Phone Samsung Captivate Glide Samsung SCH-A990 Essential Phone Samsung Knack U310

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