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Phone Apple iPhone 4 (GSM) Samsung Knack U310 Motorola Moto X4 Motorola v120x LG eXpo GW820
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
2.2" diag.
4 : 3
5.2" diag.
16 : 9
? 3.2" diag.
5 : 3
Display Resolution & Type 640 x 960 pixels
(~330 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
? 480 x 800 pixels
(~292 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ? ?
Battery ? 1,000 mAh 3,000 mAh ? 1,500 mAh
Processor Apple A4 ? 2.2 GHz Qualcomm Snapdragon 630 ? ?
RAM ? ? 3 GB ? ?
Storage 32 GB * ? raw hardware 32 GB ? raw hardware ? raw hardware
Main Camera 5 megapixel - 12 megapixel - 5 megapixel
Wide Camera - - 8 megapixel - -
Tele Camera - - - - -
Video Capture 720p HD - 4K UHD - ?
Front Camera Yes - 16 megapixel - -
Weight 4.8 oz
(136g)
3.63 oz
(103g)
5.75 oz
(163g)
4.5 oz
(128g)
5.2 oz
(147g)
Dimensions 4.5" x 2.31" x 0.37"
(114 x 59 x 9.4 mm)
3.78" x 2.01" x 0.74"
(96 x 51 x 18.8 mm)
5.84" x 2.89" x 0.31"
(148 x 73 x 8 mm)
5" x 1.7" x 1.1"
(127 x 43 x 27.9 mm)
4.45" x 2.16" x 0.63"
(113 x 55 x 16 mm)
Form Factor Slab Clamshell Slab Slab Slab
Platform / OS iOS (proprietary) Android (proprietary) Windows Mobile Professional
Network Bands

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

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

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

Data Technology HSPA 7.2 - LTE (Cat 11) - HSPA 7.2
Features 
Fingerprint Reader - - Yes
stand-alone
- Yes
Flashlight - - Yes - -
GPS / Location n/a Yes n/a - n/a
Water-Resistant - - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size n/a Yes n/a - n/a
Hearing Aid Compatible Yes Yes Yes - -
Multiple Languages n/a Yes n/a Yes n/a
TTY/TDD (Digital) Yes Yes Yes - Yes
Alerts
Extra Display - Yes - - -
Ringer Profiles - - - Yes Yes
Connectivity
Bluetooth Yes - Yes - Yes
Mobile Hotspot n/a - n/a - n/a
NFC - - Yes - -
USB Yes - Yes
USB Type C
- Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
- Yes
802.11 b,g
Contacts
Picture ID n/a - n/a - n/a
Ringer ID n/a - n/a - n/a
Voice Dialing n/a Yes n/a Yes n/a
Customization
Custom Graphics n/a - n/a - n/a
Custom Ringtones n/a - n/a Yes n/a
Real-Music Ringers n/a - n/a - n/a
Data & Network
Data Tethering n/a - n/a Yes n/a
WAP / Web Browser n/a - n/a Yes n/a
Input
Predictive Text Entry n/a Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - - Yes
Touch Screen Yes - Yes - Yes
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client n/a - n/a - n/a
EMS / Picture Messaging n/a Yes n/a - n/a
Instant Messaging n/a - n/a - n/a
MMS n/a - n/a - n/a
Text Messaging Templates n/a - n/a Yes n/a
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) Yes - Yes - -
Music Player n/a - n/a - n/a
Photo & Video
TV Output Yes - - - Yes
Power
Fast Charging - - Yes - -
Productivity
Alarm n/a Yes n/a Yes n/a
Calculator n/a Yes n/a - n/a
Calendar n/a Yes n/a Yes n/a
Voice Memo n/a - n/a Yes n/a
Software
Games n/a - n/a Yes n/a
Java (J2ME) n/a - n/a - n/a
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) n/a Yes n/a Yes n/a
Speaker Phone Yes Yes Yes - Yes
  * Some versions only
  Apple iPhone 4 (GSM) Samsung Knack U310 Motorola Moto X4 Motorola v120x LG eXpo GW820
  X > < X > < X > < X > < X

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

 
Phone Apple iPhone 4 (GSM) Samsung Knack U310 Motorola Moto X4 Motorola v120x LG eXpo GW820

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