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Phone Apple iPhone 4 (GSM) Sanyo Katana / SCP-6600 Cricket Debut S2 / AT&T Calypso 4 Samsung SCH-A530 LG K20 / Harmony / Grace
Current U.S. Carriers (none) (none) AT&T (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 3.5" diag.
5 : 3
? 6.1" diag.
19.5 : 9
? 5.3" diag.
16 : 9
Display Resolution & Type 640 x 960 pixels
(~330 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
720 x 1280 pixels
(~277 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? 60 Hz ? 60 Hz
Battery ? 820 mAh 3,000 mAh ? 2,800 mAh
Processor Apple A4 ? 2 GHz MediaTek Helio A22 (MT6761WB) ? 1.4 GHz Qualcomm Snapdragon 425 (MSM8917)
RAM ? ? 3 GB ? 1.5 GB
Storage 32 GB * ? raw hardware 64 GB ? raw hardware 16 GB
Main Camera 5 megapixel Yes 8 megapixel - 8 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 720p HD - ? - 1080p HD
Front Camera Yes - 5 megapixel - 5 megapixel
Weight 4.8 oz
(136g)
3.4 oz
(96g)
5.64 oz
(160g)
3 oz
(85g)
5 oz
(142g)
Dimensions 4.5" x 2.31" x 0.37"
(114 x 59 x 9.4 mm)
3.88" x 2.02" x 0.58"
(99 x 51 x 14.7 mm)
6.11" x 2.87" x 0.34"
(155 x 73 x 8.6 mm)
3.18" x 1.67" x 0.9"
(81 x 42 x 22.9 mm)
5.9" x 3" x 0.3"
(150 x 76 x 7.6 mm)
Form Factor Slab Clamshell Slab Clamshell Slab
Platform / OS iOS (proprietary) Android (proprietary) Android
Network Bands

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 2, 3, 4, 5, 7, 12, 14, 20, 30, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 850, 1900

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology HSPA 7.2 1xRTT LTE (Cat 4) 1xRTT LTE (Cat 4)
Features 
Flashlight - - Yes - Yes
GPS / Location n/a Yes n/a Yes n/a
Accessibility
Adjustable Text Size n/a - n/a - n/a
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
- Yes
M4, T4 (very tele-coil compatible)
- Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages n/a - n/a Yes n/a
TTY/TDD (Digital) Yes Yes - - Yes
Alerts
Extra Display - Yes - Yes -
Connectivity
Bluetooth Yes Yes Yes - Yes
Mobile Hotspot n/a - n/a - n/a
NFC - - - - Yes *
USB Yes 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
4 (802.11 b,g,n)
Contacts
Picture ID n/a Yes n/a Yes n/a
Ringer ID n/a Yes n/a Yes n/a
Voice Dialing n/a Yes n/a Yes n/a
Customization
Custom Graphics n/a Yes n/a Yes n/a
Custom Ringtones n/a Yes n/a Yes n/a
Real-Music Ringers n/a - n/a - n/a
Data & Network
Data Tethering n/a Yes n/a Yes n/a
WAP / Web Browser n/a Yes n/a Yes n/a
Input
Predictive Text Entry n/a Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes
Capacitive
- Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client n/a - n/a - n/a
MMS n/a - n/a - n/a
Music
FM Radio - - - - Yes
Headphone Jack (3.5mm) Yes - Yes - Yes
Music Player n/a - n/a - n/a
Photo & Video
TV Output Yes - - - -
Power
Fast Charging - - Yes - -
Productivity
Alarm n/a Yes n/a Yes n/a
Calculator n/a Yes n/a Yes n/a
Calendar n/a Yes n/a Yes n/a
To-Do List n/a - n/a Yes n/a
Voice Memo n/a Yes n/a Yes n/a
Software
BREW n/a - n/a Yes n/a
Games n/a Yes n/a Yes n/a
Java (J2ME) n/a Yes n/a - n/a
Voice
Call Screening - Yes - - -
HD Voice - - Yes - Yes
Headset Jack (2.5 mm) n/a - n/a Yes n/a
Speaker Phone Yes Yes Yes - Yes
  * Some versions only
  Apple iPhone 4 (GSM) Sanyo Katana / SCP-6600 Cricket Debut S2 / AT&T Calypso 4 Samsung SCH-A530 LG K20 / Harmony / Grace
  X > < X > < X > < X > < X

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

 
Phone Apple iPhone 4 (GSM) Sanyo Katana / SCP-6600 Cricket Debut S2 / AT&T Calypso 4 Samsung SCH-A530 LG K20 / Harmony / Grace

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