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Phone LG K20 / Harmony / Grace Siemens SX66 / MDA III / PDA2K (HTC Blue Angel) Cricket Debut S2 / AT&T Calypso 4 BlackBerry Curve 9350 Nokia Lumia 900
Current U.S. Carriers (none) (none) AT&T (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 5.3" diag.
16 : 9
? 6.1" diag.
19.5 : 9
2.4" diag.
4 : 3
4.3" diag.
5 : 3
Display Resolution & Type 720 x 1280 pixels
(~277 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
480 x 360 pixels
(~246 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~217 ppi)
AMOLED
Display Refresh 60 Hz ? 60 Hz ? ?
Battery 2,800 mAh 1,490 mAh 3,000 mAh 1,040 mAh 1,830 mAh
Processor 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) 400 MHz Intel XScale 2 GHz MediaTek Helio A22 (MT6761WB) 800 MHz Marvell 1.4 GHz Qualcomm S2 APQ8055
RAM 1.5 GB ? 3 GB ? 512 MB
Storage 16 GB ? raw hardware 64 GB ? raw hardware 16 GB
Main Camera 8 megapixel Yes 8 megapixel 5 megapixel 8 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD QCIF (176 x 144) ? VGA (640 x 480) 720p HD
Front Camera 5 megapixel - 5 megapixel - 1 megapixel
Weight 5 oz
(142g)
7.41 oz
(210g)
5.64 oz
(160g)
3.49 oz
(99g)
5.6 oz
(159g)
Dimensions 5.9" x 3" x 0.3"
(150 x 76 x 7.6 mm)
4.92" x 2.83" x 0.75"
(125 x 72 x 19.1 mm)
6.11" x 2.87" x 0.34"
(155 x 73 x 8.6 mm)
4.29" x 2.36" x 0.43"
(109 x 60 x 10.9 mm)
5.03" x 2.7" x 0.45"
(128 x 69 x 11.4 mm)
Platform / OS Android Windows Mobile Professional Android BlackBerry OS Windows
Network Bands

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

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

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

*

4G LTE: 4, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

*

Data Technology LTE (Cat 4) GPRS LTE (Cat 4) EVDO rA LTE (Cat 3)
Features 
Flashlight Yes - Yes - -
Accessibility
Hearing Aid Compatible Yes - Yes Yes Yes
TTY/TDD (Digital) Yes - - Yes Yes
Alerts
Ringer Profiles - - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Yes
Classic Audio
Yes
Classic Audio
Yes
Infrared (IR) - Yes - - -
NFC Yes * - - Yes -
USB Yes
Micro-USB
Yes Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi Yes
4 (802.11 b,g,n)
Yes Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Yes
Input
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - Yes -
Touch Screen Yes Yes Yes - Yes
Memory
Memory Card Slot Yes Yes Yes Yes -
Music
FM Radio Yes - - - Yes
Headphone Jack (3.5mm) Yes - Yes Yes Yes
Power
Fast Charging - - Yes - -
Voice
HD Voice Yes - Yes - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  LG K20 / Harmony / Grace Siemens SX66 / MDA III / PDA2K (HTC Blue Angel) Cricket Debut S2 / AT&T Calypso 4 BlackBerry Curve 9350 Nokia Lumia 900
  X > < X > < X > < X > < X

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

 
Phone LG K20 / Harmony / Grace Siemens SX66 / MDA III / PDA2K (HTC Blue Angel) Cricket Debut S2 / AT&T Calypso 4 BlackBerry Curve 9350 Nokia Lumia 900

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