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Phone Samsung Galaxy Ring / Prevail 2 LG K40 / Harmony 3 Pantech Matrix Pro C820 HTC One (M7 / CDMA)
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 4" diag.
5 : 3
5.7" diag.
18 : 9
2.4" diag.
4 : 3
4.7" diag.
16 : 9
Display Resolution & Type 480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
720 x 1440 pixels
(~282 ppi)
LCD (TFT/TFD)
240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~469 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 60 Hz ? 60 Hz
Battery 1,750 mAh 3,000 mAh 1,320 mAh 2,300 mAh
Processor 1.4 GHz Qualcomm Snapdragon S2 MSM8655 1.8 GHz Qualcomm Snapdragon 450 528 MHz ARM 11 1.7 GHz Qualcomm Snapdragon 600
RAM 1 GB 2 GB ? 2 GB
Storage 4 GB 32 GB ? raw hardware 32 GB *
Main Camera 5 megapixel 13 megapixel 2 megapixel 4 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture 720p HD 1080p HD QCIF (176 x 144) 1080p HD
Front Camera 1 megapixel 5 megapixel - 2 megapixel
Weight 3.4 oz
(96g)
5.11 oz
(145g)
5.34 oz
(151g)
5.04 oz
(143g)
Dimensions 4.83" x 2.48" x 0.47"
(123 x 63 x 11.9 mm)
6.02" x 2.83" x 0.32"
(153 x 72 x 8.1 mm)
4.2" x 2" x 0.9"
(107 x 51 x 22.9 mm)
5.41" x 2.69" x 0.37"
(137 x 68 x 9.3 mm)
Platform / OS Android Android Windows Mobile Standard Android
Network Bands

CDMA: 800, 850, 1900

4G LTE: 2, 4, 5, 12, 13, 14, 25, 26, 29, 30, 41, 66, 71

WCDMA: 2, 4, 5

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 25

WCDMA: 1, 2

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

Data Technology EVDO rA LTE (Cat 6) HSDPA 3.6 LTE (Cat 3)
Features 
Fingerprint Reader - Yes
stand-alone
- -
Flashlight - Yes - Yes
Accessibility
Hearing Aid Compatible Yes Yes - Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Ringer Profiles - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) - - - Yes
NFC - Yes * - Yes
USB Yes Yes
Micro-USB
Yes Yes
Micro-USB
Wi-Fi Yes
4 (802.11 a,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Input
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - Yes -
Touch Screen Yes Yes - Yes
Memory
Memory Card Slot Yes Yes Yes -
Music
FM Radio - Yes - Yes
Headphone Jack (3.5mm) Yes Yes - Yes
Stereo Speakers - - - Yes
Photo & Video
DLNA Yes Yes - Yes
Miracast - - - Yes
TV Output - - - Yes
Voice
HD Voice - Yes - Yes
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung Galaxy Ring / Prevail 2 LG K40 / Harmony 3 Pantech Matrix Pro C820 HTC One (M7 / CDMA)
  X > < X > < X > < X

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

 
Phone Samsung Galaxy Ring / Prevail 2 LG K40 / Harmony 3 Pantech Matrix Pro C820 HTC One (M7 / CDMA)

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