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Phone Pantech Duo C810 HTC Amaze 4G Samsung Galaxy Z Fold2 Audiovox CDM-8900 Samsung SCH-A990
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
4.3" diag.
16 : 9
7.6" diag.
4 : 3
? ?
Display Resolution & Type 240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~256 ppi)
LCD (TFT/TFD)
1768 x 2208 pixels
(~372 ppi)
AMOLED
128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? ?
Battery 1,320 mAh 1,730 mAh 4,500 mAh 1,000 mAh 1,000 mAh
Processor ARM 920t PXA27x 1.5 GHz Qualcomm Snapdragon S3 dual-core 3.1 GHz Qualcomm Snapdragon 865+ ? ?
RAM ? 1 GB 12 GB ? ?
Storage ? raw hardware 16 GB 256 GB ? raw hardware ? raw hardware
Main Camera 1 megapixel 8 megapixel 12 megapixel Yes 3 megapixel
Wide Camera - - 12 megapixel - -
Tele Camera - - 12 megapixel - -
Video Capture QVGA (320 x 240) 1080p HD 4K UHD - ?
Front Camera - 2 megapixel 10 megapixel - -
Weight 3.88 oz
(110g)
6.1 oz
(173g)
9.95 oz
(282g)
3.28 oz
(93g)
4.4 oz
(125g)
Dimensions 4.01" x 1.97" x 0.78"
(102 x 50 x 19.8 mm)
5.12" x 2.58" x 0.46"
(130 x 66 x 11.7 mm)
6.27" x 2.68" x 0.66"
(159 x 68 x 16.8 mm)
3.41" x 1.77" x 0.75"
(87 x 45 x 19.1 mm)
3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
Form Factor Slide Slab Foldable Clamshell Clamshell
Platform / OS Windows Mobile Standard Android Android (proprietary) (proprietary)
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

5G: 2, 5, 25, 41, 66, 71, 260, 261

4G LTE: 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

CDMA: 850, 1900

Data Technology HSDPA 1.8 HSPA+ 42 NR (5G) 1xRTT EVDO r0
Features 
Barometer - - Yes - -
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight - Yes Yes - Yes
GPS / Location n/a n/a n/a Yes Yes
Accessibility
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
- Yes
M3 (mostly compatible)
Multiple Languages n/a n/a n/a Yes Yes
TTY/TDD (Digital) - Yes Yes - Yes
Alerts
Extra Display - - Yes Yes Yes
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes Yes Yes - Yes
Mobile Hotspot n/a n/a n/a - -
NFC - Yes Yes - -
USB Yes Yes Yes
USB Type C
Yes Yes
UWB - - Yes - -
Wi-Fi - Yes
4 (802.11 a,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
- -
Contacts
Picture ID n/a n/a n/a Yes Yes
Ringer ID n/a n/a n/a Yes Yes
Voice Dialing n/a n/a n/a Yes Yes
Customization
Custom Graphics n/a n/a n/a Yes Yes
Custom Ringtones n/a n/a n/a Yes Yes
Real-Music Ringers n/a n/a n/a - Yes
Data & Network
Data Tethering n/a n/a n/a Yes Yes
WAP / Web Browser n/a n/a n/a Yes Yes
Input
Predictive Text Entry n/a n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen - Yes
Capacitive
Yes
Capacitive
- -
Memory
Memory Card Slot Yes Yes - - Yes
Messaging
Email Client n/a n/a n/a - -
EMS / Picture Messaging n/a n/a n/a Yes Yes
Instant Messaging n/a n/a n/a - -
MMS n/a n/a n/a - Yes
Text Messaging Templates n/a n/a n/a Yes Yes
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) - Yes - - -
Music Player n/a n/a n/a - Yes
Stereo Speakers - - Yes - Yes
Photo & Video
DLNA - Yes - - -
TV Output - Yes Yes - Yes
Power
Fast Charging - - Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm n/a n/a n/a Yes Yes
Calculator n/a n/a n/a Yes Yes
Calendar n/a n/a n/a Yes Yes
To-Do List n/a n/a n/a - -
Voice Memo n/a n/a n/a Yes Yes
Software
BREW n/a n/a n/a Yes * Yes
Games n/a n/a n/a Yes Yes
Java (J2ME) n/a n/a n/a Yes * -
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) n/a n/a n/a Yes -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Pantech Duo C810 HTC Amaze 4G Samsung Galaxy Z Fold2 Audiovox CDM-8900 Samsung SCH-A990
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Pantech Duo C810 HTC Amaze 4G Samsung Galaxy Z Fold2 Audiovox CDM-8900 Samsung SCH-A990

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