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Phone HTC Touch Pro2 (CDMA) Motorola Backflip Motorola Droid Samsung Galaxy S7 edge Samsung Galaxy A21
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 3.6" diag.
5 : 3
3.1" diag.
5 : 3
3.7" diag.
16 : 9
5.5" diag.
16 : 9
6.5" diag.
20 : 9
Display Resolution & Type 480 x 800 pixels
(~259 ppi)
LCD (TFT/TFD)
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
480 x 854 pixels
(~268 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~534 ppi)
AMOLED
720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz 60 Hz 60 Hz
Battery 1,500 mAh 1,400 mAh 1,400 mAh 3,600 mAh 4,000 mAh
Processor 528 MHz MSM7600 528 MHz Qualcomm MSM7201a 550 MHz TI OMAP 3430 (ARM Cortex A8) 2.2 GHz Qualcomm Snapdragon 820 (MSM8996) 2 GHz MediaTek Helio P35 (MT6765)
RAM ? ? ? 4 GB 3 GB
Storage ? raw hardware ? raw hardware ? raw hardware 32 GB 32 GB
Main Camera 3 megapixel 5 megapixel 5 megapixel 12 megapixel 16 megapixel
Wide Camera - - - - 8 megapixel
Tele Camera - - - - -
Video Capture ? CIF (352 x 288) WVGA / 480p 4K UHD 1080p HD
Front Camera - - - 5 megapixel 13 megapixel
Weight 6.35 oz
(180g)
4.7 oz
(133g)
5.99 oz
(170g)
5.54 oz
(157g)
6.81 oz
(193g)
Dimensions 4.57" x 2.33" x 0.68"
(116 x 59 x 17.3 mm)
4.25" x 2.09" x 0.6"
(108 x 53 x 15.3 mm)
4.55" x 2.35" x 0.55"
(116 x 60 x 14 mm)
5.94" x 2.86" x 0.3"
(151 x 73 x 7.7 mm)
6.61" x 3.02" x 0.32"
(168 x 77 x 8.1 mm)
Platform / OS Windows Mobile Professional Android Android Android Android
Network Bands

WCDMA: 1

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 25, 26, 29, 30, 38, 39, 40, 41

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology EVDO rA HSPA 7.2 EVDO rA LTE (Cat 9) LTE (Cat 6)
Features 
Fingerprint Reader - - - Yes Yes
stand-alone
Flashlight - - - Yes Yes
VR-ready - - - Yes -
Water-Resistant - - - Yes
IPX8 (SCUBA)
-
Accessibility
Hearing Aid Compatible Yes
M4, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
TTY/TDD (Digital) Yes - Yes Yes Yes
Connectivity
Bluetooth Yes Yes Yes Yes Yes
MirrorLink - - - Yes -
NFC - - - Yes Yes
USB Yes Yes
Micro-USB
Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Wi-Fi Yes Yes
802.11 b,g
Yes
802.11 b,g
Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Data & Network
Dual-SIM - - - Yes -
Input
Side Keys Yes Yes Yes Yes Yes
Stylus Yes - - - -
Text Keyboard, Hardware Yes Yes Yes - -
Touch Screen Yes
Resistive
Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Music
Headphone Jack (3.5mm) Yes Yes Yes Yes Yes
Photo & Video
DLNA - - - Yes -
Miracast - - - Yes -
TV Output Yes - - - -
Power
Fast Charging - - - Yes Yes
Wireless Charging - - - Yes -
Voice
HD Voice - - - Yes Yes
Speaker Phone Yes Yes Yes Yes Yes
  HTC Touch Pro2 (CDMA) Motorola Backflip Motorola Droid Samsung Galaxy S7 edge Samsung Galaxy A21
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone HTC Touch Pro2 (CDMA) Motorola Backflip Motorola Droid Samsung Galaxy S7 edge Samsung Galaxy A21

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