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Phone TCL 20 Pro 5G Casio G'zOne Rock HTC Windows Phone 8S Alcatel 665
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 6.7" diag.
20 : 9
2.1" diag.
4 : 3
4" diag.
5 : 3
1.8" diag.
4 : 3
Display Resolution & Type 1080 x 2400 pixels
(~395 ppi)
AMOLED
240 x 320 pixels
(~190 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz ? ? ?
Battery 4,500 mAh 1,150 mAh 1,700 mAh 650 mAh
Processor 2 GHz Qualcomm Snapdragon 750G ? 1 GHz Qualcomm Snapdragon S4 ?
RAM 6 GB ? 512 MB 16 MB
Storage 256 GB ? raw hardware 4 GB 32 MB
Main Camera 48 megapixel 2 megapixel 5 megapixel 2 megapixel
Wide Camera 16 megapixel - - -
Tele Camera - - - -
Video Capture 4K UHD ? 720p HD QCIF (176 x 144)
Front Camera 32 megapixel - - -
Weight 6.82 oz
(193g)
4.4 oz
(125g)
3.99 oz
(113g)
2.72 oz
(77g)
Dimensions 6.46" x 2.87" x 0.36"
(164 x 73 x 9.1 mm)
4.1" x 2" x 0.9"
(104 x 51 x 22.9 mm)
4.74" x 2.48" x 0.4"
(121 x 63 x 10.3 mm)
3.78" x 1.89" x 0.66"
(96 x 48 x 16.8 mm)
Form Factor Slab Clamshell Slab Clamshell
Platform / OS Android (proprietary) Windows (proprietary)
Network Bands

5G: 2, 5, 7, 41, 66, 71, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 40, 41, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

GSM: 850, 1900

Data Technology NR (5G) EVDO rA HSPA+ 21 -
Features 
Barometer Yes - - -
Fingerprint Reader Yes
in-display (optical)
- - -
Flashlight Yes Yes Yes -
GPS / Location n/a Yes n/a -
Ruggedized - Yes - -
Water-Resistant Yes
IPX2 (drip)
Yes - -
Accessibility
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4 (very compatible)
Multiple Languages n/a Yes n/a Yes
TTY/TDD (Digital) Yes Yes Yes -
Alerts
Extra Display - Yes - Yes
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Infrared (IR) Yes - - -
NFC Yes - - -
USB Yes
USB Type C
Yes Yes Yes
Micro-USB
Wi-Fi 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
Ringer ID n/a Yes n/a Yes
Voice Dialing n/a Yes n/a -
Customization
Custom Graphics n/a Yes n/a Yes
Custom Ringtones n/a Yes n/a Yes
Real-Music Ringers n/a Yes n/a Yes
Data & Network
Data Tethering n/a Yes n/a -
WAP / Web Browser n/a Yes n/a Yes
Input
Predictive Text Entry n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen Yes
Capacitive
- Yes
Capacitive
-
Memory
Memory Card Slot Yes Yes Yes Yes
Messaging
Email Client n/a Yes n/a -
Instant Messaging n/a Yes n/a Yes
MMS n/a Yes n/a Yes
Text Messaging Templates n/a Yes n/a Yes
Music
FM Radio Yes - - Yes
Headphone Jack (3.5mm) Yes - Yes Yes
Music Player n/a Yes n/a Yes
Power
Fast Charging Yes - - -
Wireless Charging Yes - - -
Productivity
Alarm n/a Yes n/a Yes
Calculator n/a Yes n/a Yes
Calendar n/a Yes n/a Yes
Voice Memo n/a Yes n/a Yes
Software
BREW n/a Yes n/a -
Games n/a Yes n/a Yes
Java (J2ME) n/a - n/a Yes
Voice
HD Voice Yes - - -
Headset Jack (2.5 mm) n/a Yes n/a -
Push-To-Talk - Yes - -
Speaker Phone Yes Yes Yes Yes
  TCL 20 Pro 5G Casio G'zOne Rock HTC Windows Phone 8S Alcatel 665
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone TCL 20 Pro 5G Casio G'zOne Rock HTC Windows Phone 8S Alcatel 665

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