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Phone Samsung SGH-X640 Asus ROG Phone II Samsung Galaxy S22 HTC G2 Motorola Rival A455
Current U.S. Carriers (none) (none) Verizon (none) (none)
Global Availability Released Not yet released Released Released Released
Specifications 
Display Size ? 6.6" diag.
19.5 : 9
6.1" diag.
19.5 : 9
3.7" diag.
5 : 3
2.2" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~391 ppi)
AMOLED
1080 x 2340 pixels
(~422 ppi)
AMOLED
480 x 800 pixels
(~252 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~131 ppi)
LCD (TFT/TFD)
Display Refresh ? 120 Hz 120 Hz 60 Hz ?
Battery 800 mAh 6,000 mAh 3,700 mAh 1,300 mAh 940 mAh
Processor ? 3 GHz Qualcomm Snapdragon 855 Plus Snapdragon 8 Gen 1 800 MHz Qualcomm S2 MSM7230 ?
RAM ? 12 GB 8 GB ? ?
Storage ? raw hardware 512 GB 128 GB * ? raw hardware ? raw hardware
Main Camera Yes 48 megapixel 50 megapixel 5 megapixel 2 megapixel
Wide Camera - 13 megapixel 12 megapixel - -
Tele Camera - - 10 megapixel - -
Video Capture - 4K UHD 8K 720p HD QVGA (320 x 240)
Front Camera - 24 megapixel 10 megapixel - -
Weight 3 oz
(85g)
8.47 oz
(240g)
5.93 oz
(168g)
6.5 oz
(184g)
4.48 oz
(127g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 mm)
5.75" x 2.78" x 0.3"
(146 x 71 x 7.6 mm)
4.68" x 2.37" x 0.55"
(119 x 60 x 14 mm)
3.82" x 1.96" x 0.73"
(97 x 50 x 18.5 mm)
Form Factor Clamshell Slab Slab Slab Slide
Platform / OS (proprietary) Android Android Android (proprietary)
Network Bands

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 66

WCDMA: 1, 2, 3, 4, 5, 8, 19

GSM: 850, 900, 1800, 1900

5G: 2, 5, 7, 12, 25, 30, 38, 41, 48, 66, 71, 77-A, 77-C, 78, 257, 258, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 14, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology GPRS LTE (Cat 20) NR (5G) HSPA 14.4 EVDO r0
Features 
Barometer - - Yes - -
Fingerprint Reader - Yes
in-display (optical)
Yes
in-display (ultrasonic)
- -
Flashlight - Yes Yes - -
GPS / Location - n/a n/a n/a Yes
Water-Resistant - - Yes
IPX8 (SCUBA)
- -
Accessibility
Hearing Aid Compatible - Yes Yes Yes Yes
Multiple Languages Yes n/a n/a n/a Yes
TTY/TDD (Digital) - - Yes - Yes
Connectivity
Bluetooth -
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - n/a n/a n/a -
NFC - Yes Yes - -
USB - Yes
USB Type C
Yes
USB Type C
Yes Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID Yes n/a n/a n/a Yes
Ringer ID Yes n/a n/a n/a Yes
Voice Dialing - n/a n/a n/a Yes
Customization
Custom Graphics Yes n/a n/a n/a Yes
Custom Ringtones Yes n/a n/a n/a Yes
Real-Music Ringers - n/a n/a n/a Yes
Data & Network
Data Tethering - n/a n/a n/a Yes
Dual-SIM - Yes - - -
WAP / Web Browser Yes n/a n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a n/a -
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes Yes
Touch Screen - Yes Yes Yes Yes
Memory
Memory Card Slot - - - Yes Yes
Messaging
Email Client - n/a n/a n/a Yes
EMS / Picture Messaging Yes n/a n/a n/a Yes
Instant Messaging - n/a n/a n/a Yes
MMS Yes n/a n/a n/a Yes
Text Messaging Templates Yes n/a n/a n/a Yes
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) - Yes - Yes Yes
Music Player - n/a n/a n/a Yes
Stereo Speakers - Yes Yes - -
Photo & Video
TV Output - Yes Yes - -
Power
Fast Charging - Yes Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm Yes n/a n/a n/a Yes
Calculator Yes n/a n/a n/a Yes
Calendar Yes n/a n/a n/a Yes
To-Do List Yes n/a n/a n/a -
Voice Memo Yes n/a n/a n/a Yes
Software
BREW - n/a n/a n/a Yes
Games Yes n/a n/a n/a Yes
Java (J2ME) Yes n/a n/a n/a -
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes n/a n/a n/a -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 Asus ROG Phone II Samsung Galaxy S22 HTC G2 Motorola Rival A455
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Asus ROG Phone II Samsung Galaxy S22 HTC G2 Motorola Rival A455

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