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Phone Samsung SGH-X640 Samsung SGH-D800 TCL REVVL 5G HTC G2
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? ? 6.5" diag.
19.5 : 9
3.7" diag.
5 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~395 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~252 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 60 Hz
Battery 800 mAh 800 mAh 4,500 mAh 1,300 mAh
Processor ? ? 2.4 GHz Qualcomm Snapdragon 765 800 MHz Qualcomm S2 MSM7230
RAM ? ? 6 GB ?
Storage ? raw hardware ? raw hardware 256 GB ? raw hardware
Main Camera Yes 1 megapixel 48 megapixel 5 megapixel
Wide Camera - - 8 megapixel -
Tele Camera - - - -
Video Capture - ? 4K UHD 720p HD
Front Camera - - 16 megapixel -
Weight 3 oz
(85g)
3.46 oz
(98g)
7.58 oz
(215g)
6.5 oz
(184g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.82" x 2.05" x 0.59"
(97 x 52 x 15 mm)
6.51" x 3" x 0.37"
(165 x 76 x 9.4 mm)
4.68" x 2.37" x 0.55"
(119 x 60 x 14 mm)
Form Factor Clamshell Slide Slab Slab
Platform / OS (proprietary) (proprietary) Android Android
Network Bands

GSM: 900, 1800, 1900

GSM: 900, 1800, 1900

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

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 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

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

Data Technology GPRS EDGE NR (5G) HSPA 14.4
Features 
Fingerprint Reader - - Yes
stand-alone
-
Flashlight - - Yes -
GPS / Location - - n/a n/a
Accessibility
Hearing Aid Compatible - - Yes
M3, T4 (very tele-coil compatible)
Yes
M3 (mostly compatible)
Multiple Languages Yes Yes n/a n/a
TTY/TDD (Digital) - - Yes -
Connectivity
Bluetooth - Yes Yes Yes
Mobile Hotspot - - n/a n/a
NFC - - Yes -
USB - - Yes
USB Type C
Yes
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes Yes n/a n/a
Ringer ID Yes Yes n/a n/a
Voice Dialing - Yes n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a
Custom Ringtones Yes Yes n/a n/a
Real-Music Ringers - Yes n/a n/a
Data & Network
Data Tethering - Yes n/a n/a
External Antenna Jack - Yes n/a n/a
WAP / Web Browser Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes
Touch Screen - - Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot - - Yes Yes
Messaging
Email Client - Yes n/a n/a
EMS / Picture Messaging Yes Yes n/a n/a
Instant Messaging - - n/a n/a
MMS Yes Yes n/a n/a
Text Messaging Templates Yes Yes n/a n/a
Music
Headphone Jack (3.5mm) - - Yes Yes
Music Player - Yes n/a n/a
Photo & Video
TV Output - Yes - -
Productivity
Alarm Yes Yes n/a n/a
Calculator Yes Yes n/a n/a
Calendar Yes Yes n/a n/a
To-Do List Yes - n/a n/a
Voice Memo Yes Yes n/a n/a
Software
Games Yes Yes n/a n/a
Java (J2ME) Yes Yes n/a n/a
Voice
HD Voice - - Yes -
Headset Jack (2.5 mm) Yes - n/a n/a
Speaker Phone Yes Yes Yes Yes
  Samsung SGH-X640 Samsung SGH-D800 TCL REVVL 5G HTC G2
  X > < X > < X > < X

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Phone Samsung SGH-X640 Samsung SGH-D800 TCL REVVL 5G HTC G2

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