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Phone Samsung SGH-X640 BLU G90 Pro Samsung SGH-T819 Motorola i265 HTC Amaze 4G
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 6.5" diag.
19.5 : 9
? ? 4.3" diag.
16 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1080 x 2340 pixels
(~396 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
128 x 128 pixels
LCD (Color)
540 x 960 pixels
(~256 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz ? ? 60 Hz
Battery 800 mAh 5,000 mAh ? 750 mAh 1,730 mAh
Processor ? 2 GHz MediaTek Helio G90T ? ? 1.5 GHz Qualcomm Snapdragon S3 dual-core
RAM ? 4 GB ? ? 1 GB
Storage ? raw hardware 128 GB ? raw hardware ? raw hardware 16 GB
Main Camera Yes 48 megapixel 1 megapixel - 8 megapixel
Wide Camera - 8 megapixel - - -
Tele Camera - - - - -
Video Capture - 4K UHD QCIF (176 x 144) - 1080p HD
Front Camera - 32 megapixel - - 2 megapixel
Weight 3 oz
(85g)
7.58 oz
(215g)
3.46 oz
(98g)
4.59 oz
(130g)
6.1 oz
(173g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.38" x 3.03" x 0.4"
(162 x 77 x 10.2 mm)
3.96" x 2.03" x 0.55"
(101 x 52 x 14 mm)
4.8" x 1.96" x 1.02"
(122 x 50 x 25.9 mm)
5.12" x 2.58" x 0.46"
(130 x 66 x 11.7 mm)
Form Factor Clamshell Slab Slide Slab Slab
Platform / OS (proprietary) Android (proprietary) (proprietary) Android
Network Bands

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 28

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

WCDMA: 4

GSM: 850, 900, 1800, 1900

iDEN: 800

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology GPRS LTE (Cat 6) WCDMA (UMTS) - HSPA+ 42
Features 
Fingerprint Reader - Yes
stand-alone
- - -
Flashlight - Yes - - Yes
GPS / Location - n/a - Yes n/a
Accessibility
Hearing Aid Compatible - - - - Yes
Multiple Languages Yes n/a Yes Yes n/a
TTY/TDD (Digital) - Yes - Yes Yes
Alerts
Ringer Profiles - - Yes Yes -
Connectivity
Bluetooth - Yes Yes
Classic Audio
- Yes
Classic Audio
Mobile Hotspot - n/a - - n/a
NFC - - - - Yes
USB - Yes
USB Type C
Yes - Yes
Wi-Fi - Yes
4 (802.11 a,b,g,n)
- - Yes
4 (802.11 a,b,g,n)
Contacts
Picture ID Yes n/a Yes - n/a
Ringer ID Yes n/a Yes Yes n/a
Voice Dialing - n/a Yes Yes n/a
Customization
Custom Graphics Yes n/a Yes Yes n/a
Custom Ringtones Yes n/a Yes Yes n/a
Real-Music Ringers - n/a Yes - n/a
Data & Network
Data Tethering - n/a Yes Yes n/a
Dual-SIM - Yes - - -
WAP / Web Browser Yes n/a Yes Yes n/a
Input
Predictive Text Entry Yes n/a Yes Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes - - Yes
Memory
Memory Card Slot - Yes Yes - Yes
Messaging
Email Client - n/a - - n/a
EMS / Picture Messaging Yes n/a Yes - n/a
Instant Messaging - n/a Yes - n/a
MMS Yes n/a Yes Yes n/a
Text Messaging Templates Yes n/a Yes Yes n/a
Music
FM Radio - Yes - - Yes
Headphone Jack (3.5mm) - Yes - - Yes
Music Player - n/a Yes - n/a
Photo & Video
DLNA - - - - Yes
TV Output - - - - Yes
Power
Fast Charging - Yes - - -
Wireless Charging - Yes - - -
Productivity
Alarm Yes n/a Yes - n/a
Calculator Yes n/a Yes Yes n/a
Calendar Yes n/a Yes Yes n/a
To-Do List Yes n/a Yes - n/a
Voice Memo Yes n/a - Yes n/a
Software
Games Yes n/a Yes Yes n/a
Java (J2ME) Yes n/a Yes Yes n/a
Voice
Headset Jack (2.5 mm) Yes n/a - Yes n/a
Push-To-Talk - - - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 BLU G90 Pro Samsung SGH-T819 Motorola i265 HTC Amaze 4G
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 BLU G90 Pro Samsung SGH-T819 Motorola i265 HTC Amaze 4G

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