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Phone Samsung SCH-A770 UTStarcom CDM-8905 Motorola Moto Z2 Force Motorola Flipside Asus ROG Phone II
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Not yet released Released Released Released Not yet released
Specifications 
Display Size ? ? 5.5" diag.
16 : 9
3.1" diag.
5 : 3
6.6" diag.
19.5 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
1440 x 2560 pixels
(~534 ppi)
AMOLED
320 x 480 pixels
(~186 ppi)
LCD (TFT/TFD)
1080 x 2340 pixels
(~391 ppi)
AMOLED
Display Refresh ? ? 60 Hz 60 Hz 120 Hz
Battery 1,100 mAh 1,100 mAh 2,730 mAh 1,150 mAh 6,000 mAh
Processor ? ? 2.4 GHz Qualcomm Snapdragon 835 (MSM8998) 720 MHz TI OMAP 3410 3 GHz Qualcomm Snapdragon 855 Plus
RAM ? ? 4 GB ? 12 GB
Storage ? raw hardware ? raw hardware 64 GB ? raw hardware 512 GB
Main Camera 1 megapixel - 12 megapixel 3 megapixel 48 megapixel
Wide Camera - - - - 13 megapixel
Tele Camera - - - - -
Video Capture ? - 4K UHD CIF (352 x 288) 4K UHD
Front Camera - - 5 megapixel - 24 megapixel
Weight ? 3.5 oz
(99g)
5.04 oz
(143g)
5.11 oz
(145g)
8.47 oz
(240g)
Dimensions ? 3.3" x 1.75" x 0.81"
(84 x 44 x 20.6 mm)
6.13" x 2.99" x 0.24"
(156 x 76 x 6.1 mm)
4.31" x 2.26" x 0.59"
(109 x 57 x 15 mm)
6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 mm)
Form Factor Clamshell Clamshell Slab Slide Slab
Platform / OS (proprietary) (proprietary) Android Android Android
Network Bands

CDMA: 850, 1900

CDMA: 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

WCDMA: 2, 5

GSM: 850, 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

Data Technology 1xRTT - LTE (Cat 16) HSPA 7.2 LTE (Cat 20)
Features 
Barometer - - Yes - -
Fingerprint Reader - - Yes
stand-alone
- Yes
in-display (optical)
Flashlight - - Yes - Yes
GPS / Location Yes Yes n/a n/a n/a
VR-ready - - Yes - -
Water-Resistant - - Yes - -
Accessibility
Hearing Aid Compatible - - Yes Yes Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes -
Alerts
Extra Display Yes Yes - - -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth - - Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
NFC - - Yes - Yes
USB - - Yes
USB Type C
Yes
Micro-USB
Yes
USB Type C
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes - n/a n/a n/a
Ringer ID Yes Yes n/a n/a n/a
Voice Dialing Yes Yes n/a n/a n/a
Customization
Custom Graphics Yes - n/a n/a n/a
Custom Ringtones Yes - n/a n/a n/a
Real-Music Ringers - - n/a n/a n/a
Data & Network
Data Tethering Yes - n/a n/a n/a
Dual-SIM - - Yes * - Yes
WAP / Web Browser Yes - n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen - - Yes Yes Yes
Memory
Memory Card Slot Yes - Yes Yes -
Messaging
Email Client - - n/a n/a n/a
Instant Messaging - - n/a n/a n/a
MMS Yes - n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
FM Radio - - - Yes Yes
Headphone Jack (3.5mm) - - - Yes Yes
Music Player - - n/a n/a n/a
Stereo Speakers - - - - Yes
Photo & Video
TV Output - - - - Yes
Power
Fast Charging - - Yes - Yes
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List Yes - n/a n/a n/a
Voice Memo Yes Yes n/a n/a n/a
Software
BREW Yes - n/a n/a n/a
Games Yes - n/a n/a n/a
Voice
Call Screening Yes - - - -
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes Yes n/a n/a n/a
Speaker Phone - Yes Yes Yes Yes
  * Some versions only
  Samsung SCH-A770 UTStarcom CDM-8905 Motorola Moto Z2 Force Motorola Flipside Asus ROG Phone II
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-A770 UTStarcom CDM-8905 Motorola Moto Z2 Force Motorola Flipside Asus ROG Phone II

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