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Phone Samsung M520 Ericsson T66 ZTE Z222 / Z223 Motorola Droid Maxx Asus ROG Phone
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.1" diag.
4 : 3
? 2" diag.
4 : 3
5" diag.
16 : 9
6" diag.
18 : 9
Display Resolution & Type 176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
? 176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
AMOLED
1080 x 2160 pixels
(~402 ppi)
AMOLED
Display Refresh ? ? ? 60 Hz 60 Hz
Battery ? ? 900 mAh 3,500 mAh 4,000 mAh
Processor ? ? QSC6270 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T 3 GHz Qualcomm Snapdragon 845
RAM ? ? 64 MB 2 GB 8 GB
Storage ? raw hardware ? raw hardware 128 MB 32 GB 128 GB *
Main Camera 1 megapixel - Yes 10 megapixel 12 megapixel
Wide Camera - - - - 8 megapixel
Tele Camera - - - - -
Video Capture ? - ? 1080p HD 4K UHD
Front Camera - - - 2 megapixel 8 megapixel
Weight 2.75 oz
(78g)
2.08 oz
(59g)
3.24 oz
(92g)
5.89 oz
(167g)
7.05 oz
(200g)
Dimensions 4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
5.41" x 2.8" x 0.33"
(137 x 71 x 8.5 mm)
6.25" x 3" x 0.34"
(159 x 76 x 8.6 mm)
Form Factor Slide Slab Clamshell Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) Android Android
Network Bands

CDMA: 850, 1900

GSM: 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 1900

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 28, 29, 32, 34, 38, 39, 40, 41, 46

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

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 - HSDPA 3.6 LTE (Cat 3) LTE (Cat 16)
Features 
Fingerprint Reader - - - - Yes
Flashlight - - - - Yes
GPS / Location Yes - - n/a n/a
Water-Resistant - - - - Yes
Accessibility
Adjustable Text Size - - - n/a n/a
Hearing Aid Compatible Yes - Yes Yes Yes
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) Yes - Yes Yes -
Alerts
Extra Display - - Yes - -
Ringer Profiles - Yes Yes - -
Connectivity
Bluetooth Yes
Classic Audio
-
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - - - n/a n/a
NFC - - - Yes Yes
USB Yes - Yes
Micro-USB
Yes
Micro-USB
Yes
USB Type C
Wi-Fi - - - Yes
4 (802.11 a,b,g,n)
Yes
5 (802.11 a,ac,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 Yes n/a n/a
Custom Ringtones Yes Yes Yes n/a n/a
Real-Music Ringers - - Yes n/a n/a
Data & Network
Data Tethering Yes - - n/a n/a
Dual-SIM - - - - Yes
WAP / Web Browser Yes Yes Yes n/a n/a
Input
Predictive Text Entry Yes Yes Yes n/a n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - - Yes Yes
Memory
Memory Card Slot Yes - - - -
Messaging
Email Client - - Yes n/a n/a
EMS / Picture Messaging - Yes - n/a n/a
Instant Messaging - - - n/a n/a
MMS - - Yes n/a n/a
Text Messaging Templates Yes Yes Yes n/a n/a
Music
FM Radio - - Yes * - Yes
Headphone Jack (3.5mm) - - - Yes Yes
Music Player Yes - - n/a n/a
Stereo Speakers - - - - Yes
Photo & Video
Miracast - - - Yes -
TV Output - - - - Yes
Power
Fast Charging - - - - Yes
Wireless Charging - - - Yes -
Productivity
Alarm Yes Yes Yes n/a n/a
Calculator Yes Yes Yes n/a n/a
Calendar Yes Yes Yes n/a n/a
To-Do List Yes Yes - n/a n/a
Voice Memo Yes - Yes n/a n/a
Software
Games Yes Yes Yes n/a n/a
Java (J2ME) Yes - Yes n/a n/a
Voice
Speaker Phone Yes - Yes Yes Yes
  * Some versions only
  Samsung M520 Ericsson T66 ZTE Z222 / Z223 Motorola Droid Maxx Asus ROG Phone
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung M520 Ericsson T66 ZTE Z222 / Z223 Motorola Droid Maxx Asus ROG Phone

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