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Phone Asus ZenFone 4 Microsoft Surface Duo 2 Motorola L6 Samsung SGH-R225 / SGH-R225M Samsung SGH-i500 / SGH-i505
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size 5.5" diag.
16 : 9
8.3" diag.
4 : 3
? ? ?
Display Resolution & Type 1080 x 1920 pixels
(~401 ppi)
LCD (TFT/TFD)
2688 x 1892 pixels
(~396 ppi)
AMOLED
128 x 160 pixels
LCD (STN)
128 x 64 pixels 162 x 176 pixels
LCD (TFT/TFD)
Display Refresh 60 Hz 90 Hz ? ? ?
Battery 3,300 mAh 4,449 mAh 720 mAh ? ?
Processor 2.2 GHz Qualcomm Snapdragon 630 Qualcomm Snapdragon 888 ? ? 200 MHz Motorola MX1
RAM 4 GB 8 GB ? ? ?
Storage 64 GB 128 GB * ? raw hardware ? raw hardware ? raw hardware
Main Camera 12 megapixel 12 megapixel Yes - Yes
Wide Camera Yes 16 megapixel - - -
Tele Camera - 12 megapixel - - -
Video Capture 4K UHD 4K UHD ? - ?
Front Camera 8 megapixel 12 megapixel - - -
Weight 5.47 oz
(155g)
10.02 oz
(284g)
2.82 oz
(80g)
3.35 oz
(95g)
5.19 oz
(147g)
Dimensions 6.12" x 2.96" x 0.3"
(155 x 75 x 7.7 mm)
5.72" x 3.63" x 0.43"
(145 x 92 x 11 mm)
4.33" x 1.93" x 0.41"
(110 x 49 x 10.4 mm)
4.33" x 1.81" x 0.93"
(110 x 46 x 23.6 mm)
3.6" x 2.13" x 0.9"
(91 x 54 x 22.9 mm)
Form Factor Slab Unique Slab Slab Clamshell
Platform / OS Android Android (proprietary) (proprietary) Palm OS
Network Bands

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 28

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

5G: 1, 2, 3, 5, 7, 20, 25, 28, 38, 41, 66, 71, 77-C, 78, 257, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

GSM: 850, 900, 1800, 1900

*

GSM: 900, 1900

GSM: 900, 1800, 1900

Data Technology LTE (Cat 12) NR (5G) GPRS - GPRS
Features 
Fingerprint Reader Yes
stand-alone
Yes
stand-alone
- - -
Flashlight Yes Yes - - -
Accessibility
Hearing Aid Compatible Yes Yes - - -
Multiple Languages n/a n/a Yes Yes n/a
TTY/TDD (Digital) - - - - Yes
Alerts
Ringer Profiles - - Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes Yes
Classic Audio
- -
Infrared (IR) - - - - Yes
NFC Yes Yes - - -
USB Yes
USB Type C
Yes
USB Type C
Yes
Mini-USB
- Yes
Wi-Fi Yes
5 (802.11 a,ac,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
- - -
Contacts
Picture ID n/a n/a Yes - n/a
Ringer ID n/a n/a Yes Yes n/a
Voice Dialing n/a n/a Yes - n/a
Customization
Custom Graphics n/a n/a Yes Yes n/a
Custom Ringtones n/a n/a Yes Yes n/a
Data & Network
Data Tethering n/a n/a Yes Yes n/a
Dual-SIM Yes Yes - - -
WAP / Web Browser n/a n/a Yes - n/a
Input
Predictive Text Entry n/a n/a Yes Yes n/a
Side Keys Yes Yes Yes - Yes
Touch Screen Yes Yes - - Yes
Memory
Memory Card Slot Yes - - - Yes
Messaging
Email Client n/a n/a - - n/a
EMS / Picture Messaging n/a n/a Yes - n/a
MMS n/a n/a Yes Yes n/a
Text Messaging Templates n/a n/a Yes Yes n/a
Music
Headphone Jack (3.5mm) Yes - - - -
Stereo Speakers - Yes - - -
Photo & Video
Miracast Yes Yes - - -
TV Output - Yes - - -
Power
Fast Charging Yes Yes - - -
Productivity
Alarm n/a n/a Yes Yes n/a
Calculator n/a n/a Yes Yes n/a
Calendar n/a n/a Yes Yes n/a
To-Do List n/a n/a - - n/a
Voice Memo n/a n/a - - n/a
Software
Games n/a n/a Yes Yes n/a
Java (J2ME) n/a n/a Yes - n/a
Voice
HD Voice - Yes - - -
Headset Jack (2.5 mm) n/a n/a - Yes n/a
Push-To-Talk - - Yes * - -
Speaker Phone Yes Yes Yes - -
  * Some versions only
  Asus ZenFone 4 Microsoft Surface Duo 2 Motorola L6 Samsung SGH-R225 / SGH-R225M Samsung SGH-i500 / SGH-i505
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Asus ZenFone 4 Microsoft Surface Duo 2 Motorola L6 Samsung SGH-R225 / SGH-R225M Samsung SGH-i500 / SGH-i505

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