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Phone Casio Exilim C721 Samsung SGH-A157 Sony Xperia 5 II Sanyo MM-8300 LG K4 / Optimus Zone 3 / Rebel
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.3" diag.
4 : 3
1.8" diag.
4 : 3
6.1" diag.
21 : 9
? 4.5" diag.
16 : 9
Display Resolution & Type 240 x 320 pixels
(~174 ppi)
LCD (TFT/TFD)
128 x 160 pixels
(~116 ppi)
LCD (TFT/TFD)
1080 x 2520 pixels
(~449 ppi)
AMOLED
176 x 220 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 120 Hz ? 60 Hz
Battery 920 mAh 800 mAh 4,000 mAh 1,000 mAh 1,940 mAh
Processor ? ? Qualcomm Snapdragon 865 ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909)
RAM ? ? 8 GB ? 1.5 GB
Storage ? raw hardware 256 MB 128 GB ? raw hardware 16 GB *
Main Camera 5 megapixel - 12 megapixel Yes 5 megapixel
Wide Camera - - 12 megapixel - -
Tele Camera - - 12 megapixel - -
Video Capture QVGA (320 x 240) - 4K UHD QCIF (176 x 144) 720p HD
Front Camera - - 8 megapixel - 2 megapixel
Weight 4.48 oz
(127g)
2.99 oz
(85g)
5.7 oz
(162g)
3.6 oz
(102g)
3.99 oz
(113g)
Dimensions 4.06" x 1.97" x 0.78"
(103 x 50 x 19.9 mm)
3.83" x 1.84" x 0.65"
(97 x 47 x 16.5 mm)
6.2" x 2.6" x 0.3"
(157 x 66 x 7.6 mm)
3.35" x 1.85" x 0.97"
(85 x 47 x 24.6 mm)
5.19" x 2.62" x 0.35"
(132 x 67 x 8.9 mm)
Form Factor Clamshell Clamshell Slab Clamshell Slab
Platform / OS (proprietary) (proprietary) Android (proprietary) Android
Network Bands

CDMA: 850, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 19, 20, 25, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 48, 66

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

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

Data Technology EVDO rA ? LTE (Cat 18) 1xRTT LTE (Cat 3)
Features 
Fingerprint Reader - - Yes
stand-alone
- -
Flashlight Yes - Yes Yes Yes
GPS / Location Yes Yes n/a Yes n/a
Ruggedized Yes - - - -
Water-Resistant Yes - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size Yes Yes n/a - n/a
Hearing Aid Compatible Yes Yes Yes - Yes
Multiple Languages Yes Yes n/a - n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Extra Display Yes - - Yes -
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes - Yes - Yes
Mobile Hotspot - - n/a - n/a
NFC - - Yes - -
USB Yes Yes
Micro-USB
Yes
USB Type C
Yes Yes
Micro-USB
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 Yes n/a
Ringer ID Yes Yes n/a Yes n/a
Voice Dialing Yes - n/a Yes n/a
Customization
Changeable Body Plates - - - Yes -
Custom Graphics Yes Yes n/a Yes n/a
Custom Ringtones Yes Yes n/a Yes n/a
Real-Music Ringers Yes Yes n/a - n/a
Data & Network
Data Tethering Yes - n/a Yes n/a
Dual-SIM - - Yes - -
WAP / Web Browser Yes Yes n/a Yes n/a
Input
Predictive Text Entry Yes Yes n/a Yes n/a
Side Keys 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 - n/a
Instant Messaging Yes - 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
Stereo Speakers - - Yes - -
Photo & Video
Miracast - - - - Yes
TV Output - - Yes - -
Power
Fast Charging - - Yes - -
Productivity
Alarm Yes Yes n/a Yes n/a
Calculator Yes Yes n/a Yes n/a
Calendar Yes Yes n/a Yes n/a
To-Do List Yes Yes n/a Yes n/a
Voice Memo Yes Yes n/a Yes n/a
Software
BREW Yes - n/a - n/a
Games Yes - n/a Yes n/a
Java (J2ME) - - n/a Yes n/a
Voice
Call Screening - - - Yes -
HD Voice - - Yes - Yes *
Headset Jack (2.5 mm) - - n/a Yes n/a
Push-To-Talk - - - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Casio Exilim C721 Samsung SGH-A157 Sony Xperia 5 II Sanyo MM-8300 LG K4 / Optimus Zone 3 / Rebel
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Casio Exilim C721 Samsung SGH-A157 Sony Xperia 5 II Sanyo MM-8300 LG K4 / Optimus Zone 3 / Rebel

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