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Phone ZTE Z221 Alcatel Idol Samsung Galaxy J2 / J2 Pure / J2 Dash Sanyo RL-4920 CAT S61
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2" diag.
4 : 3
4.7" diag.
16 : 9
5" diag.
16 : 9
? 5.2" diag.
16 : 9
Display Resolution & Type 240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~234 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~220 ppi)
LCD (TFT/TFD)
128 x 112 pixels
LCD (Color)
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ? 60 Hz
Battery 900 mAh 1,800 mAh 2,600 mAh 1,700 mAh 4,500 mAh
Processor ? 1 GHz MediaTek 6577 1.4 GHz Samsung Exynos 7570 ? 2.2 GHz Qualcomm Snapdragon 630
RAM ? 512 MB 2 GB ? 4 GB
Storage 142 MB 4 GB 16 GB ? raw hardware 64 GB
Main Camera Yes 8 megapixel 8 megapixel - 16 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture QCIF (176 x 144) 720p HD 1080p HD - 4K UHD
Front Camera - 2 megapixel 5 megapixel - 8 megapixel
Weight 3.24 oz
(92g)
3.88 oz
(110g)
5.43 oz
(154g)
4.03 oz
(114g)
9.03 oz
(256g)
Dimensions 3.76" x 1.92" x 0.73"
(96 x 49 x 18.5 mm)
5.24" x 2.66" x 0.31"
(133 x 67 x 7.9 mm)
5.65" x 2.84" x 0.35"
(144 x 72 x 8.9 mm)
4.22" x 1.85" x 0.85"
(107 x 47 x 21.6 mm)
5.91" x 2.99" x 0.51"
(150 x 76 x 13 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Android Android (proprietary) Android
Network Bands

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 3, 4, 5, 7, 12, 14, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 25, 26, 28, 29, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 HSPA 7.2 LTE (Cat 4) 1xRTT LTE (Cat 13)
Features 
Barometer - - - - Yes
Flashlight - Yes Yes - Yes
GPS / Location Yes n/a n/a Yes n/a
Ruggedized - - - - Yes
Water-Resistant - - - - Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size - n/a n/a - n/a
Hearing Aid Compatible Yes Yes Yes - Yes
Multiple Languages Yes n/a n/a Yes n/a
TTY/TDD (Digital) Yes - Yes Yes -
Alerts
Extra Display Yes - - - -
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes Yes Yes - Yes
Mobile Hotspot - n/a n/a - n/a
NFC - - - - Yes
USB Yes Yes
Micro-USB
Yes
Micro-USB
Yes Yes
USB Type C
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
4 (802.11 b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID - n/a n/a Yes n/a
Ringer ID - n/a n/a Yes n/a
Voice Dialing - n/a n/a Yes n/a
Customization
Custom Graphics Yes n/a n/a Yes n/a
Custom Ringtones Yes n/a n/a Yes n/a
Real-Music Ringers Yes n/a n/a - n/a
Data & Network
Data Tethering - n/a n/a - n/a
Dual-SIM - - - - Yes *
WAP / Web Browser Yes n/a n/a Yes n/a
Input
Predictive Text Entry Yes n/a n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes Yes - Yes
Memory
Memory Card Slot - Yes Yes - Yes
Messaging
Email Client Yes n/a n/a - n/a
Instant Messaging Yes n/a n/a - n/a
MMS Yes n/a n/a - n/a
Text Messaging Templates Yes n/a n/a - n/a
Music
FM Radio - Yes - - Yes
Headphone Jack (3.5mm) - Yes Yes - Yes
Music Player - n/a n/a - n/a
Photo & Video
DLNA - Yes - - -
Power
Fast Charging - - - - Yes
Productivity
Alarm Yes n/a n/a Yes n/a
Calculator Yes n/a n/a Yes n/a
Calendar Yes n/a n/a Yes n/a
To-Do List - n/a n/a Yes n/a
Voice Memo Yes n/a n/a Yes n/a
Software
Games Yes n/a n/a Yes n/a
Java (J2ME) Yes n/a n/a Yes n/a
Voice
Call Screening - - - Yes -
Headset Jack (2.5 mm) - n/a n/a Yes n/a
Push-To-Talk - - - Yes -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  ZTE Z221 Alcatel Idol Samsung Galaxy J2 / J2 Pure / J2 Dash Sanyo RL-4920 CAT S61
  X > < X > < X > < X > < X

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

 
Phone ZTE Z221 Alcatel Idol Samsung Galaxy J2 / J2 Pure / J2 Dash Sanyo RL-4920 CAT S61

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