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Phone LG Sentio GS505 ZTE Z431 / Altair LG VX-8500 Chocolate TCL A30 / A3 Samsung Galaxy A21
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 3" diag.
5 : 3
2.4" diag.
4 : 3
? 5.5" diag.
18 : 9
6.5" diag.
20 : 9
Display Resolution & Type 240 x 400 pixels
(~155 ppi)
LCD (TFT/TFD)
320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
240 x 320 pixels
LCD (TFT/TFD)
720 x 1440 pixels
(~293 ppi)
LCD (TFT/TFD)
720 x 1600 pixels
(~270 ppi)
LCD (TFT/TFD)
Display Refresh ? ? ? ? 60 Hz
Battery 900 mAh 1,000 mAh 800 mAh 3,000 mAh 4,000 mAh
Processor ? ? ? 2 GHz MediaTek Helio P22 (MT6762V) 2 GHz MediaTek Helio P35 (MT6765)
RAM ? ? ? 3 GB 3 GB
Storage ? raw hardware ? raw hardware ? raw hardware 32 GB 32 GB
Main Camera 3 megapixel 2 megapixel 1 megapixel 8 megapixel 16 megapixel
Wide Camera - - - - 8 megapixel
Tele Camera - - - - -
Video Capture ? QVGA (320 x 240) QCIF (176 x 144) 1080p HD 1080p HD
Front Camera - - - 5 megapixel 13 megapixel
Weight 3.27 oz
(93g)
3.52 oz
(100g)
3.53 oz
(100g)
6.03 oz
(171g)
6.81 oz
(193g)
Dimensions 4.17" x 2.05" x 0.47"
(106 x 52 x 12 mm)
4.49" x 2.39" x 0.41"
(114 x 61 x 10.4 mm)
3.8" x 1.88" x 0.69"
(97 x 48 x 17.5 mm)
5.74" x 2.8" x 0.39"
(146 x 71 x 9.9 mm)
6.61" x 3.02" x 0.32"
(168 x 77 x 8.1 mm)
Form Factor Slab Slab Slide Slab Slab
Platform / OS (proprietary) (proprietary) (proprietary) Android Android
Network Bands

WCDMA: 4

GSM: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 38, 39, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology HSPA 7.2 ? EVDO r0 LTE (Cat 4) LTE (Cat 6)
Features 
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - - - Yes Yes
GPS / Location Yes Yes Yes n/a n/a
Water-Resistant - - - Yes
IPX2 (drip)
-
Accessibility
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M4, T3 (mostly tele-coil compatible)
Multiple Languages Yes Yes Yes n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes Yes
Alerts
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
NFC - - - - Yes
USB Yes
Micro-USB
Yes
Micro-USB
- Yes
Micro-USB
Yes
USB Type C
Wi-Fi - - - Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes Yes Yes n/a n/a
Ringer ID Yes 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 Yes Yes n/a n/a
Data & Network
Data Tethering Yes Yes Yes n/a n/a
External Antenna Jack - - Yes n/a n/a
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
Text Keyboard, Hardware - Yes - - -
Touch Screen Yes
Resistive
- - Yes
Capacitive
Yes
Capacitive
Memory
Memory Card Slot Yes Yes Yes Yes Yes
Messaging
Email Client Yes Yes - n/a n/a
Instant Messaging Yes - - n/a n/a
MMS Yes Yes Yes n/a n/a
Text Messaging Templates Yes Yes Yes n/a n/a
Music
Headphone Jack (3.5mm) - Yes - Yes Yes
Music Player Yes Yes Yes n/a n/a
Power
Fast 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 - - n/a n/a
Voice Memo Yes Yes Yes n/a n/a
Software
BREW - Yes Yes n/a n/a
Games - Yes Yes n/a n/a
Java (J2ME) Yes - - n/a n/a
Voice
HD Voice - - - Yes Yes
Speaker Phone Yes Yes Yes * Yes Yes
  * Some versions only
  LG Sentio GS505 ZTE Z431 / Altair LG VX-8500 Chocolate TCL A30 / A3 Samsung Galaxy A21
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone LG Sentio GS505 ZTE Z431 / Altair LG VX-8500 Chocolate TCL A30 / A3 Samsung Galaxy A21

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