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Phone LG K20 / Harmony / Grace Kyocera KX12 Samsung Nexus S 4G LG AX-4270 / VX-4270 Google Pixel 3a XL
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 5.3" diag.
16 : 9
? 4" diag.
5 : 3
? 6" diag.
18 : 9
Display Resolution & Type 720 x 1280 pixels
(~277 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
480 x 800 pixels
(~233 ppi)
AMOLED
128 x 128 pixels
LCD (STN)
1080 x 2160 pixels
(~402 ppi)
AMOLED
Display Refresh 60 Hz ? 60 Hz ? 60 Hz
Battery 2,800 mAh 1,800 mAh 1,500 mAh ? 3,700 mAh
Processor 1.4 GHz Qualcomm Snapdragon 425 (MSM8917) ? 1 GHz Samsung Hummingbird Cortex A8 ? 2 GHz Qualcomm Snapdragon 670
RAM 1.5 GB ? ? ? 4 GB
Storage 16 GB ? raw hardware 16 GB ? raw hardware 64 GB
Main Camera 8 megapixel - 5 megapixel - 12 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture 1080p HD - WVGA / 480p - 4K UHD
Front Camera 5 megapixel - Yes - 8 megapixel
Weight 5 oz
(142g)
4.62 oz
(131g)
4.62 oz
(131g)
3.21 oz
(91g)
5.89 oz
(167g)
Dimensions 5.9" x 3" x 0.3"
(150 x 76 x 7.6 mm)
4.33" x 1.97" x 1.02"
(110 x 50 x 25.9 mm)
4.88" x 2.48" x 0.44"
(124 x 63 x 11.2 mm)
3.27" x 1.76" x 0.91"
(83 x 45 x 23.1 mm)
6.3" x 3" x 0.3"
(160 x 76 x 7.6 mm)
Form Factor Slab Slab Slab Clamshell Slab
Platform / OS Android (proprietary) Android (proprietary) Android
Network Bands

4G LTE: 2, 4, 5, 12

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

4G WiMAX: 41

CDMA: 850, 1900

CDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 20, 25, 26, 28, 29, 30, 38, 40, 41, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology LTE (Cat 4) 1xRTT WiMAX 1xRTT LTE (Cat 11)
Features 
Barometer - - - - Yes
Fingerprint Reader - - - - Yes
stand-alone
Flashlight Yes Yes - - Yes
GPS / Location n/a Yes n/a Yes n/a
Ruggedized - Yes - - -
Accessibility
Hearing Aid Compatible Yes
M3, T3 (mostly tele-coil compatible)
- Yes
M4 (very compatible)
- Yes
M3, T3 (mostly tele-coil compatible)
Multiple Languages n/a Yes n/a Yes n/a
TTY/TDD (Digital) Yes Yes - Yes Yes
Alerts
Extra Display - - - Yes -
Connectivity
Bluetooth Yes - Yes - Yes
Mobile Hotspot n/a - n/a - n/a
NFC Yes * - Yes - Yes
USB Yes
Micro-USB
- Yes
Micro-USB
- 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 Yes n/a Yes n/a
Ringer ID n/a Yes n/a Yes n/a
Voice Dialing n/a Yes n/a Yes n/a
Customization
Custom Graphics n/a Yes n/a Yes n/a
Custom Ringtones n/a Yes n/a Yes n/a
Real-Music Ringers n/a - n/a - n/a
Data & Network
Data Tethering n/a Yes n/a Yes n/a
WAP / Web Browser n/a Yes n/a Yes n/a
Input
Predictive Text Entry n/a Yes n/a Yes n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes
Capacitive
- Yes
Capacitive
- Yes
Capacitive
Memory
Memory Card Slot Yes - - - -
Messaging
Email Client n/a - n/a - n/a
EMS / Picture Messaging n/a Yes n/a - n/a
Instant Messaging n/a - n/a - n/a
MMS n/a - n/a Yes n/a
Text Messaging Templates n/a Yes n/a Yes n/a
Music
FM Radio Yes - - - -
Headphone Jack (3.5mm) Yes - Yes - Yes
Music Player n/a - n/a - n/a
Stereo Speakers - - - - Yes
Power
Fast Charging - - - - Yes
Productivity
Alarm n/a Yes n/a Yes n/a
Calculator n/a Yes n/a Yes n/a
Calendar n/a Yes n/a Yes n/a
Voice Memo n/a Yes n/a Yes n/a
Software
BREW n/a Yes * n/a Yes n/a
Games n/a Yes n/a Yes n/a
Voice
Call Screening - - - - Yes
HD Voice Yes - - - Yes
Headset Jack (2.5 mm) n/a Yes n/a Yes n/a
Push-To-Talk - Yes - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  LG K20 / Harmony / Grace Kyocera KX12 Samsung Nexus S 4G LG AX-4270 / VX-4270 Google Pixel 3a XL
  X > < X > < X > < X > < X

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

 
Phone LG K20 / Harmony / Grace Kyocera KX12 Samsung Nexus S 4G LG AX-4270 / VX-4270 Google Pixel 3a XL

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