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Phone LG Optimus Zone Sharp Sidekick LX 2009 Google Pixel 5a Samsung Galaxy S21
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 3.2" diag.
4 : 3
3.2" diag.
16 : 9
6.3" diag.
20 : 9
6.2" diag.
20 : 9
Display Resolution & Type 240 x 320 pixels
(~125 ppi)
LCD (TFT/TFD)
854 x 480 pixels
(~306 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~415 ppi)
AMOLED
1080 x 2400 pixels
(~424 ppi)
AMOLED
Display Refresh 60 Hz ? 60 Hz 120 Hz
Battery 1,540 mAh 1,250 mAh 4,680 mAh 4,000 mAh
Processor 800 MHz Qualcomm Snapdragon S1 MSM7625A ? 2.4 GHz Qualcomm Snapdragon 765G 2.8 GHz Qualcomm Snapdragon 888
RAM 512 MB ? 6 GB 8 GB
Storage 4 GB ? raw hardware 128 GB 128 GB *
Main Camera 3 megapixel 3 megapixel 12 megapixel 12 megapixel
Wide Camera - - 16 megapixel 12 megapixel
Tele Camera - - - 64 megapixel
Video Capture VGA (640 x 480) QVGA (320 x 240) 4K UHD 8K
Front Camera - - 8 megapixel 10 megapixel
Weight 3.88 oz
(110g)
5.78 oz
(164g)
6.53 oz
(185g)
6.03 oz
(171g)
Dimensions 4.04" x 2.42" x 0.47"
(103 x 61 x 11.9 mm)
5.12" x 2.36" x 0.63"
(130 x 60 x 16 mm)
6.1" x 2.9" x 0.3"
(155 x 74 x 7.6 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
Form Factor Slab Swivel Slab Slab
Platform / OS Android (proprietary) Android Android
Network Bands

CDMA: 850, 1900

WCDMA: 1, 4

GSM: 850, 900, 1800, 1900

5G: 1, 2, 5, 12, 25, 28, 41, 66, 71, 77-C, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 32, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

5G: 2, 5, 12, 25, 30, 41, 66, 71, 77-C, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

Data Technology EVDO rA HSPA 7.2 NR (5G) NR (5G)
Features 
Barometer - - Yes Yes
Fingerprint Reader - - Yes
stand-alone
Yes
in-display (ultrasonic)
Flashlight - - Yes Yes
GPS / Location n/a Yes n/a n/a
Water-Resistant - - Yes
IPX7 (snorkeling)
Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size n/a Yes n/a n/a
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages n/a Yes n/a n/a
TTY/TDD (Digital) Yes - Yes Yes
Alerts
Ringer Profiles - Yes - -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
NFC - - Yes Yes
USB Yes
Micro-USB
Yes Yes
USB Type C
Yes
USB Type C
Wi-Fi Yes
4 (802.11 b,g,n)
- Yes
5 (802.11 a,ac,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Contacts
Picture ID n/a Yes n/a n/a
Ringer ID n/a Yes n/a n/a
Voice Dialing n/a - n/a n/a
Customization
Custom Graphics n/a Yes n/a n/a
Custom Ringtones n/a Yes n/a n/a
Real-Music Ringers n/a Yes n/a n/a
Data & Network
Dual-SIM - - Yes -
WAP / Web Browser n/a Yes n/a n/a
Input
Side Keys Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - -
Touch Screen Yes - Yes Yes
Memory
Memory Card Slot Yes Yes - -
Messaging
Email Client n/a Yes n/a n/a
Instant Messaging n/a Yes n/a n/a
MMS n/a Yes n/a n/a
Text Messaging Templates n/a Yes n/a n/a
Music
Headphone Jack (3.5mm) Yes Yes Yes -
Music Player n/a Yes n/a n/a
Stereo Speakers - - Yes Yes
Photo & Video
TV Output - - - Yes
Power
Fast Charging - - Yes Yes
Wireless Charging - - - Yes
Productivity
Alarm n/a Yes n/a n/a
Calculator n/a - n/a n/a
Calendar n/a Yes n/a n/a
To-Do List n/a Yes n/a n/a
Voice Memo n/a - n/a n/a
Software
Games n/a Yes n/a n/a
Java (J2ME) n/a Yes n/a n/a
Voice
Call Screening - - Yes -
HD Voice - - Yes Yes
Speaker Phone Yes Yes Yes Yes
  LG Optimus Zone Sharp Sidekick LX 2009 Google Pixel 5a Samsung Galaxy S21
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone LG Optimus Zone Sharp Sidekick LX 2009 Google Pixel 5a Samsung Galaxy S21

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