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Phone HTC Droid Eris OnePlus 12 Samsung Rugby A837 ZTE Z331 Samsung M520
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 3.2" diag.
5 : 3
6.8" diag.
20 : 9
2" diag.
4 : 3
2.4" diag.
4 : 3
2.1" diag.
4 : 3
Display Resolution & Type 320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
1440 x 3168 pixels
(~510 ppi)
AMOLED
176 x 220 pixels
(~141 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~117 ppi)
LCD (TFT/TFD)
176 x 220 pixels
(~134 ppi)
LCD (TFT/TFD)
Display Refresh 60 Hz 120 Hz ? ? ?
Battery 1,300 mAh 5,400 mAh 1,000 mAh 950 mAh ?
Processor 528 MHz MSM7600 Snapdragon 8 Gen 3 ? ? ?
RAM ? 12 GB * ? ? ?
Storage ? raw hardware 256 GB * ? raw hardware ? raw hardware ? raw hardware
Main Camera 5 megapixel 50 megapixel 1 megapixel 3 megapixel 1 megapixel
Wide Camera - 48 megapixel - - -
Tele Camera - 64 megapixel - - -
Video Capture CIF (352 x 288) 8K QCIF (176 x 144) QCIF (176 x 144) ?
Front Camera - 32 megapixel - - -
Weight 4.43 oz
(126g)
7.76 oz
(220g)
4.66 oz
(132g)
4 oz
(113g)
2.75 oz
(78g)
Dimensions 4.45" x 2.19" x 0.52"
(113 x 55 x 13.2 mm)
6.47" x 2.98" x 0.36"
(164 x 76 x 9.1 mm)
3.95" x 2.05" x 0.9"
(100 x 52 x 22.9 mm)
3.84" x 2.02" x 0.69"
(98 x 51 x 17.5 mm)
4.01" x 2.04" x 0.5"
(102 x 52 x 12.7 mm)
Form Factor Slab Slab Clamshell Clamshell Slide
Platform / OS Android Android (proprietary) (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

5G: 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 38, 41, 66, 71, 77-C, 78

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

WCDMA: 1, 2, 4, 5, 6, 8, 19

GSM: 850, 900, 1800, 1900

WCDMA: 2, 5

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

Data Technology EVDO rA NR (5G) HSDPA 3.6 HSDPA 3.6 EVDO r0
Features 
Fingerprint Reader - Yes
in-display (optical)
- - -
Flashlight - Yes - - -
GPS / Location n/a n/a Yes Yes Yes
Ruggedized - - Yes - -
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes Yes
Multiple Languages n/a n/a Yes Yes Yes
TTY/TDD (Digital) Yes - Yes Yes Yes
Alerts
Extra Display - - Yes Yes -
Ringer Profiles - - - Yes -
Connectivity
Bluetooth Yes
Classic Audio
Yes
Auracast, LE Audio, Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
NFC - Yes - - -
USB Yes
Mini-USB
Yes
USB Type C
Yes Yes
Micro-USB
Yes
Wi-Fi Yes
802.11 b,g
Yes
7 (802.11 a,ac,ax,b,be,g,n)
- - -
Contacts
Picture ID n/a n/a Yes Yes Yes
Ringer ID n/a n/a Yes Yes Yes
Voice Dialing n/a n/a - - Yes
Customization
Custom Graphics n/a n/a Yes Yes Yes
Custom Ringtones n/a n/a Yes Yes Yes
Real-Music Ringers n/a n/a Yes Yes -
Data & Network
Data Tethering n/a n/a Yes Yes Yes
Dual-SIM - Yes - - -
WAP / Web Browser n/a n/a Yes Yes Yes
Input
Predictive Text Entry n/a n/a Yes Yes Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen Yes Yes - - -
Memory
Memory Card Slot Yes - Yes Yes Yes
Messaging
Email Client n/a n/a Yes Yes -
Instant Messaging n/a n/a Yes Yes -
MMS n/a n/a Yes Yes -
Text Messaging Templates n/a n/a Yes Yes Yes
Music
Headphone Jack (3.5mm) Yes - - - -
Music Player n/a n/a Yes Yes Yes
Power
Fast Charging - Yes - - -
Wireless Charging - Yes - - -
Productivity
Alarm n/a n/a Yes Yes Yes
Calculator n/a n/a Yes Yes Yes
Calendar n/a n/a Yes Yes Yes
To-Do List n/a n/a - - Yes
Voice Memo n/a n/a Yes Yes Yes
Software
Games n/a n/a Yes Yes Yes
Java (J2ME) n/a n/a Yes Yes Yes
Voice
HD Voice - Yes - - -
Push-To-Talk - - Yes - -
Speaker Phone Yes Yes Yes Yes Yes
  HTC Droid Eris OnePlus 12 Samsung Rugby A837 ZTE Z331 Samsung M520
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone HTC Droid Eris OnePlus 12 Samsung Rugby A837 ZTE Z331 Samsung M520

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