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Phone Samsung Rugby 4 Samsung Galaxy Ring / Prevail 2 Motorola Moto Z2 Force OnePlus 7 Pro (5G)
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size 2.4" diag.
4 : 3
4" diag.
5 : 3
5.5" diag.
16 : 9
6.7" diag.
19.5 : 9
Display Resolution & Type 240 x 320 pixels
(~167 ppi)
LCD (TFT/TFD)
480 x 800 pixels
(~233 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~534 ppi)
AMOLED
1440 x 3120 pixels
(~515 ppi)
AMOLED
Display Refresh ? 60 Hz 60 Hz 90 Hz
Battery 1,300 mAh 1,750 mAh 2,730 mAh 4,000 mAh
Processor Intel XMM6230 1.4 GHz Qualcomm Snapdragon S2 MSM8655 2.4 GHz Qualcomm Snapdragon 835 (MSM8998) 2.8 GHz Qualcomm Snapdragon 855
RAM 128 MB 1 GB 4 GB 6 GB *
Storage 256 MB 4 GB 64 GB 128 GB *
Main Camera 3 megapixel 5 megapixel 12 megapixel 48 megapixel
Wide Camera - - - 16 megapixel
Tele Camera - - - 8 megapixel
Video Capture QVGA (320 x 240) 720p HD 4K UHD 4K UHD
Front Camera - 1 megapixel 5 megapixel 16 megapixel
Weight 5.22 oz
(148g)
3.4 oz
(96g)
5.04 oz
(143g)
7.27 oz
(206g)
Dimensions 4.25" x 2.17" x 0.85"
(108 x 55 x 21.6 mm)
4.83" x 2.48" x 0.47"
(123 x 63 x 11.9 mm)
6.13" x 2.99" x 0.24"
(156 x 76 x 6.1 mm)
6.4" x 2.99" x 0.35"
(163 x 76 x 8.8 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android Android Android
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

CDMA: 800, 850, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 25, 26, 28, 41, 66

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

*

5G: 41

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 34, 38, 39, 41, 46, 48, 66, 71

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

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

Data Technology HSPA+ 21 EVDO rA LTE (Cat 16) LTE (Cat 18)
Features 
Barometer - - Yes -
Fingerprint Reader - - Yes
stand-alone
Yes
in-display (optical)
Flashlight - - Yes Yes
GPS / Location Yes n/a n/a n/a
Ruggedized Yes - - -
VR-ready - - Yes -
Water-Resistant Yes
IPX7 (snorkeling)
- Yes Yes
Accessibility
Adjustable Text Size Yes n/a n/a n/a
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - - -
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
4 (802.11 a,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Contacts
Picture ID Yes n/a n/a n/a
Ringer ID Yes n/a n/a n/a
Voice Dialing Yes n/a n/a n/a
Customization
Custom Graphics Yes n/a n/a n/a
Custom Ringtones Yes n/a n/a n/a
Real-Music Ringers Yes n/a n/a n/a
Data & Network
Dual-SIM - - Yes * -
WAP / Web Browser Yes n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys 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 - 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
Headphone Jack (3.5mm) - Yes - -
Music Player Yes n/a n/a n/a
Stereo Speakers - - - Yes
Photo & Video
DLNA - Yes - -
Power
Fast Charging - - Yes Yes
Productivity
Alarm Yes n/a n/a n/a
Calculator Yes n/a n/a n/a
Calendar Yes n/a n/a n/a
To-Do List Yes n/a n/a n/a
Voice Memo Yes n/a n/a n/a
Software
Games Yes n/a n/a n/a
Java (J2ME) Yes n/a n/a n/a
Voice
HD Voice - - Yes Yes
Push-To-Talk Yes - - -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung Rugby 4 Samsung Galaxy Ring / Prevail 2 Motorola Moto Z2 Force OnePlus 7 Pro (5G)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Rugby 4 Samsung Galaxy Ring / Prevail 2 Motorola Moto Z2 Force OnePlus 7 Pro (5G)

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