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Phone Samsung SCH-A990 Samsung Galaxy A23 5G Motorola Droid Maxx ZTE Z331
Current U.S. Carriers (none) Verizon (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 6.6" diag.
20 : 9
5" diag.
16 : 9
2.4" diag.
4 : 3
Display Resolution & Type 240 x 320 pixels
LCD (TFT/TFD)
1080 x 2408 pixels
(~400 ppi)
LCD (TFT/TFD)
720 x 1280 pixels
(~294 ppi)
AMOLED
176 x 220 pixels
(~117 ppi)
LCD (TFT/TFD)
Display Refresh ? 120 Hz 60 Hz ?
Battery 1,000 mAh 5,000 mAh 3,500 mAh 950 mAh
Processor ? 2.2 GHz Snapdragon 695 1.7 GHz Qualcomm Snapdragon S4 Pro MSM8960T ?
RAM ? 4 GB 2 GB ?
Storage ? raw hardware 64 GB 32 GB ? raw hardware
Main Camera 3 megapixel 50 megapixel 10 megapixel 3 megapixel
Wide Camera - 5 megapixel - -
Tele Camera - - - -
Video Capture ? 1080p HD 1080p HD QCIF (176 x 144)
Front Camera - 8 megapixel 2 megapixel -
Weight 4.4 oz
(125g)
6.87 oz
(195g)
5.89 oz
(167g)
4 oz
(113g)
Dimensions 3.8" x 1.88" x 0.82"
(97 x 48 x 20.8 mm)
6.47" x 3.02" x 0.33"
(164 x 77 x 8.4 mm)
5.41" x 2.8" x 0.33"
(137 x 71 x 8.5 mm)
3.84" x 2.02" x 0.69"
(98 x 51 x 17.5 mm)
Form Factor Clamshell Slab Slab Clamshell
Platform / OS (proprietary) Android Android (proprietary)
Network Bands

CDMA: 850, 1900

5G: 2, 5, 25, 30, 41, 48, 66, 70, 71, 77-C

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

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

4G LTE: 4, 13

WCDMA: 1, 2, 5, 8

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

Data Technology EVDO r0 NR (5G) LTE (Cat 3) HSDPA 3.6
Features 
Barometer - Yes - -
Fingerprint Reader - Yes
stand-alone
- -
Flashlight Yes Yes - -
GPS / Location Yes n/a n/a Yes
Water-Resistant - Yes
IPX7 (snorkeling)
- -
Accessibility
Adjustable Text Size - n/a n/a -
Hearing Aid Compatible Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Multiple Languages Yes n/a n/a Yes
TTY/TDD (Digital) Yes Yes Yes Yes
Alerts
Extra Display Yes - - Yes
Ringer Profiles - - - Yes
Connectivity
Bluetooth Yes Yes Yes Yes
Mobile Hotspot - n/a n/a -
NFC - Yes Yes -
USB Yes Yes
USB Type C
Yes
Micro-USB
Yes
Micro-USB
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID Yes n/a n/a Yes
Ringer ID Yes n/a n/a Yes
Voice Dialing Yes n/a n/a -
Customization
Custom Graphics Yes n/a n/a Yes
Custom Ringtones Yes n/a n/a Yes
Real-Music Ringers Yes n/a n/a Yes
Data & Network
Data Tethering Yes n/a n/a Yes
WAP / Web Browser Yes n/a n/a Yes
Input
Predictive Text Entry Yes n/a n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
Yes
Capacitive
-
Memory
Memory Card Slot Yes Yes - Yes
Messaging
Email Client - n/a n/a Yes
EMS / Picture Messaging Yes n/a n/a -
Instant Messaging - n/a n/a Yes
MMS Yes n/a n/a Yes
Text Messaging Templates Yes n/a n/a Yes
Music
Headphone Jack (3.5mm) - Yes Yes -
Music Player Yes n/a n/a Yes
Stereo Speakers Yes Yes - -
Photo & Video
Miracast - - Yes -
TV Output Yes - - -
Power
Fast Charging - Yes - -
Wireless Charging - - Yes -
Productivity
Alarm Yes n/a n/a Yes
Calculator Yes n/a n/a Yes
Calendar Yes n/a n/a Yes
Voice Memo Yes n/a n/a Yes
Software
BREW Yes n/a n/a -
Games Yes n/a n/a Yes
Java (J2ME) - n/a n/a Yes
Voice
HD Voice - Yes - -
Speaker Phone Yes Yes Yes Yes
  Samsung SCH-A990 Samsung Galaxy A23 5G Motorola Droid Maxx ZTE Z331
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SCH-A990 Samsung Galaxy A23 5G Motorola Droid Maxx ZTE Z331

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