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Phone Samsung SGH-X640 Samsung Glyde U940 Apple iPhone 13 Pro Max Sony Xperia Z2 Kyocera DuraForce Ultra 5G
Current U.S. Carriers (none) (none) (none) (none) Verizon
Global Availability Released Released Released Not yet released Released
Specifications 
Display Size ? 2.8" diag.
16.5 : 9
6.7" diag.
19.5 : 9
5.2" diag.
16 : 9
5.5" diag.
18 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
240 x 440 pixels
(~182 ppi)
LCD (TFT/TFD)
1284 x 2778 pixels
(~457 ppi)
AMOLED
1080 x 1920 pixels
(~424 ppi)
LCD (TFT/TFD)
1080 x 2160 pixels
(~443 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 120 Hz 60 Hz 60 Hz
Battery 800 mAh 1,000 mAh 4,352 mAh 3,200 mAh 4,500 mAh
Processor ? ? Apple A15 Bionic 2.3 GHz Qualcomm Snapdragon 801 MSM8974AB 2.4 GHz Qualcomm Snapdragon 765G
RAM ? ? 6 GB 3 GB 6 GB
Storage ? raw hardware ? raw hardware 128 GB * 16 GB 128 GB
Main Camera Yes 2 megapixel 12 megapixel 20 megapixel 23 megapixel
Wide Camera - - 12 megapixel - 16 megapixel
Tele Camera - - 12 megapixel - -
Video Capture - QVGA (320 x 240) 4K UHD 4K UHD 4K UHD
Front Camera - - 12 megapixel 2 megapixel 8 megapixel
Weight 3 oz
(85g)
4.2 oz
(119g)
8.46 oz
(240g)
5.75 oz
(163g)
9.81 oz
(278g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
4.09" x 1.98" x 0.71"
(104 x 50 x 18 mm)
6.33" x 3.07" x 0.3"
(161 x 78 x 7.6 mm)
5.78" x 2.89" x 0.32"
(147 x 73 x 8.2 mm)
6.5" x 2.95" x 0.63"
(165 x 75 x 16 mm)
Form Factor Clamshell Slide Slab Slab Slab
Platform / OS (proprietary) (proprietary) iOS Android Android
Network Bands

GSM: 900, 1800, 1900

CDMA: 850, 1900

5G: 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 29, 30, 38, 40, 41, 48, 66, 71, 77-C, 78, 258, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 13, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

5G: 2, 5, 66, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 12, 13, 48, 66

WCDMA: 1, 2, 5, 8

GSM: 850, 900, 1800, 1900

Data Technology GPRS EVDO r0 NR (5G) LTE (Cat 4) NR (5G)
Features 
Barometer - - Yes - Yes
Fingerprint Reader - - - - Yes
stand-alone
Flashlight - - Yes - Yes
GPS / Location - Yes n/a n/a n/a
Ruggedized - - - Yes Yes
Water-Resistant - - Yes
IPX8 (SCUBA)
Yes
IPX8 (SCUBA)
Yes
IPX8 (SCUBA)
Accessibility
Adjustable Text Size - - n/a n/a n/a
Hearing Aid Compatible - Yes Yes - Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes Yes
Connectivity
Bluetooth - Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Mobile Hotspot - - n/a n/a n/a
NFC - - Yes Yes Yes
USB - Yes - Yes
Micro-USB
Yes
USB Type C
UWB - - Yes - Yes
Wi-Fi - - Yes
6 (802.11 a,ac,ax,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 Yes n/a n/a n/a
Ringer ID Yes Yes n/a n/a n/a
Voice Dialing - Yes n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers - Yes n/a n/a n/a
Data & Network
Data Tethering - Yes n/a n/a n/a
Dual-SIM - - Yes - -
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - - -
Touch Screen - Yes Yes Yes Yes
Memory
Memory Card Slot - Yes - Yes Yes
Messaging
Email Client - - n/a n/a n/a
EMS / Picture Messaging Yes - n/a n/a n/a
Instant Messaging - - n/a n/a n/a
MMS Yes Yes n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
FM Radio - - - Yes -
Headphone Jack (3.5mm) - - - Yes Yes
Music Player - Yes n/a n/a n/a
Stereo Speakers - - Yes - -
Photo & Video
DLNA - - - Yes -
Miracast - - - Yes -
TV Output - - - Yes -
Power
Fast Charging - - Yes - Yes
Wireless Charging - - Yes - Yes
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes 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
BREW - Yes n/a n/a n/a
Games Yes Yes n/a n/a n/a
Java (J2ME) Yes - n/a n/a n/a
Voice
Call Screening - - Yes - -
HD Voice - - Yes - Yes
Headset Jack (2.5 mm) Yes Yes n/a n/a n/a
Push-To-Talk - - - - Yes
Speaker Phone Yes Yes Yes Yes Yes
  Samsung SGH-X640 Samsung Glyde U940 Apple iPhone 13 Pro Max Sony Xperia Z2 Kyocera DuraForce Ultra 5G
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Samsung Glyde U940 Apple iPhone 13 Pro Max Sony Xperia Z2 Kyocera DuraForce Ultra 5G

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