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Phone Samsung SGH-X640 Samsung Galaxy Z Fold3 Motorola KRZR K1m BlackBerry Bold 9900 Audiovox CDM-8400 / CDM-8410
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 7.6" diag.
4 : 3
? 2.8" diag.
4 : 3
?
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
1768 x 2208 pixels
(~372 ppi)
AMOLED
176 x 220 pixels
LCD (TFT/TFD)
640 x 480 pixels
(~286 ppi)
LCD (TFT/TFD)
128 x 128 pixels
LCD (STN)
Display Refresh ? 120 Hz ? ? ?
Battery 800 mAh 4,400 mAh 880 mAh 1,230 mAh ?
Processor ? Qualcomm Snapdragon 888 ? 1.2 GHz Qualcomm Snapdragon S2 MSM8255 ?
RAM ? 12 GB ? 768 MB ?
Storage ? raw hardware 256 GB * ? raw hardware 8 GB ? raw hardware
Main Camera Yes 12 megapixel 1 megapixel 5 megapixel -
Wide Camera - 12 megapixel - - -
Tele Camera - 12 megapixel - - -
Video Capture - 4K UHD ? 720p HD -
Front Camera - 10 megapixel - - -
Weight 3 oz
(85g)
9.56 oz
(271g)
3.63 oz
(103g)
4.59 oz
(130g)
3.52 oz
(100g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
6.23" x 2.64" x 0.63"
(158 x 67 x 16 mm)
4.06" x 1.73" x 0.67"
(103 x 44 x 17 mm)
4.53" x 2.6" x 0.41"
(115 x 66 x 10.5 mm)
4.3" x 1.8" x 0.7"
(109 x 46 x 17.8 mm)
Form Factor Clamshell Foldable Clamshell Slab Slab
Platform / OS (proprietary) Android (proprietary) BlackBerry OS (proprietary)
Network Bands

GSM: 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, 3, 4, 5, 8

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

AMPS: 850

Data Technology GPRS NR (5G) EVDO r0 HSPA 14.4 1xRTT
Features 
Barometer - Yes - - -
Fingerprint Reader - Yes
stand-alone
- - -
Flashlight - Yes - - -
GPS / Location - n/a Yes n/a Yes
Water-Resistant - Yes
IPX8 (SCUBA)
- - -
Accessibility
Adjustable Text Size - n/a - n/a -
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3 (mostly compatible)
Yes
M3, T3 (mostly tele-coil compatible)
-
Multiple Languages Yes n/a Yes n/a Yes
TTY/TDD (Digital) - Yes Yes Yes Yes
Alerts
Extra Display - Yes Yes - -
Ringer Profiles - - Yes Yes -
Connectivity
Bluetooth - Yes Yes Yes -
NFC - Yes - Yes -
USB - Yes
USB Type C
Yes
Mini-USB
Yes
Micro-USB
-
UWB - Yes - - -
Wi-Fi - Yes
6 (802.11 a,ac,ax,b,g,n)
- Yes
4 (802.11 a,b,g,n)
-
Contacts
Picture ID Yes n/a Yes n/a -
Ringer ID Yes n/a Yes n/a -
Voice Dialing - n/a Yes n/a Yes
Customization
Custom Graphics Yes n/a Yes n/a Yes
Custom Ringtones Yes n/a Yes n/a Yes
Real-Music Ringers - n/a - n/a -
Data & Network
Data Tethering - n/a Yes n/a Yes
Dual-SIM - Yes - - -
WAP / Web Browser Yes n/a Yes n/a Yes
Input
Predictive Text Entry Yes n/a Yes n/a Yes
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware - - - Yes -
Touch Screen - Yes
Capacitive
- Yes
Capacitive
-
Memory
Memory Card Slot - - Yes Yes -
Messaging
Email Client - n/a - n/a -
EMS / Picture Messaging Yes n/a Yes n/a Yes
Instant Messaging - n/a Yes * n/a -
MMS Yes n/a Yes n/a -
Text Messaging Templates Yes n/a Yes n/a -
Music
Headphone Jack (3.5mm) - - - Yes -
Music Player - n/a Yes n/a -
Stereo Speakers - Yes - - -
Photo & Video
TV Output - Yes - - -
Power
Fast Charging - Yes - - -
Wireless Charging - Yes - - -
Productivity
Alarm Yes n/a Yes n/a Yes
Calculator Yes n/a Yes n/a Yes
Calendar Yes n/a Yes n/a Yes
To-Do List Yes n/a - n/a -
Voice Memo Yes n/a Yes n/a Yes
Software
BREW - n/a Yes * n/a Yes
Games Yes n/a Yes n/a Yes
Java (J2ME) Yes n/a Yes * n/a -
Voice
HD Voice - Yes - - -
Headset Jack (2.5 mm) Yes n/a - n/a Yes
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 Samsung Galaxy Z Fold3 Motorola KRZR K1m BlackBerry Bold 9900 Audiovox CDM-8400 / CDM-8410
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Samsung Galaxy Z Fold3 Motorola KRZR K1m BlackBerry Bold 9900 Audiovox CDM-8400 / CDM-8410

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