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Phone Samsung SGH-X640 Sony Ericsson Z500 Samsung Transform Ultra Samsung Galaxy S21 HMD Fusion
Current U.S. Carriers (none) (none) (none) Verizon (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size ? ? 3.5" diag.
5 : 3
6.2" diag.
20 : 9
6.6" diag.
20 : 9
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
128 x 160 pixels
LCD (STN)
320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
1080 x 2400 pixels
(~424 ppi)
AMOLED
720 x 1612 pixels
(~269 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 60 Hz 120 Hz 90 Hz
Battery 800 mAh ? 1,500 mAh 4,000 mAh 5,000 mAh
Processor ? ? 1 GHz Qualcomm Snapdragon S2 MSM8655 2.8 GHz Qualcomm Snapdragon 888 2.2 GHz Snapdragon 4 Gen 2
RAM ? ? ? 8 GB 6 GB
Storage ? raw hardware ? raw hardware ? raw hardware 128 GB * 128 GB
Main Camera Yes Yes 3 megapixel 12 megapixel 108 megapixel
Wide Camera - - - 12 megapixel -
Tele Camera - - - 64 megapixel -
Video Capture - ? VGA (640 x 480) 8K 1080p HD
Front Camera - - Yes 10 megapixel 50 megapixel
Weight 3 oz
(85g)
3.88 oz
(110g)
4.9 oz
(139g)
6.03 oz
(171g)
7.2 oz
(204g)
Dimensions 3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
3.66" x 1.93" x 0.94"
(93 x 49 x 23.9 mm)
4.5" x 2.4" x 0.55"
(114 x 61 x 14 mm)
5.97" x 2.8" x 0.31"
(152 x 71 x 7.9 mm)
6.46" x 2.97" x 0.33"
(164 x 75 x 8.4 mm)
Form Factor Clamshell Clamshell Slide Slab Slab
Platform / OS (proprietary) (proprietary) Android Android Android
Network Bands

GSM: 900, 1800, 1900

GSM: 850, 1800, 1900

*

CDMA: 800, 850, 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, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

5G: 2, 4, 5, 7, 25, 41, 66, 71, 77-A, 77-C, 78

4G LTE: 2, 4, 5, 7, 8, 12, 25, 26, 28, 41, 66, 71

WCDMA: 1, 2, 4, 5

GSM: 850, 900, 1800, 1900

Data Technology GPRS EDGE EVDO rA NR (5G) NR (5G)
Features 
Barometer - - - Yes -
Fingerprint Reader - - - Yes
in-display (ultrasonic)
Yes
stand-alone
Flashlight - - - Yes Yes
GPS / Location - - n/a n/a n/a
Water-Resistant - - - Yes
IPX8 (SCUBA)
Yes
IPX4 (splash)
Accessibility
Hearing Aid Compatible - - Yes Yes Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) - Yes Yes Yes -
Alerts
Extra Display - Yes - - -
Ringer Profiles - Yes - - -
Connectivity
Bluetooth - - Yes Yes Yes
Mobile Hotspot - - n/a n/a n/a
NFC - - - Yes Yes
USB - Yes Yes Yes
USB Type C
Yes
USB Type C
Wi-Fi - - Yes
4 (802.11 a,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
6 (802.11 a,ac,ax,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
Changeable Body Plates - Yes - - -
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers - - 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
Memory
Memory Card Slot - - Yes - Yes
Messaging
Email Client - Yes n/a n/a n/a
EMS / Picture Messaging Yes Yes n/a n/a n/a
Instant Messaging - Yes 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 - - n/a n/a n/a
Stereo Speakers - - - Yes -
Photo & Video
TV Output - - - Yes -
Power
Fast Charging - - - Yes Yes
Wireless Charging - - - 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 Yes n/a n/a n/a
Voice Memo Yes Yes n/a n/a n/a
Software
Games Yes Yes n/a n/a n/a
Java (J2ME) Yes Yes n/a n/a n/a
Voice
HD Voice - - - Yes Yes
Headset Jack (2.5 mm) Yes - n/a n/a n/a
Push-To-Talk - Yes * - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-X640 Sony Ericsson Z500 Samsung Transform Ultra Samsung Galaxy S21 HMD Fusion
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-X640 Sony Ericsson Z500 Samsung Transform Ultra Samsung Galaxy S21 HMD Fusion

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