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Phone Samsung SGH-E640 Sony Ericsson Xperia X10 mini (2010) Motorola Moto Z2 Force HTC Radar
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Not yet released Released Released
Specifications 
Display Size ? 2.6" diag.
4 : 3
5.5" diag.
16 : 9
3.8" diag.
5 : 3
Display Resolution & Type 176 x 220 pixels
LCD (TFT/TFD)
240 x 320 pixels
(~157 ppi)
LCD (TFT/TFD)
1440 x 2560 pixels
(~534 ppi)
AMOLED
480 x 800 pixels
(~246 ppi)
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ?
Battery 800 mAh ? 2,730 mAh 1,520 mAh
Processor ? 600 MHz Qualcomm S1 MSM7227 2.4 GHz Qualcomm Snapdragon 835 (MSM8998) 1 GHz Qualcomm Snapdragon S2 MSM8255
RAM ? ? 4 GB ?
Storage ? raw hardware ? raw hardware 64 GB 8 GB
Main Camera 1 megapixel 5 megapixel 12 megapixel 5 megapixel
Wide Camera - - - -
Tele Camera - - - -
Video Capture QCIF (176 x 144) VGA (640 x 480) 4K UHD 720p HD
Front Camera - - 5 megapixel Yes
Weight 3.17 oz
(90g)
3.11 oz
(88g)
5.04 oz
(143g)
4.83 oz
(137g)
Dimensions 3.37" x 1.78" x 0.93"
(86 x 45 x 23.6 mm)
3.26" x 1.97" x 0.64"
(83 x 50 x 16.3 mm)
6.13" x 2.99" x 0.24"
(156 x 76 x 6.1 mm)
4.7" x 2.4" x 0.43"
(119 x 61 x 10.9 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) Android Android Windows
Network Bands

GSM: 900, 1800, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 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

*

WCDMA: 1, 2, 4

GSM: 850, 900, 1800, 1900

*

Data Technology GPRS HSPA 7.2 LTE (Cat 16) HSPA 14.4
Features 
Barometer - - Yes -
Fingerprint Reader - - Yes
stand-alone
-
Flashlight - - Yes -
GPS / Location - n/a n/a n/a
VR-ready - - Yes -
Water-Resistant - - Yes -
Accessibility
Hearing Aid Compatible - - Yes Yes
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) - - Yes Yes
Alerts
Extra Display 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 -
USB Yes Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Wi-Fi - Yes
802.11 b,g
Yes
5 (802.11 a,ac,b,g,n)
Yes
4 (802.11 b,g,n)
Contacts
Picture ID Yes n/a n/a n/a
Ringer ID Yes n/a n/a n/a
Voice Dialing - 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 -
Messaging
Email Client Yes 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 n/a n/a n/a
Text Messaging Templates Yes n/a n/a n/a
Music
FM Radio - Yes - Yes
Headphone Jack (3.5mm) - Yes - Yes
Music Player Yes n/a n/a n/a
Power
Fast Charging - - 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 -
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Samsung SGH-E640 Sony Ericsson Xperia X10 mini (2010) Motorola Moto Z2 Force HTC Radar
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung SGH-E640 Sony Ericsson Xperia X10 mini (2010) Motorola Moto Z2 Force HTC Radar

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