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Phone Siemens A56 / A56i Samsung DoubleTime TCL 40 XL / Jitterbug Smart 4 Nokia Twist 7705 Samsung SGH-E640
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size ? 3.2" diag.
5 : 3
6.8" diag.
20 : 9
2.4" diag.
4 : 3
?
Display Resolution & Type 101 x 64 pixels 320 x 480 pixels
(~180 ppi)
LCD (TFT/TFD)
720 x 1600 pixels
(~260 ppi)
LCD (TFT/TFD)
320 x 240 pixels
(~167 ppi)
LCD (TFT/TFD)
176 x 220 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz 90 Hz ? ?
Battery 700 mAh 1,200 mAh 5,000 mAh 860 mAh 800 mAh
Processor ? 600 MHz Qualcomm 2.3 GHz MediaTek Helio G37 ? ?
RAM ? ? 4 GB ? ?
Storage ? raw hardware ? raw hardware 128 GB ? raw hardware ? raw hardware
Main Camera - 3 megapixel 50 megapixel 3 megapixel 1 megapixel
Wide Camera - - - - -
Tele Camera - - - - -
Video Capture - QVGA (320 x 240) 1080p HD ? QCIF (176 x 144)
Front Camera - - 8 megapixel - -
Weight 3 oz
(85g)
5.22 oz
(148g)
6.88 oz
(195g)
3.44 oz
(98g)
3.17 oz
(90g)
Dimensions 4" x 1.7" x 0.8"
(102 x 43 x 20.3 mm)
4.45" x 2.44" x 0.59"
(113 x 62 x 15 mm)
6.61" x 3.01" x 0.35"
(168 x 76 x 8.8 mm)
2.7" x 2.7" x 0.59"
(69 x 69 x 15 mm)
3.37" x 1.78" x 0.93"
(86 x 45 x 23.6 mm)
Form Factor Slab Clamshell Slab Swivel Clamshell
Platform / OS (proprietary) Android Android (proprietary) (proprietary)
Network Bands

GSM: 850, 1900

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 12, 13, 25, 26, 41, 66, 71

WCDMA: 2, 4, 5

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

GSM: 900, 1800, 1900

Data Technology - HSPA 7.2 LTE (Cat 6) EVDO r0 GPRS
Features 
Barometer - - Yes - -
Fingerprint Reader - - Yes - -
Flashlight - - Yes - -
GPS / Location Yes n/a n/a Yes -
Accessibility
Adjustable Text Size - n/a n/a Yes -
Hearing Aid Compatible - Yes Yes Yes -
Multiple Languages - n/a n/a Yes Yes
TTY/TDD (Digital) Yes Yes Yes Yes -
Alerts
Extra Display - - - - Yes
Ringer Profiles Yes - - - -
Connectivity
Bluetooth - Yes Yes Yes Yes
Mobile Hotspot - n/a n/a - -
USB - Yes
Micro-USB
Yes
USB Type C
Yes
Micro-USB
Yes
Wi-Fi - Yes
4 (802.11 b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
- -
Contacts
Picture ID Yes n/a n/a Yes Yes
Ringer ID Yes n/a n/a Yes Yes
Voice Dialing - n/a n/a Yes -
Customization
Changeable Body Plates Yes - - Yes -
Custom Graphics Yes n/a n/a Yes Yes
Custom Ringtones Yes n/a n/a Yes Yes
Real-Music Ringers - n/a n/a Yes Yes
Data & Network
Data Tethering - n/a n/a Yes -
WAP / Web Browser Yes n/a n/a Yes Yes
Input
Predictive Text Entry Yes n/a n/a - Yes
Side Keys - Yes Yes Yes Yes
Text Keyboard, Hardware - Yes - Yes -
Touch Screen - Yes Yes - -
Memory
Memory Card Slot - Yes Yes Yes -
Messaging
Email Client - n/a n/a Yes Yes
EMS / Picture Messaging Yes n/a n/a Yes Yes
Instant Messaging - n/a n/a Yes -
MMS - n/a n/a Yes Yes
Text Messaging Templates - n/a n/a Yes Yes
Music
Headphone Jack (3.5mm) - Yes Yes - -
Music Player - n/a n/a Yes Yes
Stereo Speakers - - Yes - -
Power
Fast Charging - - Yes - -
Productivity
Alarm Yes n/a n/a Yes Yes
Calculator Yes n/a n/a Yes Yes
Calendar - n/a n/a Yes Yes
To-Do List - n/a n/a Yes Yes
Voice Memo - n/a n/a Yes Yes
Software
BREW - n/a n/a Yes -
Games Yes n/a n/a Yes Yes
Java (J2ME) - n/a n/a - Yes
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) - n/a n/a Yes -
Speaker Phone - Yes Yes Yes Yes
  Siemens A56 / A56i Samsung DoubleTime TCL 40 XL / Jitterbug Smart 4 Nokia Twist 7705 Samsung SGH-E640
  X > < X > < X > < X > < X

NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Siemens A56 / A56i Samsung DoubleTime TCL 40 XL / Jitterbug Smart 4 Nokia Twist 7705 Samsung SGH-E640

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