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Phone Siemens C56 Nokia XR21 ZTE Z998 / Unico LTE Palm Treo 650 (CDMA)
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Released Released
Specifications 
Display Size ? 6.5" diag.
20 : 9
4.5" diag.
16 : 9
?
Display Resolution & Type 101 x 64 pixels 1080 x 2400 pixels
(~406 ppi)
LCD (TFT/TFD)
540 x 960 pixels
(~245 ppi)
LCD (TFT/TFD)
320 x 320 pixels
LCD (TFT/TFD)
Display Refresh ? 60 Hz 60 Hz ?
Battery 700 mAh 4,800 mAh 2,070 mAh ?
Processor ? Snapdragon 695 1.2 GHz Qualcomm Snapdragon 400 MSM8930 312 MHz Intel XScale PXA270
RAM ? 6 GB 1 GB ?
Storage ? raw hardware 128 GB 4 GB ? raw hardware
Main Camera - 64 megapixel 5 megapixel Yes
Wide Camera - 8 megapixel - -
Tele Camera - - - -
Video Capture - 1080p HD 720p HD QVGA (320 x 240)
Front Camera - 16 megapixel 1 megapixel -
Weight 3 oz
(85g)
8.16 oz
(231g)
4.8 oz
(136g)
6.3 oz
(179g)
Dimensions 3.98" x 1.73" x 0.83"
(101 x 44 x 21.1 mm)
6.61" x 3.09" x 0.41"
(168 x 78 x 10.4 mm)
5.2" x 2.6" x 0.4"
(132 x 66 x 10.2 mm)
4.4" x 2.3" x 0.9"
(112 x 58 x 22.9 mm)
Form Factor Slab Slab Slab Slab
Platform / OS (proprietary) Android Android Palm OS
Network Bands

GSM: 850, 1900

5G: 1, 2, 3, 5, 7, 20, 25, 28, 40, 41, 66, 71, 77-C, 78, 79, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 43, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

4G LTE: 2, 4, 5, 17

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

CDMA: 850, 1900

Data Technology GPRS NR (5G) LTE (Cat 3) 1xRTT
Features 
Barometer - Yes - -
Fingerprint Reader - Yes
stand-alone
- -
Flashlight - Yes - -
GPS / Location Yes n/a n/a n/a
Ruggedized - Yes - -
Water-Resistant - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size - n/a n/a n/a
Hearing Aid Compatible - Yes
M3, T3 (mostly tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
-
Multiple Languages Yes n/a n/a n/a
TTY/TDD (Digital) Yes - Yes -
Alerts
Ringer Profiles Yes - - -
Connectivity
Bluetooth - Yes Yes Yes
Infrared (IR) - - - Yes
Mobile Hotspot - n/a n/a n/a
NFC - Yes - -
USB Yes Yes
USB Type C
Yes
Micro-USB
-
Wi-Fi - Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
4 (802.11 b,g,n)
-
Contacts
Picture ID - n/a n/a n/a
Ringer ID Yes n/a n/a n/a
Voice Dialing Yes n/a n/a n/a
Customization
Changeable Body Plates Yes - - -
Custom Graphics Yes n/a n/a n/a
Custom Ringtones 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 n/a n/a n/a
Input
Predictive Text Entry Yes n/a n/a n/a
Side Keys - Yes Yes Yes
Text Keyboard, Hardware - - - Yes
Touch Screen - Yes
Capacitive
Yes
Capacitive
Yes
Memory
Memory Card Slot - - 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 - n/a n/a n/a
Text Messaging Templates 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
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 - n/a n/a n/a
Voice Memo - 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
Headset Jack (2.5 mm) - n/a n/a n/a
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Siemens C56 Nokia XR21 ZTE Z998 / Unico LTE Palm Treo 650 (CDMA)
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Siemens C56 Nokia XR21 ZTE Z998 / Unico LTE Palm Treo 650 (CDMA)

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