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Phone Nokia 6255i / 6256i Amazon Fire Asus ROG Phone II Sonim XP Strike
Current U.S. Carriers (none) (none) (none) (none)
Global Availability Released Released Not yet released Released
Specifications 
Display Size ? 4.7" diag.
16 : 9
6.6" diag.
19.5 : 9
2" diag.
4 : 3
Display Resolution & Type 128 x 160 pixels
LCD (TFT/TFD)
720 x 1280 pixels
(~312 ppi)
LCD (TFT/TFD)
1080 x 2340 pixels
(~391 ppi)
AMOLED
240 x 320 pixels
(~200 ppi)
LCD (TFT/TFD)
Display Refresh ? ? 120 Hz ?
Battery 1,070 mAh 2,400 mAh 6,000 mAh 1,950 mAh
Processor ? 2.2 GHz Qualcomm Snapdragon 800 3 GHz Qualcomm Snapdragon 855 Plus ?
RAM ? 2 GB 12 GB 256 MB
Storage ? raw hardware 32 GB * 512 GB 512 MB
Main Camera Yes 13 megapixel 48 megapixel 2 megapixel
Wide Camera - - 13 megapixel -
Tele Camera - - - -
Video Capture ? 1080p HD 4K UHD ?
Front Camera - 2 megapixel 24 megapixel -
Weight 4.23 oz
(120g)
5.64 oz
(160g)
8.47 oz
(240g)
6.52 oz
(185g)
Dimensions 3.36" x 1.87" x 0.97"
(85 x 47 x 24.6 mm)
5.5" x 2.6" x 0.35"
(140 x 66 x 8.9 mm)
6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 mm)
4.95" x 2.3" x 0.98"
(126 x 58 x 24.9 mm)
Form Factor Clamshell Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android (proprietary)
Network Bands

CDMA: 850, 1900

AMPS: 850

4G LTE: 1, 2, 3, 4, 5, 7, 8, 17

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 18, 19, 20, 26, 28, 29, 32, 34, 38, 39, 40, 41, 46, 66

WCDMA: 1, 2, 3, 4, 5, 8, 19

GSM: 850, 900, 1800, 1900

CDMA: 800, 850, 1900

Data Technology 1xRTT LTE (Cat 4) LTE (Cat 20) EVDO rA
Features 
Fingerprint Reader - - Yes
in-display (optical)
-
Flashlight - Yes Yes Yes
GPS / Location Yes Yes n/a Yes
Ruggedized - - - Yes
Water-Resistant - - - Yes
Accessibility
Hearing Aid Compatible Yes Yes Yes Yes
Multiple Languages Yes Yes n/a Yes
TTY/TDD (Digital) Yes Yes - -
Alerts
Extra Display Yes - - -
Ringer Profiles Yes - - Yes
Connectivity
Bluetooth Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Yes
Classic Audio
Infrared (IR) Yes - - -
Mobile Hotspot - Yes n/a -
NFC - Yes Yes -
USB Yes Yes
Micro-USB
Yes
USB Type C
Yes
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
-
Contacts
Picture ID Yes Yes n/a Yes
Ringer ID Yes Yes n/a Yes
Voice Dialing Yes Yes n/a -
Customization
Custom Graphics Yes - n/a Yes
Custom Ringtones Yes Yes n/a Yes
Real-Music Ringers Yes - n/a Yes
Data & Network
Data Tethering Yes Yes n/a -
Dual-SIM - - Yes -
WAP / Web Browser Yes Yes n/a Yes
Input
Predictive Text Entry Yes Yes n/a Yes
Side Keys Yes Yes Yes Yes
Touch Screen - Yes Yes -
Memory
Memory Card Slot Yes - - Yes
Messaging
Email Client Yes Yes n/a -
EMS / Picture Messaging Yes * - n/a -
MMS Yes Yes n/a Yes
Text Messaging Templates Yes Yes n/a -
Music
FM Radio Yes - Yes Yes
Headphone Jack (3.5mm) - Yes Yes Yes
Music Player Yes * Yes n/a Yes
Stereo Speakers - Yes Yes -
Photo & Video
Miracast - Yes - -
TV Output - Yes Yes -
Power
Fast Charging - - Yes -
Productivity
Alarm Yes Yes n/a Yes
Calculator Yes Yes n/a Yes
Calendar Yes Yes n/a Yes
To-Do List Yes - n/a Yes
Voice Memo Yes Yes n/a Yes
Software
BREW Yes * - n/a -
Games Yes Yes n/a Yes
Java (J2ME) Yes * - n/a Yes
Voice
HD Voice - Yes - -
Headset Jack (2.5 mm) Yes - n/a -
Push-To-Talk - - - Yes
Speaker Phone Yes Yes Yes Yes
  * Some versions only
  Nokia 6255i / 6256i Amazon Fire Asus ROG Phone II Sonim XP Strike
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Nokia 6255i / 6256i Amazon Fire Asus ROG Phone II Sonim XP Strike

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