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Phone Samsung Transform Ultra Nokia N91 LG K4 / Optimus Zone 3 / Rebel Nubia RedMagic 5S Asus ROG Phone II
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Not yet released
Specifications 
Display Size 3.5" diag.
5 : 3
? 4.5" diag.
16 : 9
6.7" diag.
19.5 : 9
6.6" diag.
19.5 : 9
Display Resolution & Type 320 x 480 pixels
(~165 ppi)
LCD (TFT/TFD)
176 x 208 pixels
LCD (TFT/TFD)
480 x 854 pixels
(~218 ppi)
LCD (TFT/TFD)
1080 x 2340 pixels
(~388 ppi)
AMOLED
1080 x 2340 pixels
(~391 ppi)
AMOLED
Display Refresh 60 Hz ? 60 Hz 144 Hz 120 Hz
Battery 1,500 mAh ? 1,940 mAh 4,500 mAh 6,000 mAh
Processor 1 GHz Qualcomm Snapdragon S2 MSM8655 ? 1.1 GHz Qualcomm Snapdragon 210 (MSM8909) Qualcomm Snapdragon 865 3 GHz Qualcomm Snapdragon 855 Plus
RAM ? ? 1.5 GB 8 GB * 12 GB
Storage ? raw hardware ? raw hardware 16 GB * 128 GB * 512 GB
Main Camera 3 megapixel 2 megapixel 5 megapixel 64 megapixel 48 megapixel
Wide Camera - - - 8 megapixel 13 megapixel
Tele Camera - - - - -
Video Capture VGA (640 x 480) ? 720p HD 4K UHD 4K UHD
Front Camera Yes - 2 megapixel 8 megapixel 24 megapixel
Weight 4.9 oz
(139g)
5.78 oz
(164g)
3.99 oz
(113g)
7.76 oz
(220g)
8.47 oz
(240g)
Dimensions 4.5" x 2.4" x 0.55"
(114 x 61 x 14 mm)
4.45" x 2.17" x 0.87"
(113 x 55 x 22.1 mm)
5.19" x 2.62" x 0.35"
(132 x 67 x 8.9 mm)
6.64" x 3.07" x 0.38"
(169 x 78 x 9.8 mm)
6.73" x 3.06" x 0.37"
(171 x 78 x 9.5 mm)
Platform / OS Android S60 (Symbian) Android Android Android
Network Bands

CDMA: 800, 850, 1900

WCDMA: 1

GSM: 900, 1800, 1900

4G LTE: 2, 4, 5, 13

WCDMA: 1, 2, 5

CDMA: 850, 1900

GSM: 850, 900, 1800, 1900

*

5G: 41, 78

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 18, 19, 20, 26, 34, 38, 40, 41

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

CDMA: 850, 1900

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

Data Technology EVDO rA EDGE LTE (Cat 3) NR (5G) LTE (Cat 20)
Features 
Fingerprint Reader - - - Yes Yes
in-display (optical)
Flashlight - - Yes Yes Yes
Accessibility
Hearing Aid Compatible Yes - Yes - Yes
TTY/TDD (Digital) Yes - Yes - -
Alerts
Ringer Profiles - Yes - - -
Connectivity
Bluetooth Yes Yes Yes Yes Yes
NFC - - - - Yes
USB Yes Yes
Mini-USB
Yes
Micro-USB
Yes
USB Type C
Yes
USB Type C
Wi-Fi Yes
4 (802.11 a,b,g,n)
Yes
802.11 b,g
Yes
4 (802.11 b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Data & Network
Dual-SIM - - - Yes Yes
Input
Side Keys Yes Yes Yes Yes Yes
Text Keyboard, Hardware Yes - - - -
Touch Screen Yes - Yes Yes Yes
Memory
Memory Card Slot Yes - Yes - -
Music
FM Radio - Yes - - Yes
Headphone Jack (3.5mm) Yes Yes Yes Yes Yes
Stereo Speakers - - - Yes Yes
Photo & Video
Miracast - - Yes - -
TV Output - - - Yes Yes
Power
Fast Charging - - - Yes Yes
Voice
HD Voice - - Yes * - -
Push-To-Talk - Yes * - - -
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Samsung Transform Ultra Nokia N91 LG K4 / Optimus Zone 3 / Rebel Nubia RedMagic 5S Asus ROG Phone II
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Transform Ultra Nokia N91 LG K4 / Optimus Zone 3 / Rebel Nubia RedMagic 5S Asus ROG Phone II

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