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Phone Samsung Knack U310 Sony Xperia XA2 Ultra Apple iPhone 12 Pro Max Kyocera KX12 Ericsson T66
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
6" diag.
16 : 9
6.7" diag.
19.5 : 9
? ?
Display Resolution & Type 176 x 220 pixels
(~128 ppi)
LCD (TFT/TFD)
1080 x 1920 pixels
(~367 ppi)
LCD (TFT/TFD)
1284 x 2778 pixels
(~457 ppi)
AMOLED
128 x 128 pixels
LCD (STN)
?
Display Refresh ? 60 Hz 60 Hz ? ?
Battery 1,000 mAh 3,580 mAh 3,687 mAh 1,800 mAh ?
Processor ? Qualcomm Snapdragon 630 Apple A14 Bionic ? ?
RAM ? 4 GB 6 GB ? ?
Storage ? raw hardware 32 GB * 128 GB * ? raw hardware ? raw hardware
Main Camera - 23 megapixel 12 megapixel - -
Wide Camera - - 12 megapixel - -
Tele Camera - - 12 megapixel - -
Video Capture - 4K UHD 4K UHD - -
Front Camera - 16 megapixel 12 megapixel - -
Weight 3.63 oz
(103g)
7.79 oz
(221g)
8.03 oz
(228g)
4.62 oz
(131g)
2.08 oz
(59g)
Dimensions 3.78" x 2.01" x 0.74"
(96 x 51 x 18.8 mm)
6.42" x 3.15" x 0.37"
(163 x 80 x 9.5 mm)
6.33" x 3.07" x 0.29"
(161 x 78 x 7.4 mm)
4.33" x 1.97" x 1.02"
(110 x 50 x 25.9 mm)
3.62" x 1.61" x 0.69"
(92 x 41 x 17.5 mm)
Form Factor Clamshell Slab Slab Slab Slab
Platform / OS (proprietary) Android iOS (proprietary) (proprietary)
Network Bands

CDMA: 850, 1900

4G LTE: 1, 2, 4, 5, 7, 8, 12, 13, 17, 25, 28, 29, 66

WCDMA: 1, 2, 4, 5, 8

GSM: 850, 900, 1800, 1900

5G: 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77-C, 78, 260, 261

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 46, 48, 66, 71

WCDMA: 1, 2, 4, 5, 8

CDMA: 800, 850, 1900

GSM: 850, 900, 1800, 1900

CDMA: 850, 1900

AMPS: 850

GSM: 900, 1800, 1900

Data Technology - LTE (Cat 13) NR (5G) 1xRTT -
Features 
Barometer - - Yes - -
Fingerprint Reader - Yes
stand-alone
- - -
Flashlight - Yes Yes Yes -
GPS / Location Yes n/a n/a Yes -
Ruggedized - - - Yes -
Water-Resistant - - Yes
IPX8 (SCUBA)
- -
Accessibility
Adjustable Text Size Yes n/a n/a - -
Hearing Aid Compatible Yes
M4, T4 (very tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
Yes
M3, T4 (very tele-coil compatible)
- -
Multiple Languages Yes n/a n/a Yes Yes
TTY/TDD (Digital) Yes - Yes Yes -
Alerts
Extra Display Yes - - - -
Ringer Profiles - - - - Yes
Connectivity
Bluetooth - Yes Yes - -
NFC - Yes Yes - -
USB - Yes
USB Type C
Yes - -
UWB - - Yes - -
Wi-Fi - Yes
5 (802.11 a,ac,b,g,n)
Yes
6 (802.11 a,ac,ax,b,g,n)
- -
Contacts
Picture ID - n/a n/a Yes -
Ringer ID - n/a n/a Yes -
Voice Dialing Yes n/a n/a Yes -
Customization
Custom Graphics - n/a n/a Yes Yes
Custom Ringtones - n/a n/a Yes Yes
Data & Network
Data Tethering - n/a n/a Yes -
Dual-SIM - - Yes - -
WAP / Web Browser - n/a n/a Yes Yes
Input
Predictive Text Entry Yes n/a n/a Yes Yes
Side Keys Yes Yes Yes Yes Yes
Touch Screen - Yes
Capacitive
Yes
Capacitive
- -
Memory
Memory Card Slot - Yes - - -
Messaging
EMS / Picture Messaging Yes n/a n/a Yes Yes
Text Messaging Templates - n/a n/a Yes Yes
Music
FM Radio - Yes - - -
Headphone Jack (3.5mm) - Yes - - -
Stereo Speakers - - Yes - -
Photo & Video
Miracast - Yes - - -
TV Output - - Yes - -
Power
Fast Charging - Yes Yes - -
Wireless Charging - - Yes - -
Productivity
Alarm Yes n/a n/a Yes Yes
Calculator Yes n/a n/a Yes Yes
Calendar Yes n/a n/a Yes Yes
To-Do List - n/a n/a - Yes
Voice Memo - n/a n/a Yes -
Software
BREW - n/a n/a Yes * -
Games - n/a n/a Yes Yes
Voice
HD Voice - - Yes - -
Headset Jack (2.5 mm) Yes n/a n/a Yes -
Push-To-Talk - - - Yes -
Speaker Phone Yes Yes Yes Yes -
  * Some versions only
  Samsung Knack U310 Sony Xperia XA2 Ultra Apple iPhone 12 Pro Max Kyocera KX12 Ericsson T66
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Samsung Knack U310 Sony Xperia XA2 Ultra Apple iPhone 12 Pro Max Kyocera KX12 Ericsson T66

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