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Phone Sony Ericsson K850 Samsung SGH-X640 Samsung Galaxy S6 (GSM) ZTE Blade A7 Prime OnePlus 12
Current U.S. Carriers (none) (none) (none) (none) (none)
Global Availability Released Released Released Released Released
Specifications 
Display Size 2.2" diag.
4 : 3
? 5.1" diag.
16 : 9
6.1" diag.
19.5 : 9
6.8" diag.
20 : 9
Display Resolution & Type 240 x 320 pixels
(~182 ppi)
LCD (TFT/TFD)
128 x 160 pixels
LCD (TFT/TFD)
1440 x 2560 pixels
(~576 ppi)
AMOLED
720 x 1560 pixels
(~282 ppi)
LCD (TFT/TFD)
1440 x 3168 pixels
(~510 ppi)
AMOLED
Display Refresh ? ? 60 Hz 60 Hz 120 Hz
Battery ? 800 mAh 2,550 mAh 3,200 mAh 5,400 mAh
Processor ? ? 2.1 GHz Samsung Exynos 7420 2 GHz MediaTek Helio A22 (MT6761) Snapdragon 8 Gen 3
RAM ? ? 3 GB 3 GB 12 GB *
Storage ? raw hardware ? raw hardware 32 GB * 32 GB 256 GB *
Main Camera 5 megapixel Yes 16 megapixel 16 megapixel 50 megapixel
Wide Camera - - - - 48 megapixel
Tele Camera - - - - 64 megapixel
Video Capture ? - 4K UHD 1080p HD 8K
Front Camera - - 5 megapixel 5 megapixel 32 megapixel
Weight 4.2 oz
(119g)
3 oz
(85g)
4.87 oz
(138g)
5.82 oz
(165g)
7.76 oz
(220g)
Dimensions 4" x 1.9" x 0.7"
(102 x 48 x 17.8 mm)
3.43" x 1.81" x 0.91"
(87 x 46 x 23.1 mm)
5.65" x 2.78" x 0.27"
(143 x 71 x 6.8 mm)
6.17" x 2.87" x 0.32"
(157 x 73 x 8.1 mm)
6.47" x 2.98" x 0.36"
(164 x 76 x 9.1 mm)
Form Factor Slab Clamshell Slab Slab Slab
Platform / OS (proprietary) (proprietary) Android Android Android
Network Bands

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

GSM: 900, 1800, 1900

4G LTE: 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 29, 30

WCDMA: 1, 2, 5

GSM: 850, 900, 1800, 1900

*

4G LTE: 2, 4, 5, 13

5G: 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 30, 38, 41, 66, 71, 77-C, 78

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

WCDMA: 1, 2, 4, 5, 6, 8, 19

GSM: 850, 900, 1800, 1900

Data Technology HSDPA 3.6 GPRS LTE (Cat 6) LTE (Cat 4) NR (5G)
Features 
Fingerprint Reader - - Yes Yes Yes
in-display (optical)
Flashlight - - Yes Yes Yes
VR-ready - - Yes - -
Water-Resistant - - - Yes
IPX2 (drip)
-
Accessibility
Hearing Aid Compatible - - Yes Yes Yes
Multiple Languages Yes Yes n/a n/a n/a
TTY/TDD (Digital) Yes - Yes - -
Alerts
Ringer Profiles Yes - - - -
Connectivity
Bluetooth Yes - Yes Yes Yes
Infrared (IR) - - Yes - -
MirrorLink - - Yes - -
NFC - - Yes - Yes
USB Yes - Yes
Micro-USB
Yes
USB Type C
Yes
USB Type C
Wi-Fi - - Yes
5 (802.11 a,ac,b,g,n)
Yes
5 (802.11 a,ac,b,g,n)
Yes
7 (802.11 a,ac,ax,b,be,g,n)
Contacts
Picture ID Yes Yes n/a n/a n/a
Ringer ID Yes Yes n/a n/a n/a
Voice Dialing Yes - n/a n/a n/a
Customization
Custom Graphics Yes Yes n/a n/a n/a
Custom Ringtones Yes Yes n/a n/a n/a
Real-Music Ringers Yes - n/a n/a n/a
Data & Network
Data Tethering Yes - n/a n/a n/a
Dual-SIM - - - - Yes
WAP / Web Browser Yes Yes n/a n/a n/a
Input
Predictive Text Entry Yes Yes n/a n/a n/a
Side Keys Yes Yes Yes Yes Yes
Touch Screen - - Yes Yes Yes
Memory
Memory Card Slot Yes - - Yes -
Messaging
Email Client Yes - n/a n/a n/a
EMS / Picture Messaging - Yes n/a n/a n/a
MMS Yes Yes n/a n/a n/a
Text Messaging Templates Yes Yes n/a n/a n/a
Music
FM Radio Yes - - Yes -
Headphone Jack (3.5mm) - - Yes Yes -
Music Player Yes - n/a n/a n/a
Photo & Video
DLNA - - Yes - -
Miracast - - Yes - -
TV Output - - Yes - -
Video Calling Yes * - n/a n/a n/a
Power
Fast Charging - - Yes - Yes
Wireless Charging - - Yes - Yes
Productivity
Alarm Yes Yes n/a n/a n/a
Calculator Yes Yes n/a n/a n/a
Calendar Yes Yes n/a n/a n/a
To-Do List Yes Yes n/a n/a n/a
Voice Memo Yes Yes n/a n/a n/a
Software
Games Yes Yes n/a n/a n/a
Java (J2ME) Yes Yes n/a n/a n/a
Voice
HD Voice - - Yes Yes Yes
Headset Jack (2.5 mm) - Yes n/a n/a n/a
Speaker Phone Yes Yes Yes Yes Yes
  * Some versions only
  Sony Ericsson K850 Samsung SGH-X640 Samsung Galaxy S6 (GSM) ZTE Blade A7 Prime OnePlus 12
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NOTE: Differences are highlighted with bold / black text for visual clarity only.

 
Phone Sony Ericsson K850 Samsung SGH-X640 Samsung Galaxy S6 (GSM) ZTE Blade A7 Prime OnePlus 12

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